Competition Style T6/12v Competition manifold with straight T6 flangeĀ on 10 degree angle Login to your Dealer account for pricing. SKU: COMPT612V Category: Cummins Competition Header Related products Competition Style T4/24v w/Waste GateLogin to your Dealer account for pricing. Competition Style T4/12V w/Twin Waste GateLogin to your Dealer account for pricing. Competition Style T4/24vLogin to your Dealer account for pricing. Competition Style T4/24v w/Twin GatesLogin to your Dealer account for pricing.