Mustangs unlimited has one, but I've heard people having problems with all the sensors, etc. I really didn't notice much of a difference between adding a K&N filter and removing the air silencer and the CAI from MU. It's probably cheaper to go with the just filter and silencer anyway...
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1989 Ford Mustang Notch 2.3L 5-Speed, Sonic Blue w/ 8" Painted White Stripes, 3" Fiberglass Cowl Hood, 92-93 SE Style Spoiler, 17x9 Chrome '95 Cobras, MU CAI, '84 SVO Rear Sway Bar, Eibach Pro-Kit, MM STB, PA 3G, Alpine/Kenwood/Infinity Audio,...
2002 Mustang GT Coupe
4.6L Auto, Black w/ Black Leather Interior, Alpine/Infinity/Kenwood Audio, Mach 1 Grill Delete, Mach 1 Chin Spoiler, WE Sequentials, Trickflow Plenum, MAC Filter, Borla Mufflers, MAC O/R H,...
1992 mustang 2.3 L Cold Air Intake? 
