orn

anyone know how much bhp gain i can get get removeing my cat on my civic vti and the best way 2 do it?

stevecockrill

Buy a high flow cat and be environmentally responsible. Test pipes are ok for track use, but you can get the same performance from a high flow cat.

That'd be the absolute last thing I'd do if I were you, especially if you are OBDII with 2 O2 sensors.......

Steve

Civichatch972

I have had my hollowed out cat for about 3 years now , when first it was on my stock dx motor, and it helped out a little in top end, but then I sucked water through my intake and then got a ZC(sohc vtec) and blew that one.

Finally now I have a b18c1 swap and can tell pretty good on how much it helps in the highway.

It may make your exhaust sound a louder and a little raspy and it losses your back pressure and depending on what your car is used for may be good or bad in some cases.

kingpen

Leave it on

Zeus Zore

not much !!.. dont do it.. they are biuldt 2 drive with it !!..
even on other cars seen loss in power from removing it !..

delslow94

better off with a high flow cat. but if you like killing little animals and poisoning the air then remove it

deepnite

the cat. offers u the necessary back preasure for low to mid. range power