B&M Shift Improver Kit - GM TH400 Transmissions - 20260 exhaust-flex-pipe 00-inch mandrel-bent tailpipes exit straight

00-inch mandrel-bent tailpipes exit straight out the back under the rear bumper

SKU Number : 4884549AD Brand : Crown UPC : 849603004981 Part Type : Intake Manifold Flow Control Valve Actuator Dimension : 4

Temperature 195

Outlet: 3 inch dual

4L V8 1975 - 1978 GMC C15 350/5

B&M Shift Improver Kit - GM TH400 Transmissions - 20260 exhaust-flex-pipe 00-inch mandrel-bent tailpipes exit straightOverview: The B&M Shift Improver kits feature two options to recalibrating your 1965 1987 GM TH400, TH375 and TH475 automatic transmissions. First is the HEAVY DUTY set up, giving you firm positive shifts without loss of driver comfort for improved performance in all street vehicles. This is a great option for performance street driving or towing. The second is our STREET STRIP set up. Be warned, this will deliver firm positive shifts you will feel,