i bought a brand new split oval design backbox for my 2.2 coupe brand new in the box with fitting kit off a private seller who didnt want it. Since I put it on the car about 3months ago i noticed almost immediately the car seemed a little 'sluggish' and not a lively as it did before it was fitted. ive been on EbAY and noticed and others selling them but saying they only fit a 1.6 and 1.8 coupe? i didnt think to check the part numbers on the box on mine before it was fitted. does anyone know WHAT difference there are between the back box on the 1.6/1.8's compared to my 2.2????????
it fits nice on the car etc but im just worried ive got the wrong one fitted to my car hence afecting the performance. any ideas???