I am buying HPT this week so I can prep my '98 C5 for an SCCA time trials on the 12th. I am almost finished with my first round of mods and I'm quite sure I'll need to get a tune done. The mods are; Supermaxx headers ( full system )
Vortex air box, Halltech air bridge, Z06 manifold. If someone has similar mods I'd appreciate any help in getting it tuned before the race.
Thanx,
jg