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need help with exhaust tech here!!

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Old Dec 9, 2010 | 09:06 PM
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Default need help with exhaust tech here!!

Here it is i just bought an 05 z71 4x4 and want to put better exhaust on it headers back. I want dual exhaust straight out the back, but dont want to take my spare off. I also tow my boat with the truck so i need low end torque. I am thinking magnaflow cat back, any ideas about the headers? I am assuming that longtubes are out due to it being 4x4, this is my first truck modding experience any help is appreciated!
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Old Dec 9, 2010 | 09:12 PM
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Originally Posted by TUCKZ28SS
Here it is i just bought an 05 z71 4x4 and want to put better exhaust on it headers back. I want dual exhaust straight out the back, but dont want to take my spare off. I also tow my boat with the truck so i need low end torque. I am thinking magnaflow cat back, any ideas about the headers? I am assuming that longtubes are out due to it being 4x4, this is my first truck modding experience any help is appreciated!
Headers, if you can get away with it, an ORY (Off Road Ypipe), then I would use your choice of 3 inch in dual out muffler.

With my old exhaust setup I had stock manifolds/cats/collector... cut the exhaust off at the collector, attached a 40 series flowmaster 3" in dual 2.5 out muffler, and had a guy custom build my tailpipes. I think all in all, it cost me something like 250 total, I didn't have exhaust tips, so that's another cost you'll be looking at.
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Old Dec 9, 2010 | 09:18 PM
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damn 250 isnt bad at all, being in ny though we have salt on our roads in the winter so i was leaning towards stainless. Are you talking long tubes or shorties? Is there any benefit to shorties over stock manifolds?
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Old Dec 9, 2010 | 09:25 PM
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shorties are about the same as manifolds. Get ceramic coated long tubes. should last longer.
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Old Dec 9, 2010 | 09:37 PM
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Originally Posted by TUCKZ28SS
damn 250 isnt bad at all, being in ny though we have salt on our roads in the winter so i was leaning towards stainless. Are you talking long tubes or shorties? Is there any benefit to shorties over stock manifolds?


Things in rural Missouri are a little cheaper than in the city, also helps when the guy that did it is friends with your uncle lol.

We have salt on our roads in Missouri too... But like Josh said, the ceramic coated headers will last longer. A lot of people say there's no benefit to shorties over straight manifolds, I've never had them, so I couldn't say for sure.

I'm getting ready for my next exhaust, I'm going to run long tubes, 3" stainless tubing into an xpipe into 2 40 series flowmaster 3" in and out and into turndowns. Just something different than most of the people around here (people around here are so uncreative with their vehicles).
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Old Dec 9, 2010 | 09:46 PM
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well I dbl checked specifics for road salt. stainless is usually Thicker and better for salt exposure while Ceramic coated reduces chance of rust as long as the coating don't get rubbed off.
Ceramic will also keep the heat in better than stainless. With stainless the engine bay will heat Soak a lot more.

Edit: BTW pretty much every company that makes a 2x4 header for these trucks make a 4x4 header as well.
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Old Dec 9, 2010 | 09:52 PM
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Ceramic coating isn't a substitute for stainless. It's a thermal barrier coating. A side effect is that it also happens to give limited corrosion resistance, but that's not what it's for. If you scratch it, the substrate will be exposed.

You can ceramic coat either stainless or mild steel headers.
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Old Dec 9, 2010 | 10:12 PM
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-Deleted-

Last edited by dmelvin; Dec 9, 2010 at 10:32 PM. Reason: It was a stupid question.
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Old Dec 10, 2010 | 11:06 AM
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Originally Posted by pdxmatt
Ceramic coating isn't a substitute for stainless. It's a thermal barrier coating. A side effect is that it also happens to give limited corrosion resistance, but that's not what it's for. If you scratch it, the substrate will be exposed.

You can ceramic coat either stainless or mild steel headers.
I think a lot of the ceramic coated headers are mild steel that's coated but being where the OP is from I'd definitely get Stainless and have it coated for the extra protection.
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Old Dec 19, 2010 | 10:06 AM
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so will long tubes net me more tq? I tow my boat and dont want to lose any low end tq. What is a good long tube for my truck? I only want to do this once but dont want to break the bank ya know? my wrangler dura tracs are digging into my budget too haha
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