For poeple with aftermarket exhaust system

[JonathanPrem]

Has anyone noticed a increase in RPM in idle after they installed a aftermarket exhaust.

[Mikey178]

I haven't noticed a change at all in RPM. All my piping is 2.5" and from behind the cats, its straight to the muffler and out back, no resonators.

[wildlifekid]

NOPE no noticeable change in RPM's... Other than the exhaust note is a lot better and deeper...

[W O T]

No, shouldnt change

[JonathanPrem]

Weird... I was getting my ECU flashed and my installer told me that since I have a high performance the computer is pushing out more air ,which makes the RPM Increase. I even tried to lower threw the computer program and it successfully works but when i unplug the pc the computer from the R50 makes it go back up.

Whats your idle when your car is warmed and cold

[korbeano89]

flomaster 40 and mine never changed its about 1000 rpms when its cold start up and 650 700 rpms warm,.,.,., how high is yours at idle?

[JonathanPrem]

before i flashed my system it was 1000 going really slowly to 900-800 rpm. Now its 600-700RPM after its warmed.

[korbeano89]

that sounds about right it just might be louder than your old exhaust and it may seem to be at a higher rpm,, idk

[Pwnin O'Brien]

Proper idle RPM's are 750 RPM's (+/- 50 RPM's)

[KyooX4]

Yeah that's about where mine is at.

[korbeano89]

that sounds about right it just might be louder than your old exhaust and it may seem to be at a higher rpm,, idk

actually my idle when i first start it up is like 1200 rpms for like 4 mins and then its like 700

[slickroger]

thats how mine is but im having trouble with my TPS sensor