Quote:
Originally Posted by raven1231
Hey I currently have a manzo V2 uncatted exhaust (greddy evo 3 replica), uncatted front pipe and over pipe, and a Borla UEL header. The car is painfully loud. Does anyone know if either the catted or resonated front pipe are "more quiet"? Thanks! Might even just switch out the exhaust
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It really depends on the type and build of the resonator. I know the HKS (I believe) has 2 resonators in their front pipe, but most others have one. Hi flowing cats will typically do a bit in the noise reduction as well, but you also won't have as much air flow as a straight through design with no cat.
Disclaimer: I'm no expert on exhaust, just going from personal experience and past knowledge.