Hello.1.0 mk3,5 car originally 125 horsepower, reached about 145-150 horsepower. Tune/Remap was done. Air filter K&N 54s-4000. Exhaust 21.6 inch (55cm) from downpipe to end, with free-flowing resonator and free-flowing muffler. Sports shocks absorber. 225/45/17 wheels Sprint Booster Out of curiosity,could something else be done so that performance will be increased? What do you suggest? Under no circumstances should catalyst be removed/deleted.