What kind of pipes do you guys use for your turbo -> intercooler -> TB? How thick are they? And where do I get them? Also, where do I get some coupler reducers?

 

^bump^

Damn, my other post without a subject has more replies than this one. Anybody?

 

I used samco silicone hoses but cant remember the sizes. They weren't cheap but my old ones were starting to get a few cracks, i now get more vaccum at idle and they look great aswell. They also do coupler reducers. I bought them from a company called demon tweaks, their export sales number is 441978664461. You can buy blue ones straight away but you'll have to wait about 6 weeks for other colours.

 

If you want cheap and don't mind the weight, go with mild steel pipes.&nbsp You can get these locally from the muffler/exhaust shops.&nbsp Standard thicknesses are like 14 gauge to 18 gauge.&nbsp These pipes are easily welded (MIG'd) and painted to prevent rusting.

If you got the money, there's always aluminum pipes.&nbsp Burns Stainless http://www.burnsstainless.com/ has a good variety of pipes but be warned it's not cheap.

Pipe ID is dictated by turbo size and power levels.&nbsp As a rule, always tend toward the smaller diameters, as this keeps intake velocity high.&nbsp Don't feel bad when you're using 2" pipes and they look wimpy under the hood - larger pipes increase lag and boost levels.

Stock turbo, up to 250hp - 2"
turbo upgrade, up to 400hp - 2.5"
400+ - 3"

I never bothered to mention 2.75" pipes, as this size is actually hard to find for most people.

As for silicon reducers, try Turbonetics http://www.turboneticsinc.com/ or Baker Precision http://www.bakerprecision.com/

-Ted