Stock i dyno'd at 263rwhp 278rwtqthen i added a Weapon-R Intake redyno'd and got and Magnaflow catted-x pipe and the 3" magapack catback system and redyno'd to put down 290rwhp and 310rwtq and that was with no tune

 

Not even. Breaking the 300 mark to the wheels isn't as easy as throwing on a CAI and mid-pipe.

 

*****EDIT...my bad I looked at the wrong dyno sheet...we did three pulls each...the first printout was error on the torque, the HP was 274 and TQ was 303....my apologies....most of the folks dynoing S197's were seeing mid 260HP on stock and some modded heavily were barely seeing 280ish...However I did not see much variance in the TQ on most seemed like stock TQ was about 275-283 not more.

 

kinda confused about how the dual exhaust system is set up..so the one you have listed above is a complete system? from the header to the muffler? I am used to dealing with four banger turbo exhaust set ups( 02 housing,downpipe,cat,exhaust,mufflers)