The VMP 100 mm MAF housing offers improved airflow over 90mm housings, the 05+ slot-style MAF sensor provides superior signal quality when placed in this housing. 500-550RWHP range when used with 05+ OEM Slot-Style MAF sensor 700+RWHP range when used with 05+ HPX Slot-Style MAF sensor. Fits 96-04 Fords and Mustangs when used with our VMP Plug & Play 96-04 to 05+ MAF sensor adapter harness and fits 05+ with no adapter required. We designed this product with 03-04 Mustang Cobra Terminators and other roots/twin screw style supercharged vehicles in mind. Our 100MM MAF also works great in place of a 90MM Lightning/Cobra MAF (M-12579-L54 or 1L3F-12B579-AB). Great for ported eatons, KB, and Whipple 2.3L or 3.4L blowers. Options: Add an S&B Red 4.5 long AAF design air filter with 5.5" powerstack tip, Add an OEM Slot-Style MAF sensor, Add an HPX Slot-Style MAF sensor, Add a VMP Plug & Play 96-04 to 05+ MAF sensor adapter harness. Housing is annodized gunmetal.