2004 Cooper S Supercharged. M7 CAI, Alta 15% Reduced SC Pulley and Lightened Crank Pulley, Denso Iridium Spark Plugs, MSD Ignition Coil Pack, Magnecor Spark Plug Cable, Eurotuner cat delete manifold, JCW exhaust system.

Sorry for the short video, was kinda afraid that I'll pissed off the neighbours! JCW Exhaust sounds really great and slight more aggressive with custom Eurotuner cat delete manifold. The bass when idle is much more lower but as quiet as stock. Its great driving around town and no droning so far. But when you hit the rev more than 4k rpm, the JCW exhaust screams! ..in a good way.