Rear Diffusers
- Carbon Creations®J Sport Style Carbon Fiber Rear Diffuser (118181)J Sport Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$666.00$925.00Save $259.00 (28%)
- Carbon Creations®KT Style Carbon Fiber Rear Diffuser (115535)KT Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$838.80$1,166.00Save $327.20 (28%)
- Carbon Creations®L Sport Style Carbon Fiber Rear Diffuser (114382)L Sport Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$279.90$389.00Save $109.10 (28%)
- Carbon Creations®L Sport Style Carbon Fiber Rear Diffuser (112989)L Sport Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$286.20$398.00Save $111.80 (28%)
- Carbon Creations®LBW Style Carbon Fiber Rear Diffuser (113533)LBW Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$848.70$1,179.00Save $330.30 (28%)
- Carbon Creations®LBW Style Carbon Fiber Rear Diffuser (113511)LBW Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$1,073.70$1,492.00Save $418.30 (28%)
- Carbon Creations®LE Designs Carbon Fiber Rear Diffuser (106394)LE Designs Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$912.60$1,268.00Save $355.40 (28%)
- Carbon Creations®Lexios Style Carbon Fiber Rear Diffuser (117929)Lexios Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$431.10$599.00Save $167.90 (28%)
- Carbon Creations®M Performance Aero Style Carbon Fiber Rear Diffuser (118089)M Performance Aero Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$308.70$429.00Save $120.30 (28%)
- Carbon Creations®M Performance Style Carbon Fiber Rear Diffuser (109558)M Performance Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$238.50$332.00Save $93.50 (28%)
- Carbon Creations®M Performance Style DriTech Carbon Fiber Rear Diffuser (113149)M Performance Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$135.90$189.00Save $53.10 (28%)
- Carbon Creations®M Power Style Carbon Fiber Rear Diffuser (109421)M Power Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$627.30$872.00Save $244.70 (28%)
- Carbon Creations®MTS Style Carbon Fiber Rear Diffuser (116142)MTS Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$410.40$571.00Save $160.60 (28%)
- Carbon Creations®Malve Style Carbon Fiber Rear Diffuser (117779)Malve Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$420.30$584.00Save $163.70 (28%)
- Carbon Creations®Meller Style Carbon Fiber Rear Diffuser (119139)Meller Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$603.90$839.00Save $235.10 (28%)
- Carbon Creations®Novarix Style Carbon Fiber Rear Diffuser (118027)Novarix Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$298.80$415.00Save $116.20 (28%)
- Carbon Creations®OE Style DriTech Carbon Fiber Rear Diffuser (114414)OE Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$514.80$715.00Save $200.20 (28%)
- Carbon Creations®Patriot Style Carbon Fiber Rear Diffuser (118041)Patriot Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$550.80$765.00Save $214.20 (28%)
- Carbon Creations®Power Style Carbon Fiber Rear Diffuser (117250)Power Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$647.10$899.00Save $251.90 (28%)
- Carbon Creations®RBS Style Carbon Fiber Rear Diffuser (116200)RBS Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$587.70$817.00Save $229.30 (28%)
- Carbon Creations®RBS Style Carbon Fiber Rear Diffuser (113547)RBS Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$450.00$626.00Save $176.00 (28%)
- Carbon Creations®RBS V3 Style Carbon Fiber Rear Diffuser (113879)RBS V3 Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$359.10$499.00Save $139.90 (28%)
- Carbon Creations®RS3 Style Carbon Fiber Rear Diffuser (115673)RS3 Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$221.40$308.00Save $86.60 (28%)
- Carbon Creations®Rover Style Carbon Fiber Rear Diffuser (117955)Rover Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$251.10$349.00Save $97.90 (28%)
- Carbon Creations®S Line Style Carbon Fiber Rear Diffuser (114209)S Line Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$288.90$402.00Save $113.10 (28%)
- Carbon Creations®SBZ Style Carbon Fiber Rear Diffuser (117006)SBZ Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$315.90$439.00Save $123.10 (28%)
- Carbon Creations®SM-G Style Carbon Fiber Rear Diffuser (113380)SM-G Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$201.60$280.00Save $78.40 (28%)
- Carbon Creations®SP-N Style Carbon Fiber Rear Diffuser (108334)SP-N Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$925.20$1,285.00Save $359.80 (28%)
- Carbon Creations®Sceptre Style Carbon Fiber Rear Diffuser (118039)Sceptre Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$495.90$689.00Save $193.10 (28%)
- Carbon Creations®Super Fin Style Carbon Fiber Rear Diffuser (115546)Super Fin Style Rear Diffuser by Carbon Creations®. Accelerate the velocity of the airflow underneath your car with this Rear Diffuser. At speed, the rear diffuser will decrease the pressure under the car with a resulting increase in...Hand-laid carbon fiber part on top of fiberglass2x2 twill weave carbon fiber$558.90$777.00Save $218.10 (28%)
When constructing a race car, no matter whether it’s a purpose built track machine or a modified production vehicle, car builders try to achieve an aerodynamic balance between drag and downforce. Minimizing drag reduces the air resistance encountered by the car, allowing it to go faster. Downforce is necessary so the tires stay firmly planted on the track surface for optimal power delivery, steering and braking. Diffusers, air dams and side skirts combine to increase down force on race cars. If you want to make your machine look like it’s ready for the track, check out our selection of diffusers.
Although some body mods increase drag to create downforce, this tradeoff is necessary for overall vehicle performance. However, there are component choices a builder can make that maximize downforce without creating excessive drag. Such is the case with a rear diffuser. When combined with an air dam and side skirts, a rear diffuser functions to increase the velocity of the air flowing underneath the car and increase downforce and traction at the tires.
According to Bernoulli’s Principle, when the velocity of air increases, its pressure decreases. This means that the air pressure above the car is greater, and this greater pressure exerted downward provides the necessary downforce. Although components like rear wings can also be used to provide downforce, they create much more aerodynamic drag while doing so than a rear diffuser. The diffuser provides the space for the high velocity, low pressure air flow to decelerate and expand at the rear of the vehicle, creating a pressure differential and more downforce. Diffusers also typically have dividers that allow the air flow to transition to the airstream at the back of the car without creating turbulence and drag.
Of course, the above description applies mainly to a car constructed expressly for racing. Such cars usually have smoother undercarriages to facilitate the increased air flow velocity, and they are driven at much higher speeds than are allowable on the highway, so the average street driven car will not realize all of a diffuser’s benefits. But we know that the visual appeal of a custom rear diffuser and aerodynamic body components in general is just as, if not more important to street driven car owners than functionality, which is why we have the extensive selection of diffusers you see on the page before you.
We offer rear diffusers for most popular cars in materials including carbon fiber, aluminum, urethane, fiberglass, fiberglass composite, ABS plastic and stainless steel. Depending on application, some are designed to be a fully custom addition, while others are replacements for the OE diffuser but are manufactured in an upgraded material like carbon fiber. Some applications are designed to be used with specific exhaust systems. And because each of our rear diffusers is carefully designed for a specific model, regardless of your choice you can count on ease of fitment, and an appearance that will command attention and perfectly complement your vehicle’s styling.