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					Originally Posted by djomlas
					
				 
				well if you're dumping before an exhaust with the bypass pipes, whats the point of even bothering with an exhaust for power? 
			
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Exhaust still helps more than you think. Usually with that setup, i've seen 3inch exhaust being used. Turbo and Supercharged cars perform much better with larger exhausts than N/A vehicles, infact, if you go 3 inch exhuast on a N/A car, you might lose power instead of gain it.