Catless will make that huge of a difference?!?!
Originally Posted by Roman@ESS
We are going to build two systems. The first will be a HFC system that is emissions compliant and will add around 20 CHP to the car while having a very refined sound. The second will be a full catless race system which will make around 25-30 CHP and be a bit more agressive in tone.
This is an early test dyno of our HFC system on stock M3 with stock software.