Maggie 14258, 14386 or 14221
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From: Maryland
Maggie 14258, 14386 or 14221
I'm looking to replace my FM 40 series SI/DO (2.5 SI/2.25" DO) with one of the following Magnaflow Mufflers:
14258 (Direct replacement for FM)
14386 2.5" DI/DO
14221 3" SI/2.5" DO
I'm leaning heavily towards the 14258 so I don't have to change the piping already in place. My question is: Do the 14386 or 14221 provide greater perfomance gains than the 14258? My truck is a '05 F-150 STX 4X4 R/C with 4.6l.Thanks!
14258 (Direct replacement for FM)
14386 2.5" DI/DO
14221 3" SI/2.5" DO
I'm leaning heavily towards the 14258 so I don't have to change the piping already in place. My question is: Do the 14386 or 14221 provide greater perfomance gains than the 14258? My truck is a '05 F-150 STX 4X4 R/C with 4.6l.Thanks!
Last edited by netspec; Feb 7, 2007 at 02:14 PM.