my pb in my gtp is a 13.69 @ 99.7mph mods were 3.4, togs, gmpp catback, hai, al104s, 180tstat, and overkill pcm, and dynoed at 242whp and 293wtq. Since then i have added a ported gen 3 and ported zzp tb, and im looking to do 1.9 rr and a ssic, and will be tuned with hp tuners from a local guy hopefully i can be around 13.4ish
here is a vid of my 13.9 run racing my buddies slow 3.4 setup gtp
grand prix gtp quarter mile - YouTube
and a video of my car at a dyno shootout at nagel auto body.... trust me i hate the sound of my exhaust, im looking into getting a new one
Grand Prix GTP Dyno - YouTube