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Old 02-19-2020, 10:43 AM   #4
Aperretta
 
Drives: 2017 SS 1LE
Join Date: Sep 2017
Location: Shorewood, IL
Posts: 265
Quote:
Originally Posted by drparker21 View Post
Any body running the Billy boat exhaust and headers on there zl1. If so is it great also any videos
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.
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