RicksIroc86

hey i just bought a 91 rs LO3.

it has what looks to be like the cat was removed along with everything after, it has a glass back in place of the cat and just ends there.that mother****er is loud my ears ring after i drive it.

a lot of people have told me the car is running a lot slower because of the exaust and that it run ALOT better and faster if i got a hiflow cat and exaust. so my question is is that true?

it is a stockLO3 as far as i know with just an open elemnt air filter pretty much.

Darkshot

iTrader: (4)

You would notice little, if any performance difference with a full catback and cat on there. You might be down on torque a bit, but it won't seriously effect the way the engine runs.

Don't be fooled...the LO3 is by no means made to be a performance engine.

RicksIroc86

haha yes yes i know but a guy told me that having no exaust pretty much cuts the backpressure of the motor so much that what little power it does have is gone

punkdude908

i'll agree with that- when i cut my old muffler off right behind the cat, the car did seem to lag a little. when i got my new exhaust system, there was definitely a small, but noticeable difference.