They are hideous, look sh1t, sound sh1t, the welds are rubbish, makes your car slower than it really is, this was proven yesterday on the rolling road where a standard 182 ran 186bhp but a 182 with a blueflame cat back on ran 173 hmm not a good advert is it?
The rolling road yesterday was pretty accurate as there was a mk1 Astra GTE with a standard 2.0L red top in it and it was getting book horse power and torque.
They should stick to bike exhausts!!