# 3" Exhaust installed, popping noises & raised idle..Running Rich?!
**URL:** https://forums.speedlife.net/t/3-exhaust-installed-popping-noises-raised-idle-running-rich/117390
**Category:** SON240sx Automotive
**Created:** [July 31, 2008, 11:52am UTC](https://forums.speedlife.net/t/3-exhaust-installed-popping-noises-raised-idle-running-rich/117390 "2008-07-31T11:52:39Z")
**Posts on this page:** 10
**Page:** 1
### Author:  [@RED\_LINE](https://forums.speedlife.net/u/RED_LINE)
#### Post date: [July 31, 2008, 11:52am UTC](https://forums.speedlife.net/t/3-exhaust-installed-popping-noises-raised-idle-running-rich/117390/1 "2008-07-31T11:52:39Z")
heyy guys, I just got my exhaust installed, it’s off my buddy DubV’s CA powered coupe.
We installed it yesterday on my KAE, from the stock idle of 700rpm with my HKS intake from previously it now rose to 800rpm idle, also when I let off the gas sometimes, it makes some pretty sweet popping sounds from the exhaust also in between shifting at high revs.🆒
I like the popping sounds haha but then again I guess I’m running rich? is there a way to adjust this if I am? since it can effect gas mileage and stuff. Engine-wise I’m just running an HKS intake with the 3" Dual Tip XS Power exhaust. Can I also bring back the idle to 700rpm? is it worth it?:rolleyes:
Thanks.
p.s - future plans are a CA swap:)
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### Author:  [@XSNRGE](https://forums.speedlife.net/u/XSNRGE)
#### Post date: [July 31, 2008, 11:59am UTC](https://forums.speedlife.net/t/3-exhaust-installed-popping-noises-raised-idle-running-rich/117390/2 "2008-07-31T11:59:27Z")
There’s an allen screw on the throttle body, as well as, I believe an 8 or 10mm nut that locks its position. Loosen the nut, then use an allen driver/key to adjust the throttle body’s idle position.
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### Author:  [@simplemind7](https://forums.speedlife.net/u/simplemind7)
#### Post date: [July 31, 2008, 12:07pm UTC](https://forums.speedlife.net/t/3-exhaust-installed-popping-noises-raised-idle-running-rich/117390/3 "2008-07-31T12:07:57Z")
you have a single cam, you’re lucky it’s running that well.
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### Author:  [@RED\_LINE](https://forums.speedlife.net/u/RED_LINE)
#### Post date: [July 31, 2008, 12:40pm UTC](https://forums.speedlife.net/t/3-exhaust-installed-popping-noises-raised-idle-running-rich/117390/4 "2008-07-31T12:40:45Z")
^Ya, it runs pretty strong, it currently has 160,000km.
Wondering if it’s a high compression engine that came out earlier on in 89’.
but if it’s doing what I mentioned, does that still dictate it’s running as well? haha.
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### Author:  [@KoukiS14](https://forums.speedlife.net/u/KoukiS14)
#### Post date: [August 1, 2008, 6:43pm UTC](https://forums.speedlife.net/t/3-exhaust-installed-popping-noises-raised-idle-running-rich/117390/5 "2008-08-01T18:43:30Z")
Your not making much sense.
Your idle went up by 100rpm? How do you even notice that on the stock tach. The popping is probably because the exhaust is more straight through and 3-inch.
Why do you think you are running rich from all this? An exhaust shouldnt affect anything other than sound and performance.
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### Author:  [@alesserfate](https://forums.speedlife.net/u/alesserfate)
#### Post date: [August 1, 2008, 8:41pm UTC](https://forums.speedlife.net/t/3-exhaust-installed-popping-noises-raised-idle-running-rich/117390/6 "2008-08-01T20:41:18Z")
Dude those things are fine dont touch anything on your engine just let it be.
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### Author:  [@RED\_LINE](https://forums.speedlife.net/u/RED_LINE)
#### Post date: [August 2, 2008, 9:55am UTC](https://forums.speedlife.net/t/3-exhaust-installed-popping-noises-raised-idle-running-rich/117390/7 "2008-08-02T09:55:51Z")
Ya, I figured it out, thanks bro.
> [@Predict this score](https://forums.speedlife.net/t/predict-this-score/17877/4):
>
> Your not making much sense.
> Your idle went up by 100rpm? How do you even notice that on the stock tach.
lol, how can you not notice it?!! it’s right there on the tach, read and interpret the lines…
it also went back to 700rpm stock idle all by itself too, readjusted from noticing the change to the flow.
Overall, I’m happy:)
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### Author:  [@dubv](https://forums.speedlife.net/u/dubv)
#### Post date: [August 2, 2008, 10:04am UTC](https://forums.speedlife.net/t/3-exhaust-installed-popping-noises-raised-idle-running-rich/117390/8 "2008-08-02T10:04:46Z")
> [@Predict this score](https://forums.speedlife.net/t/predict-this-score/17877/4):
>
> Your not making much sense.
>
> Your idle went up by 100rpm? How do you even notice that on the stock tach. The popping is probably because the exhaust is more straight through and 3-inch.
>
> Why do you think you are running rich from all this? An exhaust shouldnt affect anything other than sound and performance.
+1 , exactly what i told you G when u bought the exhaust off me.
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### Author:  [@Cal-SoY](https://forums.speedlife.net/u/Cal-SoY)
#### Post date: [August 2, 2008, 10:29am UTC](https://forums.speedlife.net/t/3-exhaust-installed-popping-noises-raised-idle-running-rich/117390/9 "2008-08-02T10:29:38Z")
Oh God… 3" on a stock KAE?
What a ricer.
lol you know i’m kiddin.
i didnt get a new exhaust but i just cut out my smaller resonator on my stock one, and with a hi-flowcat it sounds really good.
prob not as good as aftermarket though.
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### Author:  [@RED\_LINE](https://forums.speedlife.net/u/RED_LINE)
#### Post date: [August 2, 2008, 10:42am UTC](https://forums.speedlife.net/t/3-exhaust-installed-popping-noises-raised-idle-running-rich/117390/10 "2008-08-02T10:42:56Z")
haha, buddyyy!! I haven’t seen you & a couple of the other guys @ CG in awhile, we gotta meet up & I’ll show u how sikk it looks on the hatch! 😃
it’s pretty loud but deep, you’ll see man!