Delete, Yes or No


New Member
Apr 1, 2006
My 306 has the "crossover" pipe that goes from cylinder head to cylinder head. My question is: Should I block them off ? Right now they are head to head, but the valve on the passenger side is "blocked" off. The car is not really a street car, mostly weekend racer. If it's "blocked" off is it really serving any function ?
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If you have pulled the cats, then it is ok to remove the air injection system. Do not remove the air pump, or any part of that system if you are running stock type cats. Cats have been known to have very short lives when the air system is defective or removed.