40 Series Stainless Steel - 2.50 Offset In / 2.50 Offset Out - Aggressive Sound " EDGE PRODUCTS These trucks have a factory

These trucks have a factory cooling system tube that goes under the manifold and interferes with the turbo mounting flange of the Howler manifold

Fitting Size 2: 1/8 NPT

Fuel Pressure Port

The Industrial Injection Cummins 2nd Gen Race Compound Turbo Kit utilizes a Silver Bullet 66 and a Borg Warner S480 set of turbos

40 Series Stainless Steel - 2.50 Offset In / 2.50 Offset Out - Aggressive Sound " EDGE PRODUCTS These trucks have a factoryThe 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 409S stainless steel and fully MIG welded for maximum durability.