Hi guys
Quick question,,, from what i understand my car has the standard 2.5" exhaust system and a 3" (maybe 3" not sure)) decat from the turbo down.. the car has been remapped by andy forrest by the previous owner with the dual map option triggered by the rear defrost button(amazing hours of fun),, a recent trip to the RR proved that on the low boost map the car gave 305BHP & 270 torques and on high boost 321BHP & 325 torques should this figure not be a bit higher.., if so do u think the standard 2.5" system is restricting this??
Help!!!
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