Quote:
Originally Posted by drparker21
Any body running the Billy boat exhaust and headers on there zl1. If so is it great also any videos
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I had it on mine, until I sold the car. Had a kid and was changing careers over the winter, so I decided to free up some cash. I loved it so much that I kept the exhaust in hopes that I'll replace the car this summer with another 1le or zl1.
The valves don't make much of a difference between open and closed. Great design, but the flap on the valve is too small of a diameter and lets sound past even when it's closed.
But, honestly, I stopped caring about the valves because the system sounded so damn good with the valves open.