Let us know how it goes for you. I plan to order my exhaust from them next payday!!
I plan to get the SLP Camaro 2010 V8 Axle-Back PowerFlo Exhaust with 4 inch Tips $629.96 and SLP Camaro 2010 Longtube Headers 1 3/4 w/ Cats and Xpipe $1,699.96.
http://www.lmperformance.com/53568/119.html
http://www.lmperformance.com/53643/119.html
I have an L99 800 miles all stock for now. Exhaust and hand held tuner next month, add CAI and a hand held tune in 2 months from now and a supercharger and dyno tune in 8-12 months from now.