Wehrli

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Wehrli 17-19 Duramax L5P Stage 2 High Flow Bundle Kit - Illusion Blueberry
$1,552.99
$1,552.99
$1,600.00
The OEM diameter and we experienced a 25HP Gain with our 4 in. turbo inlet when used with a Max Effort Tune. High quality hardware, silicone boot, seals, and stainless steel t-bolt clamps ensure op...
2% Off
Wehrli 17-19 L5P Duramax Billet Anodized Transmission Cooler Thermostat Bypass Plug
$59.99
$59.99
$61.00
As a direct replacement for the failure prone OEM thermostat, the Transmission Cooler Thermostat Bypass Plug can drop fluid temperature from 15-50 degrees F by reducing fluid flow restriction to th...
3% Off
Wehrli 17-24 Chevrolet 6.6L L5P Duramax 2in Stainless Up Pipe Kit w/Gaskets
$683.99
$683.99
$705.00
Replace the lightweight 16G, leak prone, 1 5/8" OEM up pipes on your 2017-2025 6.6L L5P Duramax equipped Chevrolet Silverado or GMC Sierra 2500 / 3500 HD truck with these heavy duty 11 gauge 2" Sta...
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Wehrli 17-24 Chevrolet Duramax Billet Exhaust Manifold & Stainless Up Pipe Kit w/ Gaskets & Hardware
$2,158.99
$2,158.99
$2,225.00
WCFab's 2017-2025 L5P Duramax Billet Exhaust Manifolds replace the restrictive factory cast parts with high-strength, TIG-welded high-flow billet steel components. These manifolds are exhaust port ...
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Wehrli 17-24 Chevrolet/GMC 6.6L L5P Duramax 3.5in Down Pipe
$334.99
$334.99
$345.00
Replace the restrictive crushed factory down pipe on your 2017-2025 L5P Duramax with this 3.5" Down Pipe for improved exhaust flow. Connects to the DOC outlet flange behind the OEM turbo and mates ...
2% Off
Wehrli 17-24 Chevrolet/GMC 6.6L L5P Duramax Up Pipe Bolt Kit
$60.99
$60.99
$62.00
The WCFab L5P Up Pipe Bolt Kit is comprised of 12 specially selected high strength ARP fasteners and matched washers with a pack of assembly lube are designed as an upgrade to the smaller and failu...