Need Help: Can't seem to get Silencer Off
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From: SF Bay Area
Car Info: '02 WRX wagon
Im not sure how much back pressure could really be built up. This is the very last part before it leaves out the exhaust. If there was any need for back pressure, i doubt leaving the silencer could help.
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From: Mount Vernon, Washington
Car Info: 2002 WRX
do you still have cats?
stock headers?
If you have ^^ then you should be fine leaving the silencer out.
What size diameter is the hole in the silencer? Looks smaller than 2.5"
stock headers?
If you have ^^ then you should be fine leaving the silencer out.
What size diameter is the hole in the silencer? Looks smaller than 2.5"
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From: Sacramento CA
Car Info: 02 Impreza WRX sedan
Origami posted by darkonion
I read somewhere that NA should have piping no bigger than 2.5". Something about how the engine actually needs some back pressure to produce power. Somebody correct me if I am wrong.
I read somewhere that NA should have piping no bigger than 2.5". Something about how the engine actually needs some back pressure to produce power. Somebody correct me if I am wrong.
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From: Fremont, CA
Car Info: 1997 Impreza, 2014 BRZ
Originally Posted by Jakes02
do you still have cats?
stock headers?
If you have ^^ then you should be fine leaving the silencer out.
What size diameter is the hole in the silencer? Looks smaller than 2.5"
stock headers?
If you have ^^ then you should be fine leaving the silencer out.
What size diameter is the hole in the silencer? Looks smaller than 2.5"
Thread Starter
Chicks dig me. April Fool's!
iTrader: (31)
Joined: Apr 2006
Posts: 10,989
From: Fremont, CA
Car Info: 1997 Impreza, 2014 BRZ
Originally Posted by Wingless Wonder
Not true about back pressure increasing torque in NA engines, but going larger than 2.5" for a mildly modified NA engine is probably overkill. There's a point of diminishing returns of cost and weight because NA simply won't move enough air.
I see, but I should be fine right? I don't want to say what I paid, but I was really happy with the price, especially since it was essentially new.
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