high flow cat pipe size 2.5? or 2.25?

jdub/oz · #1 10-29-2009, 11:56 PM

purchase magnaflow p#990005hm, not on purpose, but i do have true duals exhaust they are 2.25, have a 5.4 triton. I hope this will be fine i read on alot of this forum about true duals and having 2.25 pipe for best performance

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DarrenWS6 · #2 10-31-2009, 02:59 PM

You'll be alright. As long as you not running anything thicker than 2.5", the 2.25" intermediate pipes will hold a good velocity to help aid low end power.

jdub/oz · #3 10-31-2009, 04:50 PM

thanks i didn't think a .25 of inch made a difference, good tomorrow i will finish my exhaust with magnaflow mufflers that came in yesterday and then tips later, thanks again darren

DarrenWS6 · #4 10-31-2009, 08:00 PM

No problem, Enjoy.

BigBlue5.4 · #5 10-31-2009, 08:54 PM

Back when I got my high-flows put on, regardless of 2.25" or 2.5" the inside of the cat was the same diameter.