LS, PSI PERFORMANCE, SINGLE SPRING, SET 1511ML afr and may have additional options

and may have additional options such as a TCM

190" thick

Turn up the power on your Polaris side by side and Indian motorcycle with HP Tuners’ Polaris OBDII Adapter Cable

Walkinshaw

Hardened pushrods are a must for any valve train upgrade on your LS based engine

LS, PSI PERFORMANCE, SINGLE SPRING, SET 1511ML afr and may have additional optionsPSI LS Beehive Valve Springs are the highest quality single valve springs we can find, utilising factory locks and retainers to keep cost & valve train weight to a minimum. Each and every PSI spring begins with wire that is made from the highest quality Chrome Silicon alloys. Through the use of the latest developments in melt technology, composition control and casting practices, these alloys are held to the strictest cleanliness standards ever