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Old 04-22-2009, 03:17 PM   #1
Mr_Snips
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Just ordered my Borla Rep headers off of Ebay. MY question is though, is it worth wrapping them? It seems like it would be but idk if i really want to go through the hassle.

Well i got it installed today and wrapped. It fit okay but needed to be widened if that makes sense. I drove it around for a bit before i took it back off and wrapped it. The wrap made a noticeable change in exhaust tone and in performance. The high end seemed much better wrapped then unwrapped.
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Last edited by Mr_Snips; 04-30-2009 at 09:20 PM.
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Old 04-22-2009, 04:03 PM   #2
chazly413
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Without the wrap, I've heard the headers sound really hollow and amplify any valve train noise you have, which you probably don't want. I also recall something about the wrap amplifying the weakness of the welds and possibly causing them to crack faster. I can't recall exactly about this last detail with cracking, so someone else should chime in.
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Old 04-22-2009, 05:52 PM   #3
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Quote:
Originally Posted by chazly413 View Post
Without the wrap, I've heard the headers sound really hollow and amplify any valve train noise you have, which you probably don't want.
DEFINITELY!! I have had mine on, unwrapped, for 2 years now and the valvetrain noise is just annoying. it sounds like A LOT of air moving through very hollow pipes. Anytime you drive next to a cement wall of some sort you'll know what I'm talking about.

I plan on wrapping mine when I put new gaskets in this summer.
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Old 04-22-2009, 05:58 PM   #4
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ive heard many say yes wrap them! and many say nooo dont! i live in PA and we get snow, rain, and sun alot so we have alittle bit of it all, all year round and what ive heard is that with the wrapping on it can cause moisture to stay in the pipe and rust/crack.. idk if this is true so try to get some more input on that. but i know if you have the money the best option is to get them coated, but if your like me i dont have the money, i did see these cans of DIY heat coat spray at like advance auto or autozone and it seams like it would be better than nothing so i might end up doing it to mine but i dont wanna wrap them cause it lookslike a pain in the ass and yeahh id rather just use the rattle can stuff=]
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Old 04-22-2009, 06:05 PM   #5
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fwiw, I had my old repo uel's wrapped for 2 years and they were fine when I resold them, just light surface rust under the wrap. This included a couple of healthy salt-laden midwest winters.

I'm not sure if it's still the same but the knockoffs I had were made of pretty thick steel tubing. I painted the header before wrapping, then sprayed them again.

More worrisome is keeping oil off of the wrap when you do an oil change. I usually wrapped area closest to the filter with plastic bag and very carefully pulled it off when I was done.
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Old 04-22-2009, 06:44 PM   #6
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Skip the wrap and just get them jet-hot coated or something similar.
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Old 04-28-2009, 10:46 PM   #7
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Well, i'm going to wrap them. i got some wrap and i must say its very thick and very heavy. i'll post pics when i'm done.
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Old 04-28-2009, 10:49 PM   #8
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I think I've seen a few people apply some kind of water-proofing spray to the wrap. You may want to look into that.
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Old 04-28-2009, 10:52 PM   #9
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+1 to the wrap . otherwise the valve train noise is really annoying .
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Old 04-28-2009, 10:56 PM   #10
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The sealent is a must. it was like 10 bucks at autozone.
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Old 04-29-2009, 07:29 PM   #11
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Quote:
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The sealent is a must. it was like 10 bucks at autozone.

use this stuff after you wrap your header.
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Old 04-29-2009, 07:36 PM   #12
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First, I used VHT Flameproof high heat ceramic coating and then baked it in order for it to cure. Next, I used the Thermotec Gen-II copper wrap. Finally, I sprayed another can of VHT over top of the wrap, installed and cured the paint again. No valve-train noise and no CELs.
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Old 04-29-2009, 07:44 PM   #13
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Thats what i have...the DEI stuff. so we'll see how it goes tomorrow. Anyone know what size bandclamps i'll need?
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Old 04-29-2009, 08:13 PM   #14
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When you're wrapping, wear gloves, long sleeves, goggles etc because the wrap is itchy as hell.
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Old 04-29-2009, 08:15 PM   #15
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When you're wrapping, wear gloves, long sleeves, goggles etc because the wrap is itchy as hell.
will do...how long does it normally take for the wrap to dry before i should spray it?

also what size hose clamps do i need to buy?
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Old 04-29-2009, 08:31 PM   #16
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Quote:
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will do...how long does it normally take for the wrap to dry before i should spray it?

also what size hose clamps do i need to buy?
Depends, are you going to wet wrap or just dry? With the wet, I let the thing sit for a couple of days and sprayed it - even then I had a lot of smoke seep out of the wrap when I ran it on the car for the first time. Really looked like I blew a radiator or something when I drove around for the first 30 minutes. In hindsight I shouldve driven on the highway so the smoke would clear out faster.

When I did dry on my turbo manifold, I didn't get as much smoke.

Hose clamps, depends on how you're wrapping it. I ended up using only two hoses clamps, one for the collector (3" IIRC, but snipped off the excess) and another on the crosspipe (2") when 2 of the runners merged. This is because I started at the head flanges and wrapped each runner individually then tapered to the collector. Much harder to do, but it looked much cleaner.

I know people using clamps on each runner or at each merge depending on how they started wrapping it.
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Old 04-29-2009, 08:59 PM   #17
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valvetrain noise?

I got my borlas and haven't heard anything like that, unless I'm just used to the loudness of my exhaust.
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Old 04-30-2009, 12:41 AM   #18
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i kinda like the valvetrain noise, it sounds more beastly
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Old 04-30-2009, 03:48 AM   #19
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valvetrain noise?

I got my borlas and haven't heard anything like that, unless I'm just used to the loudness of my exhaust.
like a ticking sound...I didn't really hear it when I was EL and non-wrapped. Dunno maybe I'm going deaf.
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Old 04-30-2009, 09:29 AM   #20
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Old 04-30-2009, 09:46 PM   #21
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sounds yummy
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