well i finally ran my buddy's 06 GTO with SLP cat back and surprisingly i had him up to 135mph starting 45mph 2nd gear freeway run. he would pass me right after i would shift into 5th (my clutch would sleep 3 to 4th and 4th to 5th) my 2000 SS has slp loudmouth, hooker shorties, and slp high flow lid. not to mention 82000 miles. so what do u guys think? on the freeway GTOs weight is not an issue, but the 65 extra horses do alot.

