Okay, if thats the way you feel, go get a 4" pipe bent at an exhaust shop.. At the bend, it may cut it down to as small as 3". Just go get a 3" pipe and put it on there. It'll flow the same as the 4" with the 3" bend.
I guess you want to tell me porting and polishing heads and throttle bodies does nothing too. Why does an ORY flow better than a stock Y? It's mandrel bent. No restriction.




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