RB Twin Cam Pro Series Cooling Head drain E91 KPro upgrades should use this

KPro upgrades should use this form

the included air filter oil remains suspended in the pleats of the cotton filter material

Engine protection from lean air fuel ratios

These race-only Xtreme Performance (XP-Series) Tri-Lecular main bearings are proven track-tough to handle the ground-shaking power of your race engine

RB Twin Cam Pro Series Cooling Head drain E91 KPro upgrades should use thisCoupled with our latest release of our Pro Cas with 20 fitting we have now finalised a solution for a matching high flow rear head drain designed to maximise flow though the cylinder head. Dry block with wet head type combinations would benefit extremely by allowing high volume cylinder head cooling.