Originally Posted by Methodical4u

I've got 600 and some odd miles on my ART pipes and about 250 on my F.I. CBE now. I had been hearing a hiss, but only when letting off the gas.

So I got under the car tonight and checked all of the bolts... ALL of them were able to be turned at least a little bit. They were fully tightened when the install was done, but it was on the floor with a jack, so full leverage was difficult, but still all bolts were tightened to the point they were not able to be anymore, and they still came a little loose.. just might want to give them a quick check with a wrench.

Just a quick note that anyone who did their own install might want to take a look at.