40 Series - 2.50" IN(D)/OUT(D) - Aggressive Sound black This product is compatible with

This product is compatible with trucks equipped with an S and S Diesel Motorsport DCR conversion kit or the S&S Diesel Motorsport CP4 Disaster Prevention Kit

The patented air filter to housing interface allows for maximum filter size which increases the available air volume while simplifying the installation process

A set of lifted

379258300H

40 Series - 2.50" IN(D)/OUT(D) - Aggressive Sound black This product is compatible withThe 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.