Universal Muffler High Flow Muffler 10" x 51" Type 1 Muffler D13-5011 Horizontal or Vertical Applications High Flow Replacement Muffler Studies Have Shown A Minimum Of 1% Increase In Gas Mileage Replaces 10" Diameter Stock Mufflers Works On All Engines...

QPM-1045 M101451 or M66-6188 Paccar Muffler Stack Flex GPM-1045 Pairs with Paccar Curved Stack Pipes SK7-36SBC-L5CL & SK7-48SBC-L5CL   What other exhaust parts will I need? Depending on your current exhaust system, you could need several...

QP-5LC or VK-5 Internal Dampner 5" x 45" Add to your Pipe   PIPE NOT INCLUDED     At Truck Pipes USA we offer you a large variety of exhaust systems for All Kenworth trucks on the road today.  Browse our site and you will see that...

D99-0250 Type 1 Muffler 8" Round 5" Inlet-Outlet 44" Length Body Overall 51" D13-1519 or 04-22530-002 SHIPS FROM CANADA What other exhaust parts will I need? Depending on your current exhaust system, you could need several truck pipes to complete the...

M-1774 Type 1 Muffler for Freightliner 8" Body 55" Long M-1774 What other exhaust parts will I need? Depending on your current exhaust system, you could need several truck pipes to complete the job.  If you are needing to find out what OEM pipe...

Universal Muffler HF-1051 High Flow Type 1 Muffler Horizontal or Vertical Applications High Flow Replacement Muffler Studies Have Shown A Minimum Of 3% Increase In Gas Mileage Replaces 10" Diameter Stock Mufflers Works On All Engines (ISX, 3406E,...