Quote:
Originally Posted by KellerPerformance
Keller Performance Gen 2 downpipes are 3.5 inch with standard titanium ceracote coating, other downpipes taper to under 3 inches in some places and hurt the performance, but no one talks about it, but it cost cheaper. Let me know if you have any other questions. Thank you !
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Downpipe is primary and midpipe is secondary?