Did the stock exhaust on a 5.0 TBI have mandrel bends at the rear tailpipes that come out? If anyone can verify please let me know.
POZ

 

The stock pipes aren't crush bent if that's what you're asking. They aren't quite aftermarket mandrel perfect, but pretty close.

Both of these systems are OEM, the one on the left is 1986, the right is 1991.

 

can you see any numbers or letters on the exhaust?

the one on the left is similar to mine...

Thanks!
POZ

 

There were part numbers stamped in the pipes and muffler. But since the picture is three years old, and the rusted system went in the garbage, and the other was on the car when I sold it, I can't help you. Walker/Dynomax sells what is pretty much an exact replacement. Any decent parts stores should be able to get Walker exhaust parts. For genuine GM the best buy is still going to be your local GM dealership, assuming they can still get the original equipment.

 

Steve, what's up? What are you trying to do here?
Mark

 

I believe the Muffler would probably still be available since they used it on 4th gens too, At least they are similar enough that the 4th gen muffler will work. I had one on my 87 for a while with the Formula/Trans Am tips.


John

 

What I am trying to do is keep my Firebird as original as possible. Any work done on my car will be done with an original GM part (from the era) for as long as I can.

POZ

 

The muffler from my 91 Formula, and the muffler from 96'ish T/A were the same.

 

Does the 96 have stamping on it with "GM" and numbers?

thanks...

 

Yeah, all the stamped markings and part number were identical.

 

sweet. Im gonna get it welded up soon...

 

Talk to Kevin aka Gearhead on our board.

He has my original 91 GTA exhaust under his car now. It was almost perfect shape.

Would be a good close one for u too see.

later
Jeremy

 

If you have a 1989 + car keep in mind that the SLP Exhaust on TPI cars would also be proper as it was an over the counter dealer installed part. So at some shows like the Trans Am nationals it would still be considered "Stock"... THat would also include the larger SLP Runners & Headers...

Other shows they may deduct you, but since it was offered by a dealer I am not sure how they could...

John