you've basically had every option available thrown out here..lol
I'll be installing challenge sport with akra slip-on in the next week or two. I'm local, you can check it out...
IMG in CT has akra with a full catless (4 resonators) setup...it sounds badass.
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2022 Dravit/Fiona M3cx - Dinan midpipe w/VC, NW Carbonhaus CF, AST Springs, FC Spacers...more to come!
2016 Indi F80 M3 - SMB|Amaro | Mode Carbon | ESS | Akra EVO | KW HAS...SOLD
2012 MR e92 M3 DCT, ESS SC, Brembo BBK, BBS FI... GONE but not forgotten!
2008 AW e92 M3 6MT, ESS SC, BBS LM's...SOLD!
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