Quote:
Originally Posted by WFX
Should I custom design a 2-1 piece thats fits the same size as the phoneix and has the same length as the stock one? OR do I go with a straight 2.5 inch pipe straight from the bottom of the header to the cat? And leave the rest as is 2.5 inch from the cat back!
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If it ain't broken then don't fix it
I would highly recommend fabricating the custom 2-1 piece to the proper specs of your new PP headers. I'm sure it designed that way for a reason after all the R&D that was put into it by the Toyota and PP engineers to provide the proper backpressure and air flow. Its imperiative that an NA application has this working in its favor. On the otherhand turbo charged application is where you will gain due to larger diameter piping and unrestricted air flow.
BTW if you decide to get rid of the OEM 2-1 pipe I'll be willing to send you some $ for it
