Don't know about UpRev.
I tuned my car with COBB, and I'm very happy with the result.
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Lou Fusz Nissan | KW V3 | SPL rear camber and toe bolt | OS Giken LSD | Nismo Diff cover | Engine Oil cooler | F.I. TDX Cat Back 18" Resonators | F.I. Resonated Test Pipes | Injen cold air intake | COBB AccessPORT | JWT Clutch Flywheel |
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