Holley EFI ECU & Harness Kit (58x Crank Sensor) 871291 The XForce headers are a

The XForce headers are a 4 into 1 long tube design with the 1" 7/8 primary & a 3" outlet

Fitting and calibration instruction included

This camshaft works well with high boost builds

Your X2i Conrods Features

The Texas Speed 230/236 features a new & more aggressive design in intake lobes & a slight change to the camshaft design has allowed Texas Speed & Performance to create more peak horsepower & torque

Holley EFI ECU & Harness Kit (58x Crank Sensor) 871291 The XForce headers are aHolley HP EFI Ecu & Harness Kits LSX Performance Parts has partnered with the industry leaders in performance products. We are your source of all things performance.