WEHRLI WCF100363 01-16 CHEVROLET DURAMAX EXHAUST MANIFOLD KIT W/ GASKETS & HARDWARE

WCFab’s 2001-2016 Duramax Billet Exhaust Manifolds replace the restrictive factory cast parts with high-strength, TIG-welded high-flow billet steel components designed to enhance exhaust flow characteristics, improving turbo spool up, lowering EGTs and increasing power and economy. These manifolds are exhaust port gasket matched and internally divided for optimal flow with OEM or ported cylinder heads. Outlet locations allow full compatibility with OEM style up pipes and are designed to be paired with WCFab’s 2” Stainless High-Flow Up Pipes (sold separately) for optimized performance. Includes new gaskets, ARP 12PT fasteners, and assembly lube for easy install (up pipe fastener kits sold separately). Finished in Black Ceramic Coat rated for 1800ºF.

No tuning required.

Compatible with LB7, LLY, LBZ, LMM, and LML engines.

Replaces the following GM Part Numbers: 12637647, 12624683, 97224587

- Fully TIG Welded, CNC machined billet steel exhaust manifolds
- Finished in Black Ceramic Coat rated for 1800ºF
- Includes new gaskets for manifold to cylinder head and manifold to up pipe
- Includes ARP 12PT Fasteners and washers for installation to cylinder head. Up pipe fastener kits sold separately as part WCF100240.
- 1/8 NPT ports (and optional plugs) included in driver and passenger side manifold for installation of EGT or drive pressure sensors
- No tuning required.

Enhance the performance of your 2001-2016 Chevrolet Duramax with the WEHRLI WCF100363 01-16 Chevrolet Duramax Exhaust Manifold Kit. Crafted by WCFab, these billet exhaust manifolds are designed to replace the restrictive factory components, boosting exhaust flow efficiency for a range of benefits.

Made from high-strength billet steel and TIG-welded for durability, these exhaust manifolds are meticulously engineered to improve turbo spool up, reduce exhaust gas temperatures (EGTs), and enhance both power and fuel economy. The exhaust ports are gasket matched and internally divided to ensure optimal flow, whether you have OEM or ported cylinder heads.

Enjoy an easy installation process with the included new gaskets, ARP 12PT fasteners, and assembly lube. The exhaust manifolds are finished in a robust Black Ceramic Coat that can withstand temperatures up to 1800ºF. No tuning is required for these manifolds, making them a hassle-free upgrade for your vehicle.

This kit is compatible with LB7, LLY, LBZ, LMM, and LML engines, offering versatility for a range of Duramax models. The package includes ports for EGT or drive pressure sensors, adding further customization options to your vehicle.

For optimized performance, pair these exhaust manifolds with WCFab’s 2” Stainless High-Flow Up Pipes (sold separately). Invest in the WEHRLI WCF100363 01-16 Chevrolet Duramax Exhaust Manifold Kit to unlock the full potential of your Duramax engine.