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Ships within 48 hours · Estimated delivery Aug 21 - Aug 26
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Description
Wehrli Custom Fab WCF100373 Billet Exhaust ManifoldsGet the Wehrli Custom Fab WCF100373 Billet Exhaust Manifolds for your Chevy GMC Silverado Sierra equipped with an L5P Duramax engine. The billet Exhaust Manifolds with EGR Riser Flange replace the restrictive factory cast parts with high strength, TIG welded high flow billet steel components designed to enhance exhaust flow, and improve turbo spool up, while lowering EGTs. These exhaust manifolds are exhaust port gasket matched and internally divided
Get the Wehrli Custom Fab WCF100373 Billet Exhaust Manifolds for your Chevy/GMC Silverado/Sierra equipped with an L5P Duramax engine. The billet Exhaust Manifolds with EGR Riser Flange replace the restrictive factory cast parts with high-strength, TIG-welded high-flow billet steel components designed to enhance exhaust flow, and improve turbo spool up, while lowering EGTs.
These exhaust manifolds are exhaust port gasket matched and internally divided for optimal flow with OEM or ported cylinder heads. The outlet locations allow for compatibility with OEM style up-pipes. This manifold set includes new gaskets for the exhaust manifolds to cylinder heads, EGR flange, and the manifold to up-pipe. Also included is a set of ARP 12-point fasteners for manifold to cylinder head connection (up-pipe bolts not included). Also compatible with L5D 4500/5500/6500 Medium Duty Trucks.
Features:
- Fully TIG Welded CNC Machined Billet Steel
- Black Ceramic Coat Finish Rated For 1800 Degrees
- 1/8" NPT Port (Includes Optional Plug) On Driver Side
- Direct-Fit Upgrade, No Tuning Or Modifications Required
Note: Up-pipe fasteners not included.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 5
Well-made and great size for the price!
Color: blue black
Very tough product, no odor of plastic, good toy for outside, perfect for medium or large dogs. Noise isn't too bad and the color is cute as well. Can't destroy this toy!
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Durable Great for aggressive chewers
Color: Blue
Will make one whole room smell like fake bacon, but my dogs love it and it’s super strong and durable. I have a lab mixed with rotty and a full lab so it’s a perfect match.
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Reviewed in the United States on June 3, 2026
★★★★★ 5
Indestructible bully toy
Color: Blue
We have a bully that chews through everything, believe it when I say, he loves this n it is still in one piece. Where I put treats in it or not. He’s also able to play tug of war with is brother with this toy. I will be buying additional ones!
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Reviewed in the United States on May 16, 2026
★★★★★ 4
Durable, Dogs love it
Color: Red
My Frenchie is a crazy chewer and can chew up a nylabone in a day, so I was looking for something that would last longer. So far this is holding up, and is pretty durable. Both my dogs like it a lot, it’s easy for them to grasp, and chewable but still very tough material. I suspect at some point it’ll wear down, but not for a while. The size was just as described / expected. Not too small and not too big
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Reviewed in the United States on May 23, 2025
★★★★★ 5
Great for aggressive chewers!
Color: Blue
Our aggressive chewers love these! Very durable.
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Reviewed in the United States on June 8, 2026