Keep Your Dirty Secret Under Your CarThis is the thing you open to kick some a...Absolutely will increase your HP gain. Instantly move from silence to thunder... 944 above did not need exhaust cut out. He just did not have exhaust system like muffler and catalytic converter to worry...
944 all models heat sheildKeep Your Engine Cooler and Go Faster. Reduce Under-hood Temperature up to 60%Keep Your Engine Cooler and Go Faster. Reduce Under-hood Temperature for up to 60% This is an old racing trick. Moving high heat from under the hood will make your engine work...