trying to find y pipe
Thread Starter
Drifting
Joined: Dec 2012
Posts: 1,504
Likes: 73
From: Georgetown TX
trying to find y pipe
anyone know where I can find new y pipe without pre cats for 1989 with auto trans. I cant seem to find sourse. I am replacing with new main cat and dont want pre cats.
The older c4 y pipe does not have the correct connection to attatch to cat.
The older c4 y pipe does not have the correct connection to attatch to cat.
Drifting
Joined: Jul 2009
Posts: 1,258
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From: Ashland PA
2021 C4 of the Year - Modified Finalist
Thread Starter
Drifting
Joined: Dec 2012
Posts: 1,504
Likes: 73
From: Georgetown TX
Melting Slicks
Joined: Jan 2001
Posts: 2,996
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From: MOORESVILLE NC
Mid-America, Eckler's, Central Corvette use to sell this type of Y-pipe, from exhaust manifold to a Cat. that slides into the Y-pipe were the 2 pipes are wielded together at the end. I bought one 15 years ago so I hope this helps.
Race Director
Joined: Aug 2000
Posts: 11,470
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. I did have a magnaflow super hi-flow (main) cat, so I ended up with an extra main cat. my plans are to sell the flowmaster cat and recoup some of my purchase price. I can tell you, the flowmaster Y-pipe is a quality product.
Last edited by Joe C; Feb 28, 2015 at 08:55 AM.
Team Owner
Joined: Dec 1999
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From: Lacey WA RVN 68-69
NCM Sinkhole Donor
Any competent muffler shop can build a Y-pipe with the proper connections for both the exhaust manifolds and main cat. IIRC, the front of the OEM cat is a slip-fit to the Y-pipe; the rear connection has a 2-bolt flange.
Not wanting the pre-cats might be an issue with a muffler shop. If the pre-cats are on the car now, some shops won't leave them off. Removal of working cats by a shop can bring a federal fine in the 5-figure range.
So ask first!! Otherwise it's simple job for a shop to bend each side to fit, install a O2 sensor bung, and build a Y-flange to connect everything together.
Not wanting the pre-cats might be an issue with a muffler shop. If the pre-cats are on the car now, some shops won't leave them off. Removal of working cats by a shop can bring a federal fine in the 5-figure range.
So ask first!! Otherwise it's simple job for a shop to bend each side to fit, install a O2 sensor bung, and build a Y-flange to connect everything together.
Race Director
Joined: Aug 2000
Posts: 11,470
Likes: 763
Any competent muffler shop can build a Y-pipe with the proper connections for both the exhaust manifolds and main cat. IIRC, the front of the OEM cat is a slip-fit to the Y-pipe; the rear connection has a 2-bolt flange.
Not wanting the pre-cats might be an issue with a muffler shop. If the pre-cats are on the car now, some shops won't leave them off. Removal of working cats by a shop can bring a federal fine in the 5-figure range. So ask first!! Otherwise it's simple job for a shop to bend each side to fit, install a O2 sensor bung, and build a Y-flange to connect everything together.
Not wanting the pre-cats might be an issue with a muffler shop. If the pre-cats are on the car now, some shops won't leave them off. Removal of working cats by a shop can bring a federal fine in the 5-figure range.
So ask first!! Otherwise it's simple job for a shop to bend each side to fit, install a O2 sensor bung, and build a Y-flange to connect everything together.
w/you on the competent shop thing, but with labor rates being what they are, the price of stainless, and the welding thing, I'm not sure any cost savings can be had here. FWIW, I paid $210 (shipped) for the flowmaster system, and I'm hope to sell the new, flowmaster main cat for $50-$75. that should get the net cost of my system in the one-fifty range. I could be wrong here, but I doubt anyone could get a similar Y-pipe, with the same quality, at their local muffler shop for $150. I'm pretty sure you're dead right on any shop removing the pre-cats thing though. just my 2-cents....
