1994-1997.5 Powerstroke 7.3L 4" Turbo Back Exhaust w/ Muffler (421107) Material:Aluminized Not recommended for daily driven

Not recommended for daily driven street applications

because it's tough on tooling

3L IDI whether you're building a tow rig

Lifters/tappets

Supports up to 640RWHP

1994-1997.5 Powerstroke 7.3L 4" Turbo Back Exhaust w/ Muffler (421107) Material:Aluminized Not recommended for daily driven1994 1997. 5 Powerstroke 7. 3L 4" Turbo Back Exhaust w Muffler (421107) Constructed out of 16 gauge aluminized steel or T409 Stainless, this exhaust system is designed to simplify installation with included clamps, preweld contour bends and improved flanges. Enjoy a noticeable boost in performance, lowered EGTs and amplified air flow with this Flo~Pro system. For powerhouse performance, Flo~Pro delivers horsepower you can hear!