| MBRP S6004AL 4" Aluminized Turbo Back Exhaust for 01-07 GM 6.6L Duramax - Includes 5" Tip 4" Turbo back | Aluminized steel exhaust | Mandrel bent tubing | Increased horse power | Lower EGT's | Direct bolt on system | Install's in less than two hours MBRP is the industries leader for high quality, mandrel bent exhaust systems. We have systems to fit every need. Need turbo back, need Cat back, need turbo back but still keep it legal, we have them all. If you need help finding a system to fit your needs, call 1-866-255-7212 Exhaust tips not included |