Do the '98 have ypipe or I pipe???

[BlueMuscle]

What type of Dynomax will my friend able to purchase? Inlet/outlet will be 2 1/4 but will it be offsset/offset?????

[black98V6]

have you checked the dynomax site.. that inlet size sounds a little small.. alot of guys on here get the LT1 I-pipe.. your friend will need an exhaust shop to put it on as he will proably need and adapter but it should work fine..

[BlueMuscle]

Can he just make it TRUE DUALS....each pipe coming from the header to a cat to a muffler that goes to the rear tailpipe????

[triad]

I have seen headers like this that run 2 cat's into a Y-pipe. Was around a 1000 bucks though...and it looked restrictive running into that Y-pipe

[black98V6]

true duals can be done but it's hard, expensive and gains are negligible.. or he may even loose power.... I mean LS1's run a single piple and those things are fast...

[ April 05, 2002: Message edited by: black98V6 ]</p>

[RacerJ]

<blockquote>quote:</font><hr>Originally posted by black98V6:
LS1's run a single piple and those things are fast...

[ April 05, 2002: Message edited by: black98V6 ]<hr></blockquote>

Yep, the new SSs are fast enough to take out a Corvette. :D [img]graemlins/burnout.gif[/img]

[AZ3.8Camaro]

BlueMuscle to answer your original question (in the topic) you have both, the y pipe is what connects the manifolds to the cat, and the I pipe connects the cat to the muffler.