Exhaust Diameter
10-07-2012, 08:09 PM
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Car: 1994 Z28
Engine: 355 LT1
Transmission: T56
Axle/Gears: 3.42
Exhaust Diameter
Hey would a 1 5/8" primary with 2.5" collectors to a 2.5" y pipe support 300rwhp or should I be looking for 2.5" collectors to a 3" y pipe?
10-07-2012, 08:35 PM
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Car: 92 Z28/86 T/A/98 R/A T/A
Engine: 355,355,LS1
Transmission: T-56,700r4,T-56
Axle/Gears: 3:73,3:42,3:42
Re: Exhaust Diameter
Depends if you are planing on running cats. I would say go for the 3" Y..
10-07-2012, 08:37 PM
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Car: 1994 Z28
Engine: 355 LT1
Transmission: T56
Axle/Gears: 3.42
Re: Exhaust Diameter
No cats. I guess I'll have the exhaust shop chop it at the y and do a 3" at the single.
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