decat pipes on c20xe's

[old_skool]

when i bought the cav the guy before me had butchered it a little (dodgy air filter,decat etc) because of this i haven't been able to tell the difference between standard and modded to compare performance

after fitting a cat to the car for the mot i must say DON'T DO IT IN THE FIRST PLACE i have fitted decat to other cars and seen a improvement but fitting a cat on the car has made a vast improvement smother acceleration and a notable change mid to high range torque

if anyone is thinking of fitting a decat to a redtop try if you can to get a before and after rolling road printout i would love to know if there are any real gains to doing it

[Greig Sri]

I had a de cat pipe on my Cav when I first put it on the road years ago. Only diffrence that I could tell was the noise. Loud as hell with no cat on, so the cat went back a few days later. The pipe was never on long enuf to tell if it made any diffrence to the performance of the car.

Greig

[old_skool]

yeah agreed noise has dropped dramatically the car is now more cavvy less chavvy

after driving it for a about 500miles i have noticed that very low end torque has dropped and mid to high end torque has raised also after doing the cat and lambda i do about 35mpg average instead of the 25mpg average i was getting