CarBahn has produced the largest and most thermally efficient heat exchanger on the market. Increasing cooling capacity by 40%. This heat exchanger utilizes F1 heat exchanger technology. This heat exchanger technology is dramatically more efficient than the lower cost heat exchangers on the market. The race car heat exchanger is significantly lighter weight.

Increasing boost generates more heat. The addition of the heat exchanger allows you to run more boost safely by reducing charge air temperature. This reduction in charge air temperature also makes more power.  This is particularly noticeable in summer months when ambient temperatures are higher.

When used in conjunction with CarBahn software the addition of this heat exchanger provides enough safety that we can offer a factory matching warranty on your engine and drivetrain.

CarBahn high flow replacement air filter for your OEM airbox.  With less restriction and similar cleaning characteristics, this filter will increase the breathability of your high-performance engine. CarBahn measured a power gain of 10 hp.

CarBahn Cold air intake consists of a Carbon Fiber Airbox Lid replacement for OEM airbox lid to reduce weight and add visual appeal to the engine bay and a high flow filter. The high flow filter increases power between 7-15hp depending on boost pressure and application.

CarBahn CAI is completely sealed like the OEM system, so no power is lost from hot air leaking into the intake like most aftermarket systems that are designed for style and noise, not function.

CarBahn Titanium exhaust

The CarBahn high flow exhaust is made of titanium for maximum durability and light weight. This is a complete cat back exhaust not just a pair of axle back mufflers. The exhaust is lightened between 25lbs and 40lbs depending on the application.

The CarBahn exhaust retains the OEM catalyst and electronic controller valve in the mufflers for a mellow sporty sound when driving normal without the drone normally associated with most aftermarket exhausts. When you go to WOT and the ecu will open the electronic valve increases flow for maximum power making a very sporty sound without being too loud.

This exhaust also comes with titanium and carbon exhaust tips.

The CarBahn High flow exhaust is made of stainless steel for maximum durability. This is a complete cat back exhaust not just a pair of axle back mufflers.

The CarBahn exhaust retains the OEM catalyst and electronic controller valve in the mufflers for a mellow sporty sound when driving normally without the drone usually associated with most aftermarket exhausts. When you go to WOT ECU will open the electronic valve increases flow for maximum power making a very sporty sound without being too loud.

The exhaust comes with stainless tips however a CarBahn, Carbon exhaust tip is also available.

Hand crafted carbon fiber and stainless steel CarBahn exhaust tip for CarBahn exhaust systems.  Add some Carbon to the rear of your BMW with exclusive CarBahn badging.  There are 4 Tips are included in the kit.

CarBahn is proud to announce the Mono-ball for the G8X BMW M3/M4 models.

The CarBahn Mono-ball Kit replaces the rubber bushings in the stock thrust arms with sealed precision ball joints inside machined aluminum housings. As a result of eliminating the deflection that is inherent in rubber bushings, braking stability is improved, and the tendency for the car to follow ruts in the road (especially with wider wheels and tires) is reduced. The bearings inside the Mono-ball Assembly are nylon-lined for quiet operation and are sealed against water and debris intrusion for longevity.

CarBahn is proud to announce the Mono-ball for the G8X BMW M3/M4 models.

The CarBahn Mono-ball Kit replaces the rubber bushings in the stock thrust arms with sealed precision ball joints inside machined aluminum housings. As a result of eliminating the deflection that is inherent in rubber bushings, braking stability is improved, and the tendency for the car to follow ruts in the road (especially with wider wheels and tires) is reduced.The bearings inside the Mono-ball Assembly are nylon-lined for quiet operation and are sealed against water and debris intrusion for longevity.

When tracking a car with a high performance suspension and R compound tires will often overload the OEM eccentric adjuster causing it to slip. This is especially true when you hit racing curbs at high speed on a track day.  

When you install our rear toe link adjusters you no longer need the factory eccentric adjuster. This provides the opportunity to lock those adjusters so the alignment will stay put when driving on the track. We highly recommend this option when purchasing our toe link kit if you are going to partake in track days. 

⚠️ This kit ONLY works in conjunction with our Toe Link Kit, CBF82-3123 and cannot be used with stock toe links!

Upgrade your BMW M2/M3/M4 aesthetics with our carbon fiber engine covers. Crafted to perfection, these covers seamlessly replace the OEM counterpart, adding a sleek and sporty touch to your engine bay. Elevate your BMW experience with our premium carbon fiber engine covers. 

– BMW M Badge not included.

Design, Development, and Testing

While the OEM Transmission Cooler is adequate for the G8X in stock form, it starts to come up a bit short on modified/tuned vehicles. Specifically ones that see heavy track/competition use. Transmission oil temperatures have a major impact on the shifting performance of your automatic transmission. If the fluid passes optimal temperatures you will start to see some delays in shifting. Sluggish shifting can be quite frustrating, but the real concern is the damage that can be done to the transmission when temperatures get too high. There are often cases where drivers don’t notice the change in shifting performance due to the gradual onset, but the damage is still being done slowly on a very expensive and important component.

By changing from the OEM single core design to a dual core, CSF was able to increase the overall volume by 194%. This design offers a drastic improvement in heat dissipation and increases the fluid capacity of the coolers by ~94%. Utilizing CSF’s AC Condenser Technology, a 1-Row Super-High Pressure 16mm 9-Channel Microtube design optimizes oil flow and offers maximum surface area contact. These features combine to offer the best possible heat dissipation from the system.

Rock Guard

CSF knows the kind of punishment the front of a car can take on or off the track. The wrong bit of debris flying through the front grille can quickly punch a hole in a cooler. Because the Transmission cooler sits at the very front of the center cooling stack, it is quite vulnerable to damage. In addition, “open face” race style grilles have become quite popular on the G8X. These grilles can add to the risk of debris passing through.

The CarBahn engine is both stronger and less expensive than the BMW OEM factory engine. The S58 CarBahn engine is designed to improve the strength of your engine if you are tuning your car. Connecting rods are replaced with Carrillo forged racing rods. Pistons are CP forged racing pistons. The engine also comes with high performance valve springs for increased boost. The engine is a complete overhaul with blue printing and balancing. This engine is designed for an increase in torque of 50% over stock.

Steve Dinan’s engine shop has been building racing engines for 43 years. Those engines have won many championships including three prototype racing championships including 2 overall wins in the 24hrs of Daytona in 2011-2013. You will not find a higher quality engine. All engines are backed with a two-year warranty.

Engine core acceptance parameters

Must be complete core (factory engine, from oil pan to valve cover)

• Block must have no:
  • Holes or cracks in casting
  • Holes or crack in covers
  • Bore damage that cannot be honed out
  • Thrust surface damage
  • Journal surfaces damage
  • Bolt hole damage that can’t be repaired
• Heads must have no:
  • Holes or cracks in casting
  • Holes or crack in covers
  • Thrust surface damage
  • Journal surfaces damage
  • Bolt hole damage that can’t be repaired
• Additional repair charges could apply for damaged items that are not normally changed during an overhaul and cannot be repaired or serviced
  • Valves
  • Crankshafts
  • Camshafts
  • Guides
  • ValveTronic mechanism
  • Vanos mechanism

The CarBahn engine is both stronger and less expensive than the BMW OEM factory engine. The S58 CarBahn engine is designed to improve the strength of your engine if you are tuning your car. Connecting rods are replaced with Carrillo forged racing rods. Pistons are CP forged racing pistons. The engine also comes with ported cylinder head and high-performance valve springs for ultra-high boost pressures. The engine is a complete overhaul with blue printing and balancing. This engine is designed for an increase in torque of 100% over stock.

Steve Dinan’s engine shop has been building racing engines for 43 years. Those engines have won many championships including three prototype racing championships including 2 overall wins in the 24hrs of Daytona in 2011-2013. You will not find a higher quality engine. All engines are backed with a two-year warranty.

Derived from our GTD1 racing wheel, the Forgeline GT1 5-Lug brings its racing DNA to the street. The GT1 5-Lug combines the latest in advanced wheel technology, including one piece forged monoblock construction, motorsport engineered design, I-beamed spokes, and I-beamed spoke spans to deliver head-turning good looks with track-ready capability.

The Forgeline GT1 5-Lug is a fully-forged one-piece monoblock wheel that is manufactured using technology similar to our very successful GA1R wheel. The GT1 5-Lug’s concave 10-spoke design includes extra long spokes that extend beyond the hidden lug holes while allowing plenty of room for caliper clearance and extreme brake fitment. The one-piece monoblock forging and computer-simulated FEA design process yield a wheel that is very lightweight, extremely stiff, and has excellent fatigue strength. The GT1 5-Lug is machined from a single forging of 6061-T6 aluminum. It is currently available in 18, 19, 20, 21, and 22-inch diameters. (Please Note: Depending on size, the GT1 5-Lug may be available in deep, medium, or shallow concave profiles.) And just like any Forgeline wheel, the GT1 5-Lug is available with fully customizable finish options.

• • One-Piece Monoblock Construction
  • Concave Profile
  • 10-Spoke Design
  • Extended Spoke Length
  • Hidden Lug Holes
  • I-Beamed Spoke Technology
  • I-Beamed Spoke Spans Along the Lip
  • Very Lightweight
  • Generous Brake Clearance
  • Forged 6061-T6 Aluminum
  • Customizable Finish Options
  • Legendary Forgeline Quality and Customer Service

The Forgeline GA1R is a fully-forged one-piece monoblock wheel that utilizes much of the technology and design of our very successful GA3R racing wheel, including our “I-beamed” spoke technology. The concave design of the GA1R not only looks great, but allows plenty of room for caliper clearance and extreme brake fitment, while the one-piece monoblock forging and I-beamed spoke design yield a wheel that is extremely stiff with fatigue strength equal to our proven GA3R. And yet despite the strength and stiffness, for most applications and sizes, it also delivers a high-performance weight reduction – making it perfect for motorsports and racing applications or the discerning street enthusiast who demands the ultimate in performance capability!

The GA1R is designed for racing. It is engineered with a 2100 lb. street-tire load rating (per wheel) to ensure strength and integrity, even when subjected to the massive loads encountered on the stickiest race tires.

The GA1R is produced using our traditional forging method from 6061-T6 aluminum. It is currently available in 18, 19, 20, 21, and 22-inch sizes with a range of widths and offsets. (Please Note: Depending on size, the GA1R may be available in deep, medium, or shallow concave profiles. See sizing chart for details.) And just like any Forgeline wheel, the GA1R is available with fully customizable finish options.

The GA1R is also available for limited applications in Deep Cap (DC) and Extra Deep Cap (EDC) profiles. These Deep Cap profiles employ unique in-house lathe turnings that allow us to position the center cap deep within the center of the wheel and create an exaggerated extra-aggressive concave look. This option is an excellent choice for select vehicles including the BMW M3, Nissan GT-R, ZL1 Camaro, C6 Z06 Corvette (rear only), and certain Porsche models (rear only).

• • One-Piece Monoblock Design
  • Concave Profile
  • Deep Cap (DC) and Extra Deep Cap (EDC) Options Available for Select Applications
  • I-Beamed Spoke Technology
  • Extreme Stiffness
  • Extreme Fatigue Strength
  • 2100 lb. Street-Tire Load Rating (per wheel)
  • Lightweight
  • Generous Brake Clearance
  • Forged 6061-T6 Aluminum
  • Includes Standard Aluminum Center Cap
  • Customizable Finish Options
  • Legendary Forgeline Quality and Customer Service

The AR1 is an exciting evolution in Forgeline monoblock styling, with a very angular split spoke pattern, extra-deep concave profile, and radically-chamfered outer edge. The fully-forged Forgeline AR1 one piece monoblock wheel utilizes manufacturing technology similar to the very successful GA1R wheel. Beyond just beautiful style, the AR1 is engineered to allow plenty of room for caliper clearance and extreme brake fitment. The one-piece monoblock forging, computer-simulated FEA design process, and I-beam spoke technology yield a wheel that is lightweight, stiff, and has excellent fatigue strength.

The Forgeline AR1 one piece monoblock wheel is machined from a single forging of 6061-T6 aluminum. It is currently available in 18, 19, 20, and 21-inch diameters with a range of widths and offsets. (Please Note: Depending on size, the AR1 may be available in deep, medium, or shallow concave profiles.)

And just like any Forgeline wheel, it is available with fully customizable finish options. Price for the Forgeline AR1 one piece monoblock wheel set starts at $6600.00 depending on size and finish. To purchase this wheel set, please contact us.

Standard Finish:

Standard Silver Center, Hyper Silver Powder Coat, Gunmetal Center, Satin Gunmetal Center, Titanium Powder Coat, Graphite Powder Coat, Matte Graphite Powder Coat, Gloss Black, Satin Black, Matte Black, Gloss Bronze, Satin Bronze, Matte Bronze, Light Bronze Anodized Powder Coat, Medium Bronze Anodized Powder Coat, Race Gold Powder Coat, Matte Gold Powder Coat, Pearl Gray Powder Coat

Optional Finish:

Transparent Smoke, Transparent Copper, Transparent Red, Transparent Blue, Tinted Gold Transparent, Matte Transparent, Brushed Center, Fully Polished, Polished & Brushed, Diamond Cut Finish, HTM (High Tech Machined) Finish, Machined & Brushed, Custom Center Color, Black Chrome PVD

Derived from the GTD1 racing wheel, the Forgeline GT1 5-Lug one piece monoblock wheel brings its racing DNA to the street. The GT1 5-Lug combines the latest in advanced wheel technology, including one piece forged monoblock construction, motorsport engineered design, I-beamed spokes, and I-beamed spoke spans to deliver head-turning good looks with track-ready capability.

The GT1 5-Lug is a fully-forged one-piece monoblock wheel that is manufactured using technology similar to the very successful GA1R wheel. The GT1 5-Lug’s concave 10-spoke design includes extra long spokes that extend beyond the hidden lug holes while allowing plenty of room for caliper clearance and extreme brake fitment. The one-piece monoblock forging and computer-simulated FEA design process yield a wheel that is very lightweight, extremely stiff, and has excellent fatigue strength.

The Forgeline GT1 5-Lug one piece monoblock wheel is machined from a single forging of 6061-T6 aluminum. It is currently available in 18, 19, 20, and 21-inch diameters. (Please Note: Depending on size, the GT1 5-Lug may be available in deep, medium, or shallow concave profiles.)

And just like any Forgeline wheel, it is available with fully customizable finish options. Price for the Forgeline GT1 5-Lug one piece monoblock wheel set starts at $8400.00 depending on size and finish. To purchase a wheel set with a finish option other than those available above, please contact us.

Standard Finish:

Standard Silver Center, Hyper Silver Powder Coat, Gunmetal Center, Satin Gunmetal Center, Titanium Powder Coat, Graphite Powder Coat, Matte Graphite Powder Coat, Gloss Black, Satin Black, Matte Black, Gloss Bronze, Satin Bronze, Matte Bronze, Light Bronze Anodized Powder Coat, Medium Bronze Anodized Powder Coat, Race Gold Powder Coat, Matte Gold Powder Coat, Pearl Gray Powder Coat

Optional Finish:

Transparent Smoke, Transparent Copper, Transparent Red, Transparent Blue, Tinted Gold Transparent, Matte Transparent, Brushed Center, Fully Polished, Polished & Brushed, Diamond Cut Finish, HTM (High Tech Machined) Finish, Machined & Brushed, Custom Center Color, Black Chrome PVD

The RB1 is a fully-forged wheel that utilizes manufacturing technology similar to the very successful GA1R wheel. The Forgeline RB1 one piece monoblock wheel features a concave 10-spoke design with a subtle directional twist on each spoke, so each set includes unique left and right versions. The RB1 also utilizes Forgeline’s I-beam technology along each spoke and along the front lip between spokes to reduce mass and enhance strength & rigidity. The one-piece monoblock forging and computer-simulated FEA design process yield a wheel that is lightweight, extremely stiff, and has excellent fatigue strength.

The Forgeline RB1 one piece monoblock wheel is machined from a single forging of 6061-T6 aluminum. It is currently available in 18, 19, 20, and 21-inch diameters with a range of widths and offsets. (Please Note: Depending on size, the RB1 may be available in deep, medium, or shallow concave profiles.)

The Forgeline one piece monoblock RB1 is also available for limited applications in Deep Cap (DC) and Extra Deep Cap (EDC) profiles. These Deep Cap profiles employ unique in-house lathe turnings that allow us to position the center cap deep within the center of the wheel and create an exaggerated extra-aggressive concave look. This option is an excellent choice for select vehicles including the BMW M3 and certain Porsche models (rear only)

And just like any Forgeline wheel, it is available with fully customizable finish options. Price for the Forgeline RB1 one piece monoblock wheel set starts at $6200.00 depending on size and finish. To purchase this wheel set, please contact us.

Standard Finish:

Standard Silver Center, Hyper Silver Powder Coat, Gunmetal Center, Satin Gunmetal Center, Titanium Powder Coat, Graphite Powder Coat, Matte Graphite Powder Coat, Gloss Black, Satin Black, Matte Black, Gloss Bronze, Satin Bronze, Matte Bronze, Light Bronze Anodized Powder Coat, Medium Bronze Anodized Powder Coat, Race Gold Powder Coat, Matte Gold Powder Coat, Pearl Gray Powder Coat

Optional Finish:

Transparent Smoke, Transparent Copper, Transparent Red, Transparent Blue, Tinted Gold Transparent, Matte Transparent, Brushed Center, Fully Polished, Polished & Brushed, Diamond Cut Finish, HTM (High Tech Machined) Finish, Machined & Brushed, Custom Center Color, Black Chrome PVD

Please note, images are for representational purposes only. Actual product may vary.

The Forgeline MT1 continues the exciting evolution in Forgeline monoblock styling. It features a ten spoke mesh design, unique deeply-cut diamonds machined into the base of each spoke around the center of the wheel, deep concave profile, and radically-chamfered outer edge. The MT1 is a fully-forged one-piece monoblock wheel that utilizes manufacturing technology similar to our very successful GA1R wheel. Beyond just beautiful style, the Forgeline MT1 one piece monoblock wheel is engineered to allow plenty of room for caliper clearance and extreme brake fitment. The one-piece monoblock forging and computer-simulated FEA design process yield a wheel that is lightweight, stiff, and has excellent fatigue strength.

The Forgeline MT1 one piece monoblock wheel is machined from a single forging of 6061-T6 aluminum. It is currently available in 18, 19, 20, and 21-inch diameters with a range of widths and offsets. (Please Note: Depending on size, the MT1 may be available in deep, medium, or shallow concave profiles.) Like any Forgeline wheel, the MT1 is available with fully customizable finish options.

One-Piece Forged Monoblock Construction
Concave Profile
Ten Spoke Mesh Design
Unique Diamond Pattern Machined Into Each Spoke Base
Strong Chamfered Machining Details
Lightweight
Generous Brake Clearance
Forged 6061-T6 Aluminum
Includes Standard Aluminum Center Cap
Customizable Finish Options
Legendary Forgeline Quality

And just like any Forgeline wheel, it is available with fully customizable finish options. Price for the Forgeline MT1 one piece monoblock wheel set starts at $8400.00 depending on size and finish. To purchase a wheel set with a finish option other than shown above, please please contact us.

Standard Finish:

Standard Silver Center, Hyper Silver Powder Coat, Gunmetal Center, Satin Gunmetal Center, Titanium Powder Coat, Graphite Powder Coat, Matte Graphite Powder Coat, Gloss Black, Satin Black, Matte Black, Gloss Bronze, Satin Bronze, Matte Bronze, Light Bronze Anodized Powder Coat, Medium Bronze Anodized Powder Coat, Race Gold Powder Coat, Matte Gold Powder Coat, Pearl Gray Powder Coat

Optional Finish:

Transparent Smoke, Transparent Copper, Transparent Red, Transparent Blue, Tinted Gold Transparent, Matte Transparent, Brushed Center, Fully Polished, Polished & Brushed, Diamond Cut Finish, HTM (High Tech Machined) Finish, Machined & Brushed, Custom Center Color, Black Chrome PVD

Please note, images are for representational purposes only. Actual product may vary.

The VX1 continues the exciting evolution in Forgeline monoblock styling. It features a sharp Y-spoke design (with long spokes that wrap around the lug holes), striking sharp angles, deep concave profile, and radically-chamfered outer edge. The Forgeline VX1 is a fully-forged one-piece monoblock wheel that utilizes manufacturing technology similar to our very successful GA1R wheel. Beyond just beautiful style, the Forgeline VX1 one piece monoblock wheel is engineered to allow plenty of room for caliper clearance and extreme brake fitment. The one-piece monoblock forging and computer-simulated FEA design process yield a wheel that is lightweight, stiff, and has excellent fatigue strength.

The Forgeline VX1 one piece monoblock wheel is machined from a single forging of 6061-T6 aluminum. It is currently available in 18, 19, 20, 21, and 22-inch diameters with a range of widths and offsets. (Please Note: Depending on size, the VX1 may be available in deep, medium, or shallow concave profiles.)

One-Piece Forged Monoblock Construction
Concave Profile
Sharp Y-Spoke Design
Striking Sharp Angles
Strong Chamfered Machining Details
Lightweight
Generous Brake Clearance
Forged 6061-T6 Aluminum
Includes Standard Aluminum Center Cap
Customizable Finish Options
Legendary Forgeline Quality

And just like any Forgeline wheel, it is available with fully customizable finish options. Price for the Forgeline VX1 one piece monoblock wheel set starts at $8400.00 depending on size and finish. To purchase a wheel set with a finish option other than those available above, please please contact us.

Standard Finish:

Standard Silver Center, Hyper Silver Powder Coat, Gunmetal Center, Satin Gunmetal Center, Titanium Powder Coat, Graphite Powder Coat, Matte Graphite Powder Coat, Gloss Black, Satin Black, Matte Black, Gloss Bronze, Satin Bronze, Matte Bronze, Light Bronze Anodized Powder Coat, Medium Bronze Anodized Powder Coat, Race Gold Powder Coat, Matte Gold Powder Coat, Pearl Gray Powder Coat

Optional Finish:

Transparent Smoke, Transparent Copper, Transparent Red, Transparent Blue, Tinted Gold Transparent, Matte Transparent, Brushed Center, Fully Polished, Polished & Brushed, Diamond Cut Finish, HTM (High Tech Machined) Finish, Machined & Brushed, Custom Center Color, Black Chrome PVD

Please note, images are for representational purposes only. Actual product may vary.