HP loss for stock lg4 exhaust
05-14-2003, 02:49 PM
#1
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Car: 83 Z28
Engine: 305 (LG4)
Transmission: THM700R4
Axle/Gears: 10 bolt, 3.23 non-LS
HP loss for stock lg4 exhaust
If you changed the y pipe back on a stock lg4, what would be the expected hp gain? 5-10?
thanks,
thanks,
05-14-2003, 03:49 PM
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Car: 85 iroc z
Engine: LG4 :(
Transmission: 5 speed
I don't have an answer to your question, but wouldn't the stock manifolds be more of a restriction than the y-pipe?
05-14-2003, 04:53 PM
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Car: 1982 Trans Am
Engine: LG4
Transmission: 200C
Axle/Gears: 3:73
the y-pipe back will give you extra ponies with an aftermarket system. A good idea would be to buy a catback first. And if you car has high miles the cat too. A y-pipe is usually bought with headers.
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