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Over 10k miles on my Spec X from SSP i'm at 900whp and 930wtq no issues. I had Spec R clutch for atleast 5k before and again no issues.
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14 M6 Sakhir Coupe | RK Autowerks Built Motor | G25-660 | Snow Performance Meth | RK DP | 4mm bored throttle bodies | SSP-X | SSP Trans Pan | RK Billet Diff Mount | DSS Axles | Rkautowerks carbon charge pipes | CSF Intercoolers |Akro exhaust | Gapped Plugs |RK intakes | 900whp/930wtq
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