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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 10-12-2008, 04:28 PM   #1
Bimmer Dude Xi
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Exhaust Wrap

How much a difference does exhaust wrap makes?
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Old 10-14-2008, 11:26 AM   #2
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You mean header wrap?
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Old 10-14-2008, 01:19 PM   #3
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Quote:
Originally Posted by SWINFORD View Post
You mean header wrap?
well yea, same thing to me
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Old 10-14-2008, 01:22 PM   #4
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Not enough to bother with it. Most of the time it actually is harder on the headers. Keeps too much heat in them and can cause cracking. I have unwrapped, uncoated headers on my car. Haven't noticed any heat related issues with 'em yet!
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Old 10-16-2008, 12:10 PM   #5
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If you ask a header wrap company, they will tell you that the reason the headers crack is because they are not made well enough to withstand the amount of heat that the wrap keeps in the header. The bottom line is unless you are having heat issues (plastic in the engine bay is melting, or some other thing, etc, it is not worth it.
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Old 10-16-2008, 12:25 PM   #6
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Header rap is a really bad method of heat control. If you buy ebay headers, send them out to a ceramic coating place near you. It's pretty cheap, and yields much better results.
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Old 10-16-2008, 12:30 PM   #7
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you want to wrap your headers and buy a bbk for a 325 sedan
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