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gramicci101 · 04-15-2014, 03:50 PM

Why would the cat go from a 2.25" pipe to a 2.5" pipe? Especially as a lot of aftermarket overpipes are 2.5", that seems like an unnecessary restriction to go back down to 2.25".

04-15-2014, 03:50 PM	#9
gramicci101 Off Topic Join Date: Feb 2014 Drives: 2014 Subaru BRZ Limited Location: Vegas, baby! Posts: 4,610 Thanks: 2,369 Thanked 4,243 Times in 2,170 Posts Mentioned: 43 Post(s) Tagged: 3 Thread(s)	Why would the cat go from a 2.25" pipe to a 2.5" pipe? Especially as a lot of aftermarket overpipes are 2.5", that seems like an unnecessary restriction to go back down to 2.25".