Don't forget that the MPPSK includes an M-Performance exhaust system, which is roughly $1300. You don't get an exhaust system with the Dinan Stage 1 or any of their other tunes. So, more of an apples-to-apples comparison (tune only), it would be more like $1400 vs. $1500. Advantage with the Dinan is that you can go to S2 or S3, etc., by paying only the difference between your S1, and you can pick your own exhaust system.
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2015 F80 ///M3 Sedan 7DCT Tanzanite, 2022 X3 sDrive30i 8AT Brooklyn Grey
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