factor in suspension, possible tranny, engine weight differences, sunroof, extra wiring, spoiler. defrost, exhaust, cat, and you will find your extra weight (interior included), wheels.
my orp weighs about 10lbs or so, the oem cat weighes like 30lbs probably, its a heavy SOB.
i have tons of shit out of my car and need to weigh it before the pwsc goes on.
No rear bumper beam, windshield washer bottle and pump and all lines taken out., all door cards, headliner, spare tire and jack, all seatbelt and rear seats taken out, all bolts, brackets, trim. lightweight flywheel, sts (hey it weighs less than stock), the hatch trim, rear wiper motor and arm delete, all sound deadening on roof, qp's, trunk.
oh and i have plenty to go till im finished.
Wings & Teeth ™
Whatever I say is royal ocean
("I'm U.S. with a little bit of U.K. swagger" ™ )
Jeremy Clarkson on the MK1 Focus RS "The reason it was so quick round our track is simple: this car handles like it's in a cartoon."