I own a 1.6 SR 2006. Would like to mod the exhaust with a sporty one, for look and sound, not bothered with extra power. My local exhaust garage will custom built the back box or the whole, from £220 plus VAT. Its called 'powerflow' stainless steel. Any pro or cons regarding this mod, advise if I need just a back box or the full, and will it still pass its MOT in 2 years time? What tip would you advise, I fancy a double straight cut right in the middle of the bumper, like the minis, any suggestion would be highly appreciated.