Do downpipes make a noticable difference in hp?

 

Yep. They can add 15 to 25 extra ponies.

 

Imolas4, what is good reasonable price downpipe i could get?

 

There is no reasonable price for DP's unfortunately. The best price I've seen is $250 for the LA Bree/Tantrumwerks DP.

 

Can they be custom made, like just weld piping from the cat like you would a regular catback exhaust?

 

Not exactly. Fit and finish (internal) are more critical. Tolerances for fit are higher and flow from the manifold must be considered - it needs to have the proper amount of turbulence vs. flow. The interior has to be ported properly so as to accomodate the flow and the material has to have decent heat resistant qualities - better than cat back exhaust materials. Don't get me wrong, it's doable (that's why aftermarket companies make them), but it's a bit more involved than getting a mandrel bent pipe to fit under your chassis like an exhaust.

 

I see, you would almost have to have measurements,degree of angle bends, and what material to make it work efficent. Thanks for help imolas4.

 

...and internal measurements, too. Consistent and progressive internal diameters are important.

 

Imolas4, i think im gona get that downpipe, it looks to me like it would be easy instalation too,also what all tools am i going to need, all i could see was 2 bolts from the turbo down to the cat, how is it connected there.Thanks for the help

 

Is that tantrumwerks/LaBree one a good one to get?