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Valvoline Full Synthetic 15W-40
This full flow exhaust outlet flange is built for OBS 7
It costs a lot more to do it this way
9L 12V Mahle POWERPAK Cast Piston Set of 6 - 4
155# Cummins 12valve springs
2015.5-2016 Duramax LML 4" Downpipe Back Exhaust w/ Muffler (431018) Material:Stainless Valvoline Full Synthetic 15W-402015. 5 2016 Duramax LML 4" Downpipe Back Exhaust w Muffler (431018) 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! IMPORTANT NOTE: These kits