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Uber Garage Custom 3" Circuit Special NA exhaust

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Old 02-08-2010, 12:16 PM
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Don't think it will kill you to at least put a race muffler on!
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Old 02-08-2010, 12:47 PM
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Originally Posted by ap1_tot,Feb 8 2010, 03:18 AM
It won't be that beneficial when used in an F20? I always thought aftermarket exhaust/Intake parts would be interchangeable between the 2 engines.
I'm not saying it won't be beneficial but it seems like the higher displacement motors need just a little larger piping to breathe better.
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Old 02-08-2010, 01:08 PM
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i have seen really good gains on 1.6 liter engines going from a 2.5 to 3 inch exhaust.. a standard f20c would for sure benefit from a 3inch exhaust.
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Old 02-10-2010, 04:28 AM
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did u lose any power or torque down low in the rev range, or were there gains thru out the rev range just out of interest ?

was the max power increase only slight or a massive difference ?
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Old 02-10-2010, 06:00 PM
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damn that sounds ****** sick!

props
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Old 02-23-2010, 07:46 AM
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Originally Posted by sjs0433,Feb 8 2010, 01:47 PM
I'm not saying it won't be beneficial but it seems like the higher displacement motors need just a little larger piping to breathe better.
agreed.
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Old 02-24-2010, 07:04 AM
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Originally Posted by ap1_tot,Feb 23 2010, 08:46 AM
agreed.
We actually use 3inch exhausts on our K20a race car too with great results. Its very common for most K20 cars to have a 70mm or 3inch exhaust on those running cams and some mild upgrades even.

Our 2.2L F22 Time Attack S2000 is running a 3inch this season as well. We'll have pics up later this week im hoping.
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Old 02-24-2010, 03:38 PM
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love the exhaust
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Old 02-24-2010, 05:56 PM
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makes me want to try a 3inch exhaust
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Old 02-27-2010, 07:33 PM
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i built a 3" for my setup, ap1, lost a little in the low end but picked up 14whp peak, mostly 8-10whp from the entire midrange on
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