IS F (2008-2014) Discussion topics related to the IS F model

Those with aftermarket exhaust.....

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Old 09-18-15, 10:58 AM
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737NG
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Default Those with aftermarket exhaust.....

I have a question for you guys with aftermarket exhaust (particurly JoeZ and Borla) I was wondering after you installed the exhaust do you now get increased exhaust fume smells in the cabin when the windows or moonroof is open? When I had my 350(F-sport exhaust) I couldn't cruise with the moonroof open without filling the cabin up with fumes.
Old 09-18-15, 11:02 AM
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Justind27
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Joez- No fumes I'm even muffler deleted via piping and tips
Old 09-18-15, 11:06 AM
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ModInJapan
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With my Joe-z exhaust, I did not notice any gas smells but once I went headers I did.

-Josh (jlee@modinjapan.com)
Old 09-18-15, 11:10 AM
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737NG
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Thats excellent news, This is why I havent pulled the trigger yet. I can't wait for more owners to chime in. Thanks.
Old 09-18-15, 11:15 AM
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streetx
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Joe Z, no fumes

you should have no issues if the exhaust is installed correctly and dont have leaks
Old 09-18-15, 11:23 AM
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flowrider
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Originally Posted by streetx
you should have no issues if the exhaust is installed correctly and dont have leaks
This.

Lou
Old 09-18-15, 11:26 AM
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itsmike177
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JoeZ. as long as the primary cats are present, no smells with any aftermarket exhaust.
Old 09-18-15, 02:27 PM
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ihadboost
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Originally Posted by flowrider
This.

Lou
+1. PPE headers and Exhaust - I have never once smelled any fumes in the cabin.
Old 09-18-15, 02:27 PM
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M4rk
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Joe-Z & stock headers: no issues.
Old 09-18-15, 02:30 PM
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ZaxF
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Default Those with aftermarket exhaust.....

Only from behind the car or if a breeze blows it in, but it's more of a delectable fuel smell that makes me smile. No cats-Sikky and JoeZ.
Old 09-18-15, 03:32 PM
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mikersoft
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Borla cat back here, and I don't notice any unusual odor

-MIke
Old 09-18-15, 03:38 PM
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PDP180180
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Not with my exhaust either.

As mentioned above, provided you still have the primary cats in place, you won't detect any fuel smells inside the cabin.

If you change your headers and don't add any replacement cats, you're likely to smell fuel.

Hope this helps.
Old 09-18-15, 04:55 PM
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jadeboy
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Borla exhaust - no
PPE Header - yes!
Old 09-18-15, 05:21 PM
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JdSwiper
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Originally Posted by ModInJapan
With my Joe-z exhaust, I did not notice any gas smells but once I went headers I did.

-Josh (jlee@modinjapan.com)
Same here but it's not that bad
Old 09-18-15, 06:48 PM
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cciepunk
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Stock headers with JoeZ, no fumes in the cabin.


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