had the car in renault today for this feckin rattle at 4k which is just getting worse
renault answer is that is the wrong cat, im like yes its a decat pipe from janspeed.
well thats your problem sir!!
they wouldnt believe me it was there before the decat went on and are prepared to do nowt about it even though its a known problem.
They claim the flange on the decat is too thin for exhaust, any one else had this problem?