B&M 70380 - ShiftPlus Shift Improver - GM 4L60E/4L80E intake-manifold Deep Performance Tone from "Straight-though"

Deep Performance Tone from "Straight-though" Flow FX Muffler

Automotive Item Grade High Performance Brand B&M California Proposition 65 Required Yes Color Natural Emission Code 5 Material Steel Product Type Manual Transmission Shifter Lever Kit Warning California Proposition 65

Monitor the power of your Holley EFI system at a glance

1968-1972 Pontiac LeMans 400 CID

B&M 70380 - ShiftPlus Shift Improver - GM 4L60E/4L80E intake-manifold Deep Performance Tone from "Straight-though"Overview: The new design of the B&M ShiftPlus Electronic Shift Improver allows you to improve the transmission's shifting performance without removing the transmission pan or valve body. A simple flip of the switch allows the transmission to operate in the performance mode. Flip it back and you are back to stock! Installs in just minutes, the ShiftPlus simply recalibrates your transmission's hydraulic system electronically for optimum performance and