Mods: 3" elbow, 3"downpipe (with a 2.5" flex section), 3"test pipe, Tanabe hyper medallion cat back, mhg and arps, k&n cone filter, spec stage 3 clutch, upper hardpipe with greddy type RS bov, greddy profec e01 ebc, and a walbro 255:
i did 272rwhp, 324 tq at 13psi. at 11 psi i put down 259rwhp...