Hey guyz

I just installed a new cat back system on my car. 2 and half inch pipe, with a resonator and sports muffler, a difference in power is noticed, and also the sound on the outside is great. However inside the cabin its fairly noisy and itll probably end up ****ing me off. Ive done a search on here regarding dynomat and only found stuff relating to sound systems not really exhausts. Has anyone used any sound deadening material to quiet the exhuast in the car?? Does it work well??

Im thinking about getting something similar to dynamat, as i cant get my hands on it in australia, and putting it in the trunk and on the floor of the back seats.

Any suggestions, comments, opinions??

cheers