[anthonygan]

Originally Posted by lsturbointeg

reach out to Mike from XPH (Site Sponsor) to see what he has available.

here's a few that I should work on the xdrive:
Agency Power
https://x-ph.com/agency-power-titani...-535i-f10-f18/

FI...very nice sounding exhaust
https://x-ph.com/frequency-intellige...ronic-exhaust/

GTHaus
https://x-ph.com/gthaus-f10-535-exhaust-system/

I’m thinking of going with the GTHaus Meistercraft exhaust but I’m not sure if I’m gonna go dual or quad tip.... my car right now has dual but I’m wondering what is the sound difference between the two.