along with the JWT sport600 (yippe!) I'll be doing the install some time in September. The exhaust manifolds are the only variable, extrude hone has a 2~3 week turnaround. Hoping for at least 450 RWHP.
Best ET 12.66 at 113mph & 2.0 60' (on bald street tires) Best Dyno 339 hp & 384 tq