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Stainless Vs Mild Steel


macca2042

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  • Member For: 13y 9m 23d
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  • Location: Auckland, New Zealand

I think I paid NZ$1500 for my whole system in stainless. Sounds a little loud and I would probably go stainless again next time but in twin 2.5".

Lagging the front part of the system will keep the heat and noise down considerably.

There wasn't much difference in the mild steel price where I got mine.

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  • Member For: 15y 2m 22d
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had a 3' mild steel cat back on my old ute, actually did drone a bit, what does a twin 2.5' sound like?

Edited by macca2042
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  • Member For: 16y 11m 17d
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  • Location: Probably above atmospheric pressure

It'll depend a lot on muffler size and construction for any exhaust I'd think? My 2x2.5" mild sounds nice except when towing at 100, then it's a bit loud and droney. Rear muffler is small barrel style which I was recommended to change to a better construction stainless oval type.

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Some more info, I asked Hi performance products in Mitcham who are a distributor for jet-hot and the guy said that if you want 'jet hot 2000' coating which is designed for turbo applications it only applies to mild-steel. So it seems I will be sticking to my original plan of mild-steel dump & cat with stainless steel from cat back

extract from jet hot site:

JET-HOT 2000

JET-HOT 2000 is a coating that can withstand high temperatures over 1094C. This is a very high corrosion resistant coating, making it a very good coating for use on Turbo Housings, Turbo Manifolds, F1 race car exhaust and other Hi-Temp applications. The colour is Black.

(This coating cannot be used on alloy parts.)

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  • Member For: 17y 14d
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Ceramic Coat Australia can coat stainless, silver or black. In my opinion its a great option as it keeps the heat inside the exhaust and limits heat transfer.

When I bought pacemaker headers I always had them coated

Edited by arronm
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how much to ceramic coat? I was quoted 200bucks approx a metre for hi-temp 2000(approx 1100 degree celsius protection). I think the less performing coats are about $100

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  • Dropping a turd
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Ceramic Coat Australia

Division of Pacemaker Headers

Call us today (08) 8354 2066

Edited by arronm
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  • 10 months later...
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  • Member For: 16y 5m 30d
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  • Location: Loitering in SEQ

Its been an interesting read.

We're currently builiding a new cat back exhaust for mine. Its been a custom s/s 4in dump to suite the high mount & a gutted cat with a xforce 3 1/2 cat back with a straight through resonator at the rear. The new one will obviously utilise the front half but the cat back will be 4in mild steel with offset s/s mufflers. My only reasoning for mild was the noise I want from the car. WIll be all vbanded as well

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  • ...JD TUNING ADELAIDE...
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  • Member For: 16y 5m 10d
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Exhaust joints been using mild steel since before beer was invented by me. If rust was major concern then they would of switched to stainless.

If your tryin to save coin, or keep the weight down then mild steel is the go. If you want to impress your friends then stainless.

your my mate and no ones impressed

Weeeeeeee

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