i just fitted a magnex de-cat the other day and combined with the HKS back box its now fairly loud. I was wondering if any one has used something to sound proof the inside of the car a bit more and what would u recommend? Also the tail pipe is now ******* scalding hot after a drive and im a bit worried about the rear bumper getting fried. iv go about 5-6mm clearance from bumper, will that be enough?

 

http://www.noisekiller.co.uk/sound_p...ehicles_04.php