If you are at 498rwhp now you will be around 698rwhp with the base ecs kit. A stock ls3 went on the dyno right before me and i made 200hp more than him. Origionally it was base ecs kit headers exhaust and it put down 525rwhp mustang dyno/577rwhp on dynojet. Installed meth and ground restrictor plate out a little for 1psi more boost and it made 600rwhp on same mustang dyno so id guess around 650rwhp on a dynojet. I have id850s zl1 pump and adm fpcm.
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ECS Ysi-B, cam, Tsp 2" longtubes, Squash dual pumps, Id1300s, meth, 4L80e, FTI 3600, ZL1 3.73 diff, BMR suspension, 15" conversion, weld rts mt 275 et street R. 9.6@147mph
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