aFe Large Bore-HD 4 IN 409 Stainless Steel DPF-Back Exhaust System w/Dual Black Tips (49-44086-B) 8004 This diffuser does require drilling

This diffuser does require drilling out the factory rivets and replacing with supplied hardware

Added performance without all the exhaust fumes

Based on technology and above all existing motorsport standards

These combined with the 14 gauge runner pipes make for extreme durability and heat retention

Part number 140838CF includes both AFM and NPP dual mode exhaust valves

aFe Large Bore-HD 4 IN 409 Stainless Steel DPF-Back Exhaust System w/Dual Black Tips (49-44086-B) 8004 This diffuser does require drillingLarge Bore HD 409 SS DPF Back Exhaust System with Split Side Exit (49 44086 B) by aFe. This exhaust is designed to convert the standard single exhaust into an aggressive dual exhaust. Exhaust System Type: DPF Back. Exhaust Tubing Material: 409 SS. Main Tubing Diameter: 4". Exhaust System Sound: Moderate. Get increased exhaust flow, more horsepower and torque, improved performance and lower exhaust gas temperatures with the aFe Large Bore HD DPF Back