A liquid cooled manifold preferably includes a manifold assembly and at least two exhaust pipes. The manifold assembly includes at least one manifold plate, a plurality of fastener o-rings, at least two first pipe sealing o-rings, at least two second pipe sealing o-rings, at least two pipe locking rings. Each exhaust pipe includes an inner pipe and an outer pipe. At least two water slots or two water cavities are formed in the at least one manifold plate to communicate with a water entry tube. Water flows through the water entry tube into a cavity between the inner and outer pipes in each exhaust pipe. The at least two exhaust pipes may be removed from the collector and manifold plates without cutting.