Limited Time Offer Banner link

Now only 4 HP Tuners Credits are needed to Tune the E41 ECM of GM Duramax L5P (17-23) - Click Here

GM Duramax Exhaust Systems

GM Duramax Exhaust Systems Exhaust

Exhaust systems and race pipes for the GM Duramax Exhaust Systems. A larger-diameter system lowers exhaust gas temperatures and frees airflow as power climbs. Every part is matched to your truck and the rest of your build.

43 products

  • 2011-2015 Duramax 6.6L 4" Polar Exhaust Polar Diesel
    Exhaust
    Polar Diesel

    4-inch Exhaust

    (2011-2015)
    6.6L LML GM Duramax
    From $648.15 USD
  • 2011-2015 Duramax 6.6L 5" Polar Exhaust Polar Diesel
    Exhaust
    Polar Diesel

    5-inch Exhaust

    (2011-2015)
    6.6L LML GM Duramax
    From $737.78 USD
  • 2011-2015 Duramax 6.6L Polar Delete Pipe Polar Diesel
    Exhaust
    Polar Diesel

    Race Pipe

    (2011-2015)
    6.6L LML GM Duramax
    $391.11 USD
Ad Banner
DIESELR SUPPLY CO.

Official Dieselr Supply Co. gear.

Premium Dieselr merch — Everyday gear for people who live diesel.

T-Shirts Hoodies Stickers
Shop Dieselr Supply Co.

Limited runs. When it’s gone — it’s gone.