Stu's '85 IROC

iTrader: (2)

I am looking into buying a set of Hooker Headers part # 2460-1HKR for my '85 IROC with a TPI 305 in it. I am pretty sure they will not bolt to my factory y-pipe- right? Does anyone know where I can get one that will work cheap (if the factory one won't work)? Any advice will be appreciated. Thanks in advance.

Thirdgen89GTA

iTrader: (5)

2460's don't' come with a Y-pipe, and nothing is pre-made, you need to have an exhaust shop fabricate a Y-pipe for you.

The 2055's DO come with a Y-pipe but are more expensive (because they are better, and they come with the Y.

InfernalVortex

iTrader: (4)

Well to be completely fair the 2460's are made with heavier gauge steel and are technically slightly superior. But the 2055's have that awesome y-pipe, even though one side necks it down pretty far. 2460's have more potential if you can build yourself a decent y-pipe. I thought Hooker sold a y-pipe for it separately, but it wasnt a very good one. The 2055 y-pipe is much, much better.

Thirdgen89GTA

iTrader: (5)

Smaller inner diameter because of the heavier gauge steel. They flow less than the 2055s do.

TreeFiddy

I believe this is the 2460 y-pipe:

http://www.summitracing.com/parts/HOK-16767HKR/

86T/A_Ram_Air

I have the 2055's and they fit pretty nice, but I do have to say the passenger side was a royal PITA. I managed to get it in without jacking the motor up. My main reason for choosing the 2055's was that in my state I need to pass emissions and the 2055's retains all of the smog equipment

hdis2002

iTrader: (1)

I put a set of 2460s on my 87. I ordered the matching Y pipe. The problem I ran into was the Y pipe hit the subframe connectors. I had to take it to a muffler shop to get it modified. They cut the end off to shorten it and found something interesting. The inside of the Y pipe was about half the diameter it should be. This was caused by the manufacturer not building the collector correctly. If I had used the Y as supplied, I would have had a pretty bad restriction. The muffler shop cut the restricted area off and fixed the problem.

Steve

InfernalVortex

iTrader: (4)

Now that is interesting... Makes a lot of sense too.