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" 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! - - Replaces the following GM Part Numbers: 12688021, 12702943, 12681437, 12680270, 12681162, 12674813, 12681162, 12676611 - - Also fits 2019+ L5D Duramax (4500/5500/6500) Medium Duty Trucks.
This Part Fits:
Year
Make
Model
Submodel
2021-2025
Chevrolet
Silverado 2500 HD
Custom
2017-2025
Chevrolet
Silverado 2500 HD
High Country
2017-2025
Chevrolet
Silverado 2500 HD
LT
2017-2025
Chevrolet
Silverado 2500 HD
LTZ
2017-2025
Chevrolet
Silverado 2500 HD
WT
2024-2025
Chevrolet
Silverado 2500 HD
ZR2
2017-2025
Chevrolet
Silverado 3500 HD
High Country
2017-2025
Chevrolet
Silverado 3500 HD
LT
2017-2025
Chevrolet
Silverado 3500 HD
LTZ
2017-2025
Chevrolet
Silverado 3500 HD
WT
2020-2025
GMC
Sierra 2500 HD
AT4
2024-2025
GMC
Sierra 2500 HD
AT4X
2017-2021
GMC
Sierra 2500 HD
Base
2017-2025
GMC
Sierra 2500 HD
Denali
2024-2025
GMC
Sierra 2500 HD
Denali Ultimate
2022-2025
GMC
Sierra 2500 HD
Pro
2017-2025
GMC
Sierra 2500 HD
SLE
2017-2025
GMC
Sierra 2500 HD
SLT
2020-2025
GMC
Sierra 3500 HD
AT4
2017-2021
GMC
Sierra 3500 HD
Base
2017-2025
GMC
Sierra 3500 HD
Denali
2024-2025
GMC
Sierra 3500 HD
Denali Ultimate
2022-2025
GMC
Sierra 3500 HD
Pro
2017-2025
GMC
Sierra 3500 HD
SLE
2017-2025
GMC
Sierra 3500 HD
SLT
Wehrli 17-24 Chevrolet 6.6L L5P Duramax 2in Stainless Up Pipe Kit w/Gaskets
$668.33
Any questions?
Address frequently asked questions about this product to minimize any concerns or uncertainties that might deter a customer from making a purchase.
Does it come with a warranty?
Any products listed will have a warranty provided by the manufacturer only. Stealth Diesel is not liable for any warranty. We can assist in warranty claims but we do not provide warranty on items we dont manufacturer. Most products have a 1 year warranty. For more information on warranty, reach out to us or the manufacturer for specific warranty details.
What happens if I have an issue?
We recommend reaching out directly to the manufacturer, but we are availble to assist with any issues or concerns for troubleshooting.
How fast is shipping?
Free ground shipping will be UPS ground, typically 5-7 business days or sooner. Expidited shipping is available on in stock products only.
What's the returns policy?
Most items are returnable unopened within 30 days of purchase. A stocking fee of 20% will be deducted for all returns. Items that are non-refundable are special order, custom made, powder coated, electrical or oversize items. Return shipping is at the expense of the buyer.
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