Was in 4th gear I believe. Mods are Airaid CAI, Boss 302 Air intake, 3.73 rear end, 91 octane, and Diablo Sport tune. Traction control was on. Result 348 rwhp.
I am assuming you were on a Dynojet. And I am assuming you used a canned Diablosport tune which may not have accounted for the Boss 302 Intake. I believe the canned tunes are conservative and you could get another 20 hp with a custom tune.
Yes 5th gear is 1:1 and I have had mine on a dyno twice. First in 5th and the 2nd in 4th because they wanted to keep the miles per hour rate down I guess.
2013 GT, Track Pack
, Recaros, Kooks Axlebacks, Airaid CAI, BMR Rear Adj. LCAs, BMR Relocation Brackets
, JLT Oil Separator(s), Barton 2 Post Shifter Bracket
, Steeda Motor Mounts
, Barton Shifter
, JHR Clutch line, BMR adj. UCA and Mount, Kooks 1 3/4 headers/catted H, DSS Al Shaft
, BMR Loop
, Vogtland Sport Springs front/BMR rear, Strange Adj. Struts/Shocks, Extended ball joints, Steeda Bumpsteer Kit, Whiteline Tranny Mount Bushing, Borla Overaxles, BMR Watts, Vorshlag 3" Ducts