[mike@x-ph.com]

Originally Posted by edwarjejeega

In terms of primary/secondary together or just Keller as a brand?
I’ve heard a lot about ER and it’s definitely a great alternative as it’s half the price, but I’ve also heard Keller is a perfect (100%) fit whereas some shops have trouble getting the fitment on ER.

Originally Posted by pbonsalb

I don’t doubt Keller is high quality, but these are all stainless downpipes that have been installed many tunes without issue. MAD is the best deal on downpipes. I have installed those myself.

in terms of the material used, they are all made with 304 stainless steel.
All three proven to fit as well. same performance same sound.

MAD is probably the best value option on the market.
Evolution Racewerks is more expensive because its hand built in the US

Im not too sure where Keller is built but for that price, im assuming its built in the US as well. But i could be wrong