um... trying to decide what type of material to use for IC piping..
i've seen people use:
aluminzed steel
aluminum
mild steel
stainless steel

SS and aluminum are the most expensive..

mild steel is more expensive than aluminized steel but still a lot cheaper than SS or AL...

on yahoo.. aluminum is the only one that absolutely doesn't rust and SS can rust if the coating is poor quality...

i've seen companies use alum and mild steel for IC piping... and i wanted to know... if mild steel is coated... would it rust? (inside or out) or since the gases going through are so hot... would it cause the coating to flake and then rust?

how about aluminized steel? i think this material is the easiest to rust? would it rust from inside or outside? does coating help prevent rust?

there are quite a few companies manking downpipes from coated mild steel as well... so i'm not sure if these would rust out after a few years either...

reason i'm asking is cause in toronto we get snow... and i don't want my ic piping or my dp to rust out in just a couple years...

thnx

Aluminum should be the only option to consider... Chunks of rust in your motor are not good.

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speaks words of wisdom....aluminum is the only way to go with your IC pipe....even if you coat the inside of your pipes or outside....the coatings will eventually come off and go inside too...

save up and use ALU

how about stainless steel? i always thought the reason people upgraded exhaust piping to SS was because it lasted forever?

As you said, SS can still rust... The heat cycles in your engine bay will actually change the molecular structure of the steel causing it to be more prone to rust. Trust me. Aluminum is the only choice.

This post has been edited by WannabeGT4: Oct 6, 2006 - 10:50 AM

icic.. hm.. so how about exhaust/DP piping? does that matter?

downpipes don't matter as much...SS works but you need someone to TIG weld it for you....

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i have stainless on mine. its been over 2 yrs and no problems at all.

aluminum is also a good option, you just have to compare the costs. keep in mind that as good as aluminum is, its a thin metal, thats not as durable as stainless. very easy to scratch too.

dont bother with mild or alminized , they will rust.