Exhaust Wrap

Hey All,

I’ve seen some old threads on this but no one posted pics or discussed results years after wrapping. I hope to spark some conversation on actual results of wrapping, years and 10k miles later

Retaining heat in the exhaust system leads to higher rates of cylinder scavenging (burnt gases leaving cylinder so new air can get in) by increasing the heat of the exhaust temps, which increases speed of the exhaust flow.

Advantages:
-power: will be seen on a dyno but probably not felt
-reduced engine bay temps: important in my F430 when modifying from stock headers to aftermarket which run hotter
-looks: probably irrelevant

Disadvantages:
-increased corrosion: moisture held to metal under the wrap
-risk of it coming undone, slowly disintegrating causing engine bay mess
-fire hazard: wrap soaking in oil

I’m mainly concerned by increased corrosion. I ceramic coated my exhaust inside and out, then wrapped it with high-end DEI volcanic ash/titanium wrap. I hope the combination reduces risk of corrosion. Plus, the engine bay doesn’t get as much road oil due to the plastic panel. Stainless steel s-line exhaust, AP headers and Top Speed sport cars- F430.

When people complain about corrosion from wrap, it seems it’s on daily driven cars with assumingely cheap steel exhaust. Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login

Does anyone have experience of what wrap did years later to a stainless steel system driven <4K miles/year and not subjected to rain/snow/salt/etc?

Thanks


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I used a performance race shop for the ceramic coating. It wasn't cheap ($1200). They're professionals. I didn't wrap it until 2 months after I got the parts back. I am sure they properly baked it all too. All the hardware and clamps were ceramic coated too, inside and out! Receipt says, "Ciloxide Black + MCS inside."

The whole system (headers, cats, and exhaust) took (5) 2'x50' rolls. 1 pack (100pcs) of stainless steel 11.8'' zip ties by SunplusTrade on amazon.

 

So something interesting about DEI titanium wrap quality control….

I purchased 4 rolls from DEI official store on Amazon between October 2021 and January 2022. The quality of the wrap, the tape and tacs/nails used to hold roll together, and the center spool were all different. The packaging was the same. The quality of the rolls varied greatly; some would flake into the air, unweave, stretch, etc all differently.

Most interestingly, my friend gave me a roll he purchased from years ago and the quality was waaaay better. It didn’t flake or unweave at all. Pics attached: friend’s roll on right and one of the four on the left. Zoom in and look at the weaves and edges and you’ll see the quality difference.

I emailed DEI customer support and haven’t heard back in a couple days. Will update accordingly. As of now, I can’t recommend buying DEI until we get an answer on quality control. DEI is supposedly the highest end wrap readily available. Image Unavailable, Please Login


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I got the titanium Heatshield too, from S-Line.

I wish S-Line made headers and cats too because their customer service and quality of products is phenomenal.


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