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

Exhaust Burning Bumper

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Old 07-06-16, 04:00 PM
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2010ISF
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Default Exhaust Burning Bumper

So I recently got the Borla cat back installed with the bazooka upgrade from rr racing and noticed the exhaust might be starting to burn the bumper. The tips on the left side are aligned perfectly but the ones in the right side sit close to the bumper. I made an appointment with an exhaust shop to align the tips on the right side but I noticed that there might be some bubbling or spider web cracking starting to happen around the exhaust on both sides of the bumper. Would the carbon diffusers be a good solution to prevent the paint from melting? I was also planning on getting my car wrapped at the end of summer but now I'm thinking I should do it now if the wrap would be able to withstand the heat coming from the exhaust. Is there anything I could do to stop this from getting any worse? Thanks in advance!

Last edited by 2010ISF; 07-06-16 at 04:09 PM.
Old 07-06-16, 04:25 PM
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I would adjust the tips first before anything. Shouldnt melt the bumper .
Old 07-06-16, 05:04 PM
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Ya I was thinking about that but when I bought my car the bumper was all scratched up and chipped from the previous owner so we had it repainted at a very reputable body shop so I think the repaint doesn't have the heat resistance that oem does. Here's a pic that I have of the tips, idk if anyone can tell if they're angled correctly or not
Attached Thumbnails Exhaust Burning Bumper-image.png  

Last edited by 2010ISF; 07-06-16 at 05:09 PM.
Old 07-06-16, 05:59 PM
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Aw crap I'll have to keep an eye on mine. What are you doing to even the tips? Cut, add, etc? How you enjoying it btw? I'm still cautious driving.
Old 07-06-16, 06:15 PM
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Originally Posted by 2010ISF
Ya I was thinking about that but when I bought my car the bumper was all scratched up and chipped from the previous owner so we had it repainted at a very reputable body shop so I think the repaint doesn't have the heat resistance that oem does. Here's a pic that I have of the tips, idk if anyone can tell if they're angled correctly or not
It looks like the tips on the passenger side are angled down vs the drivers which is more horizontal. Maybe try adjusting the tube directly behind the tips.
Old 07-06-16, 06:48 PM
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Originally Posted by davidcausa
Aw crap I'll have to keep an eye on mine. What are you doing to even the tips? Cut, add, etc? How you enjoying it btw? I'm still cautious driving.
Absolutely LOVE the exhaust!!! Fell in love with my car all over again! The exhaust shop said they might have to adjust the hangers and cut a little bit off the pipe but I'll know Friday when I take it in
Old 07-06-16, 06:50 PM
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Originally Posted by Lmood
It looks like the tips on the passenger side are angled down vs the drivers which is more horizontal. Maybe try adjusting the tube directly behind the tips.
Ya I kinda noticed that too but didn't know which one was normal or not, I'll have to check that out
Old 07-06-16, 07:27 PM
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You can adjust the hangers or slide the slip on connection in more.
Old 07-06-16, 09:23 PM
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I have diffusers on my car to prevent it from hitting the bumper.

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Old 07-06-16, 11:36 PM
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Originally Posted by Meraki Autoworks
I have diffusers on my car to prevent it from hitting the bumper.

-Josh
Ya I'm really leaning towards getting one, but haven't entirely made up my mind yet
Old 07-07-16, 12:45 PM
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Originally Posted by 2010ISF
Ya I'm really leaning towards getting one, but haven't entirely made up my mind yet
But after all the rubbing and stuff, my diffuser is still fine..

-Josh
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Old 07-07-16, 01:08 PM
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Are the exhaust pipes not double walled..... to prevent excessive heat build up?

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Old 07-07-16, 01:58 PM
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yeah they're double walled, but the entire exhaust system only has resonators so there's definitely a lot of heat coming out the rear
Old 07-07-16, 01:59 PM
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Originally Posted by Meraki Autoworks
But after all the rubbing and stuff, my diffuser is still fine..

-Josh
That's good to hear, these diffusers can take a beating then
Old 07-08-16, 12:05 PM
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the burnt bumper just gives the car that 'hardcore " look


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