Problems with BBK

[Cali Cobra]

I have a 99' Cobra and I had bought a bbk off-road X and when I put it on it sounded great but the only problem was when I reved the engine the car would rattle. Has anyone had this problem too or could it have been something was loose?????

 

[missouri_guy197]

Make sure it's not rubbing anything under the car like the tranny or crossmembers, and make sure you don't have leaks and all the bolts are tight...