RC and Dinan are great piggy backs. I think Dinan goes 85hp(I could be wrong). But I think you'd be pleased with either. Dinan assumes your warranty if something breaks and why it's a premium charge. Jb4 or RC happens to be cause of something breaking your on your own with warranty claim. But seeing how mild they are I would feel confident either is safe for long term use
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2013 535i M, Carbon black 20' 6 M wheels, totaled.
2018 750M ,
2013 M5 , Individual Silver, Bolt ons-Straight piped
2019 M550 686BK Black Chrome 20"wheels, filters, Evolve Stage 1, Res delete
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