FAST ADJUSTABLE LSXR (LONG RUNNERS)
That the FAST LSXR intake only offered an additional 5 hp over the factory LS3 shows just how little power the GM engineers left on the table. When selecting an intake for a cathedral-port application, the FAST is the go-to choice, but the gains are much less prevalent on the LS3. We did like the adjustability that allowed us to tune the intake to the rest of the combination and intended engine speed. Equipped with the FAST adjustable LSXR intake (long runners), the 6.2L produced 585 hp and 533 lb-ft of torque.
Standard Corrected Power