I have had great luck with the zex system. I have not done any research on the venom kit, however, so no opinion there. On the dyno, as long as my bottle pressure was at 950, the zex kit produced the advertised rwhp gain. The 100hp setting was in fact 102 hp and 126 ftlbs of torque. The 125 was in fact 128 hp and 147 ftlbs of torque!
The zex kit is great for the 05, but I see you have a 2002, so all the other info I would normally have to add doesn't apply to you. Definitely get a colder plug, run good gas--never ever 87 on n20, only 91 (CA), have the appropriate timing, and make sure your fuel system is up to the task.
__________________ Paul Daily driven 2005 GT AUTO - Whipple @ 16psi - 577 rwhp 519 rwtq
Best 1/8th mile: 6.740 @ 101.56 mph with a 1.431 60' time
Best 1/4 mile: 10.672 @ 128.42 mph with a 1.480 60' time Special thanks to:
ST Motorsports, San Bernardino CA - built engine and tune
Larry's Transmission, Corona CA - built 5R55S
M&H - 325/45/17 racemaster drag radials
GI Joe - 8 rib pulley kit
Thump_rrr - billet tensioner |