hi, need a new cat and exhaust, lexus dealer has quoted £1079.00 fitted, engineer knocked out the cat when fitting a clutch and listed exhaust as blowing at flange. have looked on e-bay and can get a stainless exhaust, blue flame or cobra for around £250-270, though do not want a much louder pipe if poss, enquired about a cat online with the catman and he has asked if its a underfloor cat or front manifold cat??? i havnt got a clue so if anyone can let me know so i can get a price on one, also if anyone knows of a good stainless exhaust etc any info would be appreciated. thanks