Some Details on HP Gains from Mods.

[FMR_TransAm]

2001 Trans Am A4
Dyno Stock with Borla Catback 298rwhp 317rwtq

I dyno 314rwhp & 326rwtq with SLP Ram Air & Lid, Cutout after Stock Y Pipe, & Borla Catbacks

Dyno 320rwhp & 334rwtq with same mods + Tune (gain 6rwhp & 8rwtq from tune)

Install LT Headers, 3" Y Pipe, Flowmaster Super 10 Catback, 228R Cam & K@N Filter

Dyno 356rwhp 371rwtq With Cutout Closed and Before Any Tune (gain 36rwhp & 37rwtq)

Dyno 373rwhp 382rwtq with cutout closed and After Tune with HP Tuner's (gain 17rwhp & 11rwtq from tune)

And 53rwhp & 48rwtq with Headers, Y pipe, 228R cam, and tune added

and gain 62rwhp & 53rwtq with same mods and cutout open

Final Number with SLP intake, LT Headers, Y pipe, Flowmaster Super 10, Cutout, K@N Filter, 228R cam, & HP Tuner
( 382rwhp 387rwtq )