Y-pipe or cat?
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Senior Member
Joined: Jan 2004
Posts: 920
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From: Belchertown MA
Car: 1988 Pontiac Firebird
Engine: 2.8 Lt
Transmission: 5 Spd
Y-pipe or cat?
Hey guys, any of you with 2.8s notice how loud it is in the front, on the passenger when you accelerate or just idling? Espeically if you are outside and standing by that side? My exhuast system is fine with now leaks, just seems loud and kinda tinny, this normal?
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Joined: Nov 2003
Posts: 1,965
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From: Philly
Car: 85 firebird
Engine: Pos 2.8 pulled and replaced with a 350 tpi motor converted to carb.
Transmission: 700r4, vette servo,shift kit, hayden 15"x8" trans cooler.
uhm , i HAVE an exhaust leak and it isnt loud or tinny so i have no clue. You probably have a leak you dont know about.
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Joined: Aug 2003
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From: LeRoy, NY
Car: 2003 Hyundai Tiburon GT
Engine: 2.7L V6
Transmission: 6-speed
Axle/Gears: 4.41
Have you replaced the cat recently? Or anything that connects using a slip joint and clamp? If so, did you remember to use a tailpipe expander?
I also have an exhaust leak. Not one, but two, one on either side of the cat, inlet and outlet. I didn't use a tailpipe expander on the front and probably should on the back. Can't tell if the note is tinny or not, but it sure is loud.
I also have an exhaust leak. Not one, but two, one on either side of the cat, inlet and outlet. I didn't use a tailpipe expander on the front and probably should on the back. Can't tell if the note is tinny or not, but it sure is loud.
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iTrader: (8)
Joined: Aug 2003
Posts: 7,240
Likes: 6
From: LeRoy, NY
Car: 2003 Hyundai Tiburon GT
Engine: 2.7L V6
Transmission: 6-speed
Axle/Gears: 4.41
Don't know anything about the AIR system, other than the fact that you should probably either cap off the line if the cat don't have the fitting, or plug it into the cat if it does.
I have an automatic...
I'll check back tomorrow once I can get access to my Haynes manual.... I might have something then....
I have an automatic...

I'll check back tomorrow once I can get access to my Haynes manual.... I might have something then....
Last edited by Maverick H1L; May 15, 2004 at 11:36 PM.
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