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

Real Exhaust - Will carbon diffuser be ok?

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Old 11-17-14, 12:29 PM
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PDP180180
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Default Real Exhaust - Will carbon diffuser be ok?

Hi Guys,

So I got my Arkym carbon rear diffuser installed today.

Next up for me will be a true quad exhaust system, which replaces the fake tips.

My only concern being the heat the real tips will generate.

Does anyone have a real exhaust with a carbon diffuser installed??

Cheers.


Peter
Old 11-17-14, 04:18 PM
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Justind27
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Nah it's got great physical properties for heat and cold hence why nasa, boeing, military use it for lots of different things. Only thing with unpainted cfrp is uv rays break down the epoxy causing the yellowish clear tint to it. Thermal properties of carbon fiber are amazing, I just got info on several classes to take on composite manufacturing, partially through my work (boeing).
Old 11-17-14, 04:29 PM
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digger08
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Just make sure that the exhaust tips you replace it with are double walled - there is an air pocket between the exhaust side and the exterior side that keeps running temps lower....and carbon fiber will discolor and burn from the heat if touching the diffuser, so your worry is real....its called heat damage, due to the epoxies in the hard coat.


Joe Z and ISS Forged are double walled. The clearance is very close on these aftermarket exhausts, once you add diffusers.



Digger08

Last edited by digger08; 11-17-14 at 04:35 PM.
Old 11-17-14, 07:16 PM
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Gymkata
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A true quad exhaust system huh? interesting...sorry I can't answer your question, I just have a fake Borla catback running through fake exhaust diffusers. Just kidding, I know what you are trying to say.

Last edited by Gymkata; 11-18-14 at 07:20 PM.
Old 11-17-14, 07:49 PM
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you'll be fine, members on here run iss forged with toms diffusers, no problem.
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Old 11-17-14, 11:35 PM
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Thanks guys.

We have a firm over here that sell a carbon fibre cleaner, that also protects from UV etc.

Firm is called Kleers.

It's not cheap, but with all the carbon bits I'm running, think I'll give it a go.

Here's a link for info purposes:
http://www.kleers.com/exterior-products/the-carbon-uv-protector

I'll check with the manufacturer if they are double walled as well.

Just didn't want my expensive diffuser getting ruined!

Thanks again for the help.

Cheers.

Peter
Old 11-18-14, 01:28 AM
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I had a friend with a is350, he took his carbon fiber pieces to a body shop and had them clear coat everything. They looked very good in person especially through a lot of wear and tear. Perhaps, you can look into this as well. He mentioned the factory did provide a clearcloat already but he just wanted to double up especially here in Florida. Just a thought...
Old 11-18-14, 03:11 AM
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Originally Posted by PDP180180
Thanks guys.

We have a firm over here that sell a carbon fibre cleaner, that also protects from UV etc.

Firm is called Kleers.

It's not cheap, but with all the carbon bits I'm running, think I'll give it a go.

Here's a link for info purposes:
http://www.kleers.com/exterior-produ...n-uv-protector

I'll check with the manufacturer if they are double walled as well.

Just didn't want my expensive diffuser getting ruined!

Thanks again for the help.

Cheers.

Peter
Pete, the tips from H&S are not double walls but i don’t think it will be an issue going on what people here are stating. There is a gap between the bumper and the tips so they won’t ever touch. If it would ruin CF i would imagine it would ruin the stock bumper as well and i have no issues.

Last edited by Stuno1; 11-18-14 at 04:07 AM.
Old 11-18-14, 03:31 AM
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Thanks Stu.

I didn't think it would cause a problem, but worth asking others than have run similar setups.

I know for example that the carbon tip covers were melting during harder track use (read a thread on here about it), hence Joe Z doesn't offer them anymore.

I'm sure it won't be an issue for regular/fast road use.
Old 11-18-14, 10:47 AM
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U got to clean it pretty often to prevent the carbon to turn color during high temperature of the exhaust. Even if u got the Joez carbon fiber exhaust too
Old 11-18-14, 02:17 PM
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Hey bro I have used this product before on my STI and EVO when I had the Vortex diffuser and really does work. My turbo car produce a lot of heat and with this product I did get that ugly yellowing or burning stain that you would normally get.. But good thing to share for Carbon fiber..






Originally Posted by PDP180180
Thanks guys.

We have a firm over here that sell a carbon fibre cleaner, that also protects from UV etc.

Firm is called Kleers.

It's not cheap, but with all the carbon bits I'm running, think I'll give it a go.

Here's a link for info purposes:
http://www.kleers.com/exterior-produ...n-uv-protector

I'll check with the manufacturer if they are double walled as well.

Just didn't want my expensive diffuser getting ruined!

Thanks again for the help.

Cheers.

Peter
Old 11-18-14, 03:18 PM
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ISF4life
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Uh, very good reviews ordering one from USA
Old 11-18-14, 04:47 PM
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etohprn247
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Joe Z and Toms rear diffuser.....2years + no problems at all....yet
Old 04-08-19, 03:43 PM
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YeShrug
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Originally Posted by etohprn247
Joe Z and Toms rear diffuser.....2years + no problems at all....yet
Joe Z version two?

Tips stick out / make me nervous to flex the CF enough to fit. 😕

Old 04-08-19, 04:08 PM
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It should fit


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