There was an 87 IROC (350 LT1) for sale by me that had straight pipes. I test drove it and it wasent incrediable loud... Totally road legal no problem. I looked underneath, nothing, just fricken piping, then when it got to the rear the pipes came together and did a bunch of loops and twists separated again and came out in 2 different pipes. Anyone ever seen this?

i've seen this a couple times, not a big fan, especailly if they went to all that trouble to but an LT1 in it

sure it was an LT1??

Yeah, did they do an engine swap into the 87? No fbody before 92 got an LT1 unless there was a swap done. And, the exhaust is most likely custom made. Is it true duals or is it the basic stock set up?

No no, it was a swap . But check this, it had the TPI unit. My friend Mike told me it's a bitch to use the TPI on a LT1 (to get the bolt holes to line up. It was 2 pipes, one coming from each exhaust manifold. I dunno, it sounded cool.

umm... would be a little weird because the water neck and the dist hole. They make a super ram for the LT1 so you could put a TPI system on an LT1 engine. Just get the super ram base. Now thats a swap that I havent seen.

I'm not sure, the guy didn't say. All i know, is it was a TPI sitting on top of what he said was an LT1.

sounds like you need to get some block numbers....

Yeah sounds like its probably an old 305 he is trying to pass off as an LT1.

Well, you could be able to tell by looking for a the front water neck and a dist. If there is neither where they should be, then its what I described as using the super ram for the LT1 and putting on TPI.