Hey guys,

I found a set of headers for my car (short tubes) that look like they will match up to my stock Y-pipe pretty well, except that the flanges on the pipes (for the stock manifolds) have only 2 bolt holes and the headers' flanges have 3 bold holes. Is there any way i can cut off the 2 bolt flange and weld in a 3 bolt header flange onto the stock Y-pipe? I'd like to do this if at all possible because it would cost me alot more money than i have to have an exhaust shop make me up a new Y-pipe or modify it or whatever they may do.

 

No headers will work with the stock Y pipe. Which is a good thing, b/c the design of the stock Y is utter crap and restrictive.

 

It can be done but Mark is right, the stock piece is that, a piece of crap. To get it modified to fit the headers you probably could have spent the same amount and got a custom Y-pipe fabricated.

 

Ok, thanks... i figured it could be done, and someday i will have a new Y-pipe, but for now i just would like to get them on the car and have almost no money to have a Y-pipe done.

BTW.. is a H.O. Y-pipe any better, since it had the Corvette type exhaust? Cuz thats what i have.

 

The HO is better, and basically what you're looking at is adapting the routing and connection type from the headers to your y-pipe. The headers you're describing sound like Hooker Comp (2460), and if new, they'll have a reducer to bolt to the collector, to which the cut-off and possibly slightly re-routed y-pipe can be welded.

 

Actually, my headers are Hedman Tork-Step shorties... I don't have them in my hands yet, they are in the mail, but they look like they would bolt up exactly were the manifolds do now, but they'd need some header flanges to bolt up. The Summit number is HED-68474 if anyone wants to take a look.

Oh yea, they don't have an O2 sensor hole... I can just put it in the collector, right? or should i put it on the Y-pipe to make life easier?

 

Anyone?

 

I say get a y-pipe.
good luck working with a stock y-pipe, I wouldn't do it.
plus the like mark said the stock Y is a POS.
I put my o2 sensor on the collector, remember you need what is called a "bung" (small $6 part) to make the o2 sensor work.
I used a blow torch to do it.
biker
...on probation

 

They're pretty proud of those things, aren't they? $50 more than 2460's, and no O2 fitting to boot.

If you can believe the picture on the Summit website, they don't look to me like they'd bolt to the y-pipe where the manifolds do. Longer, and at an angle vs. straight down for the manifolds.

 

I like these because i got them for $90 USD and they made ALOT of low end grunt on my friend's Firebird.