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  #1  
Old 06-13-2003, 12:29 PM
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S14Kyle S14Kyle is offline
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Question Quick HP/Exhaust Question

Hey guys, I heard something a while ago and I was thinking...

Well I heard that if you put those 3" catback exhausts on your car you lose horsepower, because of back pressure and what-not.

Is this true? I definately don't want to lose horsepower...
I know engines have to be balanced, so would it still be balanced if u had a huge intake and huge exhaust?
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Old 06-13-2003, 01:25 PM
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why would you want a 3"exaust on a n\a car yes you will loose power beacsuer of wat u said using backpressure, get 2 1\2" piping i dont think putting a big intake will balance out the car..


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Old 06-13-2003, 01:29 PM
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ahh no you will def gain hp, the stock piping sucks. the freer the air is flowing in and out of the car, the more hp you will have. a full cai and cae along with a header will rock major ass.

they make catbacks for n/a, and some for turbo. you have to research to make sure you are getting the right one... some are ONLY for turbo
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Old 06-13-2003, 02:18 PM
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yer the 3" one on a NA MIGHT give u 5hp.... but this is at peake or after and you WILL loose some low end power...especially torque...

just get the smaller sized ones, 60mm... Apexi makes the N1 in 60mm I believe... that would be a very good improvement.
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Old 06-13-2003, 02:43 PM
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yes, don't get an 80mm, those are only for turbos.

get 60mm or close to it. the hks i have coming in the mail is 65mm.
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Old 06-16-2003, 03:14 PM
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another thing to keep in mind: if you buy an exhaust from Pep Boys or other such cheap-o palace, you probably will end up losing hp since those things are just made for looks and for sound.
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