Single 3 Inch to Dual Converter Y Pipe on 88 L98 IROC.......has anyone done?
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Joined: May 2005
Posts: 375
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From: Newark, DE USA
Car: 88 IROC-Z T-Top car with Bose
Engine: L98 5.7
Transmission: 700R4
Axle/Gears: 9 Bolt with 3.27's
Single 3 Inch to Dual Converter Y Pipe on 88 L98 IROC.......has anyone done?
Has anyone done this conversion? I tried to go from a stock dual cat y pipe to stock one 3 inch system on a 1992 B4C and it didn't fit using the dual cat manifolds. Just wanted to see what needs to modified before I tear into the car.
Last edited by Rumblin70SS; Sep 20, 2011 at 02:32 PM.
Joined: Dec 2005
Posts: 6,499
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From: Macon, GA
Car: 1992 Camaro RS
Engine: Vortec headed 355, xe262
Transmission: T56
Axle/Gears: 9-bolt 3.70
Re: Single 3 Inch to Dual Converter Y Pipe on 88 L98 IROC.......has anyone done?
You're basically gonna need a custom pipe from the driver's side header to the other cat, and then y it back into the 3 inch catback. If your state's emissions laws allow it, I would convert to a single cat setup and call it a day. There is ZERO aftermarket support for the dual-cat setup.
Joined: Oct 2001
Posts: 12,217
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Single 3 Inch to Dual Converter Y Pipe on 88 L98 IROC.......has anyone done?
here is the dual setup. Pricey 4 sure.
http://www.summitracing.com/parts/MPE-36479/?rtype=10
http://www.summitracing.com/parts/MPE-36479/?rtype=10
Thread Starter
Member
Joined: May 2005
Posts: 375
Likes: 0
From: Newark, DE USA
Car: 88 IROC-Z T-Top car with Bose
Engine: L98 5.7
Transmission: 700R4
Axle/Gears: 9 Bolt with 3.27's
Re: Single 3 Inch to Dual Converter Y Pipe on 88 L98 IROC.......has anyone done?
Here's the one I was thinking of using.....definitely a little cheaper and I used one on a previous third gen.
http://m.summitracing.com/search?keyword=Catco%204153
Just not sure if it will fit. Didn't dual cat cars have a different hump in the floorpan?
http://m.summitracing.com/search?keyword=Catco%204153
Just not sure if it will fit. Didn't dual cat cars have a different hump in the floorpan?
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