Couple of exhaust and header questions
09-25-2002, 09:12 PM
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Couple of exhaust and header questions
Is $450 for header installation rip off?
How hard is it to tighten header bolts yourself, does it require removal of components or engine lift?
How much power is the following worth over a stock 88 350 tpi
Complete custom bent 3inch exhaust pipes including custom y pipe, and magnaflow muffler. Also are all those parts, pipe bending, and installation labor worth about $580?
How hard is it to tighten header bolts yourself, does it require removal of components or engine lift?
How much power is the following worth over a stock 88 350 tpi
Complete custom bent 3inch exhaust pipes including custom y pipe, and magnaflow muffler. Also are all those parts, pipe bending, and installation labor worth about $580?
09-25-2002, 09:25 PM
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
To me, it would be a rip-off and wouldn't be worth it.
All of the parts, from headers to y-pipe to cat to cat-back can be purchased as bolt-ons. Okay, there's no such thing as a "bolt-on", but the issues that come up requiring modification will be minor.
Headers: $210-$350 with y-pipe.
Direct-fit high-flow cat: $120
3" performance cat-back w/muffler: $250-400.
All of these pipes will be mandrel-bent, unlike the typical "custom" exhaust systems.
Installation of the above requires a hard flat surface & 4 jack stands, common hand tools, and (optional) something to cut apart the old system for ease of removal (such as a Saws-all).
Power gain will be ~10-20%, depending upon your other mods. Probably closer to the lower end, because the TPI systems were the best the factory made for 3rd gens.
All of the parts, from headers to y-pipe to cat to cat-back can be purchased as bolt-ons. Okay, there's no such thing as a "bolt-on", but the issues that come up requiring modification will be minor.
Headers: $210-$350 with y-pipe.
Direct-fit high-flow cat: $120
3" performance cat-back w/muffler: $250-400.
All of these pipes will be mandrel-bent, unlike the typical "custom" exhaust systems.
Installation of the above requires a hard flat surface & 4 jack stands, common hand tools, and (optional) something to cut apart the old system for ease of removal (such as a Saws-all).
Power gain will be ~10-20%, depending upon your other mods. Probably closer to the lower end, because the TPI systems were the best the factory made for 3rd gens.
09-26-2002, 08:46 AM
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The header bolts are not all that hard to tighten, it is just getting the wrench on them (forget about a socket, no way it'll fit), and then tightening the bolts with the awkward angle you have to put your wrist in.
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09-26-2002, 11:35 PM
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Car: '85 Z28
Engine: 305
Transmission: WC T5, 3.23 posi
I'd reccomend doing it yourself. It's not very hard, and it's $400 worth of other mods you can do to the car. Also if you do it, get Stage 8 locking headers bolts, they are worth the money. You can use an allen wrench to tighten them which is especially helpful.
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