40 Series - 2.25" IN(C)/OUT(O) - Aggressive Sound 1992-buick-skylark-custom-esi5250511 5" block is for use

5" block is for use on 2017-2023 Ford F250 / F350 Super Duty 2WD/4WD trucks with 1-piece driveshaft

Rated for 3 amps max per diode block

These UV treated fender flares ship in flat-black or can easily be painted to match your vehicle

BR13 22x10

Whether in torrential rain

40 Series - 2.25" IN(C)/OUT(O) - Aggressive Sound 1992-buick-skylark-custom-esi5250511 5" block is for useThe Original 40 series muffler delivers an aggressive exterior and interior tone. If you're looking for that original Flowmaster sound this is the muffler is for you. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.