Exhaust improvement question

[88Tsupra]

you can put a dual tip on ur supra thats what im going to do. I saw a dual top exhaust in a super street mag on a mkiv and now i gotta do it to mines it was just to beautiful. and dont worry it wont be loud as long as u dont gut out your cat keep the cat and u keep the noise down

[IHateHacks]

A test pipe is a 3" straight pipe with toyota flanges that replaces the main catalytic convertor.

And he is right, having a stock cat will keep the loudness down, along with the nasty'ness.

You have a non-turbo so unless it was a cali car when it was sold brand new, you don't have a pre-cat, which is another big time restriction on turbo cars.

[zuni]

Originally Posted by IHateHacks

A test pipe is a 3" straight pipe with toyota flanges that replaces the main catalytic convertor.

And he is right, having a stock cat will keep the loudness down, along with the nasty'ness.

You have a non-turbo so unless it was a cali car when it was sold brand new, you don't have a pre-cat, which is another big time restriction on turbo cars.

where is the pre cat located.

[cre]

Originally Posted by zuni

where is the pre cat located.

Pretty much right after the manifold just before the exhaust piping bends under the fire wall.

[zuni]

Originally Posted by cre

Pretty much right after the manifold just before the exhaust piping bends under the fire wall.

on the down pipe