Great cost Great cost, M5c sounds great with these.

I recently bought the muffler delete… I recently bought the muffler delete for their n55 catback exhaust. Installation was easy and the sound is insane!

VRSF downpipe I bought a downpipe from VRSF and it was perfect. It looked great and fit in perfectly.

VRSF High flow DP I bought a High Flow DP for my b58, the car sounds amazing. Turbos spool noticeably faster and defiantly pulls a lot harder. You do however have to separately purchase a downpipe gasket for about $25

VRSF High Flow Upgraded Aluminum Intake… VRSF High Flow Upgraded Aluminum Intake Inlet Kit N55 E Chassis 07-13 BMW 135i/335i/X1 E82/E88/E90/E91/E92/E93/E84 I needed to grind a hanger on this pipe to be able to bolt it on to the engine. Even after that, it has major fitment issues on connection to the turbo it is not tight and from another side to another pice of intake pipe also is not tight enough, a hole for screws which hold both pipe together also in wrong position about 1/4-1/2. Depends on all of it, and it needs to worry about some debris that can squeeze at the bad connections. Probably, I will put back stock pipe.