Purchased an SLP flowpac....Maybe?
I already knew that the flowmaster isn't good for the ls1 but i got one used for sooo cheap... that is why it says cheap sound in my sig. I plan on putting a full exhaust on latter.
As for the SLP lid I picked one up and glad I did. I haven't owned/driven the car long enough to notice the difference in performance but the visual upgrade is GREAT. I just bought the cai slp metal thing off of ebay for $55 shipped. I'll keep you posted on that.

