[mackthehack]

I am running an mbrp 5" straight pipe on my lbz. Under hard accleration I get a loud ass rattle. I have tightened my bolts on the exhaust numerous times, and still present. I noticed the noise even when I had the mbrp muffler on. Has anyone experienced a similar noise?

 

[ob_1jr]

does your pipe hit on the tranny crossmember? I know I had to put a socket between the crossmember and pipe before tightening it. I also hear that there is a heatshield on the downpipe itself that welds break and it rattles.

 

[mackthehack]

I grinded a little off of the u-bolt for the 4-5" adapter. Used a prybar to pry up the pipe away from the crossmember. I have not checked the heatshield yet. Thanks ob1