2.5" midpipe on 2.25" stock catback? Should I upgrade to 2.5" piping?

Stangg338

New Member
Dec 17, 2019
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So I basically have a full bolt on & cammed 2003 Mustang GT and I just have flowmaster 40s welded to stock catback that's 2.25". My question is, would I hear any difference between the bigger sized piping in terms of sound? I'd be using the same mufflers, just in a 2.5" size but all that adds up so not sure if I should even bother with this mod or leave it alone. I'm running BBK Catted H-Pipe if that helps.
 
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Stangg338

New Member
Dec 17, 2019
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0
1
27
Utah
Edit: Found out I could use a tailpipe extender or even just a clamp but still, should I switch out the catback to 2.5 inch piping?
 

KRUISR

5 Year Member
Apr 16, 2015
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Keep the 2.25" tailpipes for the stealth look. Folks will see OEM tailpipes and assume you have less than you do. Performance wise I don't think it will make a noticeable difference.