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Engine/Power - EJ25T (STI and 2006+ WRX) Discussions about the USDM 2006+ WRX and WRX STi 2.5 liter turbo flat-four.

Not a big problem i just need some input

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Old 09-30-2011, 08:19 AM
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Not a big problem i just need some input
Hello Subies owner..
i just bought an exhaust (hks) and i love the sound lol
but i notice that my idle is not the same. when i had my oem exhaust the idle was 800 i think and now that i have the hks exhaust its on 600 or 500.
pls enlighten me subies guru about this issue thanks
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Old 09-30-2011, 08:34 AM
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Do you have a down pipe????

Did you tune for it?????

I dont think just a cat back will affect the idle but you are running less backpressure so this may be the casue.
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Old 09-30-2011, 10:04 AM
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No tune no down pipe..is their anything I could do for putting the idle up? Just wondering
And thanks for the fast reply shayHan27
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Old 09-30-2011, 10:57 AM
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Exhaust parts won't change the idle unless something else got messed up. 700RPM is the normal stock idle for your car.

Thanks
-- Ed
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Old 09-30-2011, 01:38 PM
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Originally Posted by EQ Tuning
Exhaust parts won't change the idle unless something else got messed up. 700RPM is the normal stock idle for your car.

Thanks
-- Ed
really... never done to it yet except for that exhaust.
well when i bought her, she came with an aftermarket air filter(cone style)
and a turbo timer.
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