Replace the lightweight, leak prone, 1 5/8" OEM up pipes on your 2017-2022 Newer Duramax with these heavy duty 11 gauge 2" Stainless up pipe kit. HD Stainless Bellows that will not crack and leak like OEM. Increase Turbo spool-up and decrease EGT's. This kit is for use with factory exhaust manifolds.
Fully compatible with WCFab Billet Exhaust Manifolds (Part Number WCF100373).
INCLUDES GASKETS! -NO Tuning required, bolt on! -Will fit on stock truck no other modifications or upgrades necessary!
Also fits 2019+ L5D Duramax (4500/5500/6500) Medium Duty Trucks.
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