I recently changed back from straight pipes to the stock exhaust. I love the quieter sound so much more, plus the seat-o-the-pants meter makes me think the truck lost low end torque with the straight pipes, but who knows. Now to my problem, when I get on it hard (4500-5500 rpm) their is an extremely loud whistling sound from the exhaust. I was wondering if anyone else has had this happen? I know their is a small leak right after the muffler, but I didn't think that would cause such a loud whistle. Thanks for any assistance.

 

My bet's on the leak. I've had small holes in muffler pipes in the past that annoyed the hell out of me...

 

Leak

I had a leak on my exhaust when I put the bassani on, WOW I couldn't believe the diiference in sound. Must have been just one of those leaks.

 

A pig-in-da-pipes???

 

Didn't you see me pass you? That was my S/C whistlin. I was kinda going a little over the speed limit, about 130mph or so.LOLAre you going racn Friday Night? Josh