Built for Function.

All of our diffusers have been put to the test on tracks all over the world, including the Texas Mile, FL2k Drag Strips, Nurburgring, Laguna Seca and more. Our customers were pleased to see faster lap times, better stability and improved downforce from the Difflow diffusers and products.

Genuine Materials.

Our rear diffusers are made out of aircraft grade aluminum to handle curb rash, track abuse and exhaust temperatures. Diffusers are powdercoated black to maximize longevity. Why pay thousands of dollars for a carbon fiber rear diffuser when 75% of it is hidden under the car anyway?

Quality Workmanship.

We are the first and only company out there that strictly specializes in diffusers. Our 30+ years experience in racing and aerodynamic part fabrication puts us ahead of the competition. Everything is made in the USA with thousands of happy customers all over the world. Order today!


Difflow has been making functional, durable and stylish rear diffusers for more than 7 years! Our customers love to brag about improved lap times and increased high speed stability. Our diffusers are built from aircraft grade aluminum to handle curb rash and track abuse. If you’re looking to beef up the rear end of your car… look no further. Purchase a Difflow Diffuser today!