Royal Purple XPR Extreme Performance Racing Synthetic Motor Oil - 10W40 - 1 Quart (Case of 6) Helmets 980 lb/in linear spring rate

980 lb/in linear spring rate

This kit features tandem Delta 40 and Outlaw mufflers and 4

5/16 in Compression Fitting to 6 AN Male

Includes installed +10 psi higher pressure relief spring and optional lower standard pressure relief spring

1/8" NPT Female Port - For Easy Connection of Steam Tube Plumbing

Royal Purple XPR Extreme Performance Racing Synthetic Motor Oil - 10W40 - 1 Quart (Case of 6) Helmets 980 lb/in linear spring rateRoyal Purples XPR (Extreme Performance Racing) synthetic motor oil is specifically formulated for the demands of multi platform racing environments. XPR is popular in a variety of motorsports including: NASCAR, NHRA, World of Outlaws and Bonneville Salt Flats. Royal Purples premium synthetic motor oil and synthetic lubricants have been designed to improve performance in all conditions and provide cleaner operation, better mileage and decreased oil