09c350

I just picked up an 09 c350 W204 and I was wondering if anyone knows where is the best place to go for exhaust upgrades? after market headlight/taillights? I really wanna invest in an eisenmann race exhaust system! I've seen it on a c300 in a car meet once and it sounded insanely deep but I never got to ask where he got and installed from! anyone knows someone in the GTA area to go to for that kind of work? Appreciate you all