I've just had a 3" system fitted from the first cat back (2nd cat now gone) and the car seems slower. I'm assuming this is down to a drop in torque due to the decreased back pressure. The question is will I benefit more from a de-cat downpipe to complete the system, or an induction kit? The car is a 97 UK turbo wagon and the only other mod is an atmospehric dumpvalve.

Cheers, Andy.

 

I recommend a de cat down pipe it was the best mod i've done to mine.

 

decat downpipe easily!!

 

Haha! Buttered up the missus and now I'm getting both. Just booked it in for friday.