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Q:Does this include gaskets?
A:Yes, the Dynomax Header Collector - (Part No. 88307) includes gaskets. For further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our representatives would be more than happy to assist you.
Q:Come on out there, what's the size?
A:The collector diameter is 3 inches and reducer outlet diameter is 2.5 inches.
Q:what size pipe does this fit?
A:The collector diameter is 3" while the reducer outlet diameter is 2.5". You can select the correct hose accordingly.