Need Help with OBX Exhaust on 91
Need Help with OBX Exhaust on 91
Purchased an OBX exhausy off ebay the other day. Direct fir for a 1991 Camaro. 3" pipe with 3.5" tips. The converter flange is to large. it has an all stock 5 liter. Are we missing something? Is it just the wrong system?
http://www.ebay.com/itm/OBX-Dual-EXHAUST-SYSTEM-83-92-Chevy-Camaro-5-0L-5-7L-/161004227618?pt=Motors_Car_Truck_Parts_Accessories&fits=Model%3ACamaro&hash=item257c998c22&vxp=mtr#ht_1785wt_1018Thanks
http://www.ebay.com/itm/OBX-Dual-EXHAUST-SYSTEM-83-92-Chevy-Camaro-5-0L-5-7L-/161004227618?pt=Motors_Car_Truck_Parts_Accessories&fits=Model%3ACamaro&hash=item257c998c22&vxp=mtr#ht_1785wt_1018Thanks
Senior Member
iTrader: (7)
Joined: Jan 2012
Posts: 586
Likes: 2
From: Romney, WV
Car: 89 IROC Z/88 IROC Vert
Engine: 350c.i./305c.i.
Transmission: 700R4/T-56
Axle/Gears: 3.42/4.10
Re: Need Help with OBX Exhaust on 91
Purchased an OBX exhausy off ebay the other day. Direct fir for a 1991 Camaro. 3" pipe with 3.5" tips. The converter flange is to large. it has an all stock 5 liter. Are we missing something? Is it just the wrong system? OBX Dual Exhaust System 83 92 Chevy Camaro 5 0L 5 7L | eBay Thanks
Junior Member
iTrader: (1)
Joined: May 2012
Posts: 62
Likes: 0
From: Triad, NC
Car: 89 RS
Engine: Stock L03
Transmission: Stock T5
Axle/Gears: Stock, Too high
Re: Need Help with OBX Exhaust on 91
Probably made for a 3" cat. Get one, then realize the inlet to the cat is wrong, remedy that with a better y-pipe, at that point you may as well go all in and put headers on. Or follow the more affordable but less enjoyable advice above.
Supreme Member
Joined: Nov 2010
Posts: 1,074
Likes: 9
From: VA
Car: 88 camaro irocz
Engine: l98 tpi
Transmission: 700r4
Axle/Gears: 2.77
Re: Need Help with OBX Exhaust on 91
the obx is great exhaust but you do need larger than stock cat ypipe . or like mentioned above cut an change the flange . i think you'll enjoy the sound after you get threw this one small problem .
Re: Need Help with OBX Exhaust on 91
One small problem? Well we got lucky and had a friend that did an exhaust on a camaro and he had the small pipe for the converter from 2 1/2 to 3. Now the rear passenger hanger is not of factory location and no matter how tight I made the bands the pipes just slip apart. You're right that OBX is Crap. Total sorry I let my son buy it!
Senior Member
iTrader: (7)
Joined: Jan 2012
Posts: 586
Likes: 2
From: Romney, WV
Car: 89 IROC Z/88 IROC Vert
Engine: 350c.i./305c.i.
Transmission: 700R4/T-56
Axle/Gears: 3.42/4.10
Re: Need Help with OBX Exhaust on 91
If you could go back in time, I would've recommended buying the hooker 3inch catback system for our cars. It's in the same ballpark in price, fits nice and sounds good.
Senior Member
iTrader: (7)
Joined: Jan 2012
Posts: 586
Likes: 2
From: Romney, WV
Car: 89 IROC Z/88 IROC Vert
Engine: 350c.i./305c.i.
Transmission: 700R4/T-56
Axle/Gears: 3.42/4.10
Re: Need Help with OBX Exhaust on 91
They have a couple different styles. You have to find the correct system for your application but this will give you an idea. http://m.summitracing.com/parts/hok-16823hkr
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Re: Need Help with OBX Exhaust on 91
Well after running to autozone for stainless u bolts and making a hanger we got it installed. Just have to adjust the passenger side tail pipe as I failed to notice that it was slightly crooked. Son not happy with the sound. We watched freaky's video on utube too before we purchased it. Oh well atleast it looksnice!
Member
iTrader: (2)
Joined: Jul 2010
Posts: 399
Likes: 2
From: Victoria, BC
Car: 89 Firebird Formula
Engine: 3500T
Transmission: T56
Axle/Gears: 9 bolt/4.11
Re: Need Help with OBX Exhaust on 91
Honestly I wouldn't consider an incorrect cat flange a big deal, esp. since headers/y-pipe/3" cat is probably needed to take advantage of a 3" cat-back. If you're looking for a nice sound, the dynomax 2.5" is quite nice IMO. There's no way you need a 3" cat-back for performance with stock headers. I would actually be upset if I got a nice 3" cat-back and found that it was restricted with a 2.5" cat flange.
Member
iTrader: (1)
Joined: Jun 2005
Posts: 307
Likes: 0
From: east peoria,il
Car: 91 z28, 07 trailblazer ss
Engine: lt1lt4 hot cam,ls2
Transmission: t56
Axle/Gears: 3.73
Re: Need Help with OBX Exhaust on 91
Hmm i had a local shop puy my obx on and run a pipe from my y pipe for 160 altogether. im picking it up tomorrow also running stainless shorty headers. the exhaust looks like a good quality one. i will hear it tomorrow. also with a lt1 it should sound mean. ive ran the flowmaster american thunder cat back and thiught it was too quiet
Member
iTrader: (1)
Joined: Jun 2005
Posts: 307
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From: east peoria,il
Car: 91 z28, 07 trailblazer ss
Engine: lt1lt4 hot cam,ls2
Transmission: t56
Axle/Gears: 3.73
Re: Need Help with OBX Exhaust on 91
I plan on getting a good video up of the exhaust running on a lift at work. I read a post of a member in the netherlands that is running a obx on a ta and compared it to a magnaflow. his car looked like ut had some work done.
Member
iTrader: (1)
Joined: Jun 2005
Posts: 307
Likes: 0
From: east peoria,il
Car: 91 z28, 07 trailblazer ss
Engine: lt1lt4 hot cam,ls2
Transmission: t56
Axle/Gears: 3.73
Re: Need Help with OBX Exhaust on 91
My lt1 t56 swap will be complete this weekend and I will post pics of the exhaust and try to load video of it. Its sound mean.I will post soon
Member
iTrader: (2)
Joined: Jul 2010
Posts: 399
Likes: 2
From: Victoria, BC
Car: 89 Firebird Formula
Engine: 3500T
Transmission: T56
Axle/Gears: 9 bolt/4.11
Re: Need Help with OBX Exhaust on 91
I got the quad-tipped 4th gen version of this exhaust and I really like it. Fitment was great, the supplied clamps do suck though, and I like the sound. Just had to make a pipe to connect my downpipe to it which was no big deal.
I was amazed how quiet it made the car vs open downpipe considering the muffler is more or less just a glasspack with a bend in the middle.
I was amazed how quiet it made the car vs open downpipe considering the muffler is more or less just a glasspack with a bend in the middle.
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