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Side exit exhaust

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Old 03-27-2001, 01:36 PM
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Side exit exhaust

I have a ’91 Formula with the 350. I would like to remove the smog system and CAT. I wold also like to run the exhaust out each side in front of the rear tires. I was figuring on running a pipe from each header back then out the side with a crossover pipe somewhere in the middle. Has anyone tried this and if so how did it work. As for the muffler, I am still unsure of. I think I am going to need to keep the pipes fairly close to the underbody and that doesn’t leave much room for a muffler. I did see some inserts in Summit that go in the collectors from the headers and keep the noise at a reasonable level. Any suggestions or comments would be greatly appreciated.
Old 03-27-2001, 02:32 PM
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Car: 85 IROC
Transmission: 700 r4
I have equal length heddman headers, cherry bombs (sound like crap, but they were on the shelf at the time), and duals on my 85 IROC. I ran the pipes tight as i could to the undercarriage and straight back. The pipes exit in front of the rear tires. It performs good, but I have had some problems with ground clearance at times.

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85 IROC 350 11:1keith blacks,.555lift erson roller cam,1.5 crane roller rockers,edelbrock intake,holley 4150 750dbl pumper, nitrous oxide,full length heddman headers,true dual exhaust, 11"stall converter, 700R4, 3.73 locker
Old 03-27-2001, 06:35 PM
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Ive done it to. ran them off equal length headman headers than out in front of the rear tires I had to make a crossmember so the glass packs would be high enough off the ground. I have napa baffled glass packs, quite restrictive but not too loud.Im going to get cutouts for it though.

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82 Camaro Z28
35 w/4 bolt mains
9.5:1 comppresion
heavily ported 882 heads
gasket matched Torker intake Edelbock Performer 750 carb
Speed pro cam 222 @.05 .447 lift
Edelbrock Flow Pro 1002 air cleaner
Headman headers with straight pipes
Borg Warner T-10
Posi
Fiber glass hood
Another 82 Camaro Z28
Black w/blue pearl w/silver racing stripes
355
Edelbrock Performer intake and 750 carb
Pro Flo 1002 Air cleaner
4 bolt mains
69 camaro heads 64cc
9:1 compression
TH-350 w/stage 2 shift kit
275/60R15 out back
205/60R15 front
Old 03-27-2001, 07:47 PM
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anyone have pictures!!!!

------------------[*]191(3.1)V6 1992 Pontiac Firebird[*]K&N fiter with custom Ram air[*]bosch patinum spark plugs[*]Flowmaster Exhaust w/ 3" tips[*]Pioneer reciver[*]kenwood 4x6's[*]sony xplod 6x9's[*]1 kenwood 12" powered by a 300 watt jenson amp[*]-----------[*]Future Engine Mods[*] CCS Custom Computer Chip[*]Underdrive Pulleys[*]Free Flow Cat[*] Crane Camshaft,Roller Rockers, and Valve Springs[*]------------[*]Furture Body Interior Mods[*]4th Gen Trans AM Seats[*]4th Gen Trans AM Wing[*]Ram Air hood[*]1 1/2 Din Pioneer Reciver[*]Alpine 6 1/2 Componets[*]Infinity 6x9's[*]Alpine 120x4 V12 amp[*]1 JL Audio 12w6[*] Rockford 500a2 www.geocities.com/my_92firebird
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