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1985 IROC Z Camaro

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Old 04-06-2002, 08:22 PM   #1
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1985 IROC Z Camaro


I have a 1985 IROC Z Camaro with the 305 tpi engine. I am wondering what kind of headers/catback exhaust you guys have for ur 1985 Camaros. Everywhere I look I can only find headers that fit 86 - 92. What goin on with that. So guys tell me what kinda headers and CatBack you guys use.

Thanks alot
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Old 04-06-2002, 10:28 PM   #2
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The only difference in the specific models of the Headers is the y-pipe size I believe on how it connects to the cat, so if you're getting headers just order the cheapest ones you can from a specific brand and match the fittings up if you're also getting a cat-back. Be sure that the headers come with a 3" y-pipe.
I would suggest the Hooker, but listen to people's sound clips and decide which you think sounds the best, mine is in my signature and that's with a non-hi flo cat.

Last edited by Mark A Shields; 04-06-2002 at 10:50 PM.
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Old 04-06-2002, 10:42 PM   #3
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Before Mark can plug Hooker cat-backs, I HIGHLY reccomend getting a Flowmaster system. My car was done today and it sounds great. Got a lot of looks driving around. It is loud and very aggressive. Just my 2 cents
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Old 04-07-2002, 11:24 AM   #4
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Car: '89 GTA
Engine: 350
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The 86'-92' cat was different than your 85'. You have a 4-bolt flange-type, where the 86' and later has a slip-fit. If you're changing the entire exhaust, then go ahead and get the headers, cat and cat-back for the 86'.
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Old 04-08-2002, 12:43 PM   #5
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Not to step on anyone's toes but I don't recommend the Flowmaster crossflow system. The Hooker sounds better - I've
had both.
1985 Z28
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Old 04-09-2002, 08:16 PM   #6
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Car: 1985 Iroc-Z
Engine: 1 BA 305 TPI
Transmission: Probuilt 700R4 - 2800 Stall Midwest
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If you want any performance out of a new exhaust, stay away from Flowmaster. Random Technology is the best all around exhaust system. It is a little more expensive but at least it flows.
'85 Iroc-Z 305TPI Pro-Built 700R4; 3.42 gears
Exhaust: Random Technology exhaust, Carsound Cat, SLP headers
Engine: Crane AFPR, March Underdrive Pulleys, Gutted airbox, TPIS airfoil, Accel Supercoil, cap, and rotor.
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Near Future Mods: 383 Stroker with Dart Heads, 234/244 CompCam, '165 ECM conversion, SLP differential

"1985 305TPI Iroc, free, modifications and repairs, about $4000, the look on the face of guys with a 350 when they find out they just got wasted by a 305, PRICELESS"
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Old 04-10-2002, 12:58 AM   #7
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For my 85 Z28 I bought the exhaust, cat and headers for the 86+ camaros' since I didn't want to mess with our bastard year for performance exhaust. All the hangers are the same and I had no problems since I upgraded the entire exhaust system.
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Old 04-10-2002, 01:49 AM   #8
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Car: Red 87 IROC-Z28 T-Top
Engine: 5.7 Tuned Port Injection
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For a stock/near stock 305 even I wouldn't recommend Flowmaster.
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Old 04-10-2002, 01:52 PM   #9
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Somewhat off-topic, but I played Mark's sound clip on the computer at home; my wife, who didn't know what I was doing, asked me how I got a recording of the Camaro on the computer.

Must be a lot of difference between Hooker & Flowmaster...

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