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Vivid Racing Gear 
WCFab's Billet Exhaust Manifolds with EGR Riser Flange replaces 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.
Includes new gaskets, ARP 12PT fasteners, up pipe bolt kit, and assembly lube for easy install. Finished in Black Ceramic Coat rated for 1800°F.
WCFab's Up Pipe Kit replaces the lightweight, leak prone, 1 5/8" OEM up pipes with heavy duty 11 gauge 2" Stainless up pipes. HD Stainless Bellows that will not crack and leak like OEM. Increase Turbo spool-up and decrease EGT's.
NO Tuning required, bolt on! Will fit on stock truck no other modifications or upgrades necessary.
Features:
- Fully TIG Welded, CNC machined billet steel exhaust manifolds
- Finished in Black Ceramic Coat rated for 1800°F
- Includes new gaskets for manifold to cylinder head, EGR flange, and manifold to up pipe
- Includes ARP 12PT Fasteners and washers for installation to cylinder head
- 1/8 NPT port (and optional plug) included in driver side manifold for installation of EGT or drive pressure sensor
- Includes ARP Up Pipe Bolt Kit
- Passenger Side Up Pipe
- Driver Side Up Pipe
- Up Pipe Gaskets (4)
- No tuning required
Fitment:
- Chevrolet LP5 Duramax 2017-2024
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
Wehrli Custom is an aftermarket company that was founded back in 2010 in Sandwich, Illinois. Starting in a two-car garage, they developed performance parts aimed towards various motorsport enthusiasts. With their experience around ATVs, dirt bikes, truck racing, and snowmobiles, they saw the opportunity to create parts that would help improve their ride without spending too much.
Today, the company grew to be one of the most recognizable brands in the motorsport industry and is sought after by racers and enthusiasts everywhere.
Quality Made ProductsThe company creates some of the best products and is known for its high-quality finishes. It is possible thanks to their powder coat shop that includes elevated temperature-resistant ceramic coatings and two curing ovens. They also have a CNC mill and lathes to help create those accurate and precise cuts.
With the best tools at its disposal, coupled with a team of dedicated enthusiasts, Wehrli Custom could cement its position as one of the leading brands in its segment.
Your High Performance Go ShoppingWehrli Custom specializes in high-performance diesel upgrades and custom metal fabrication. They offer a variety of parts and upgrades for various diesel engines such as Duramax, Powerstroke, & Cummins Diesel trucks.
They offer turbo kits and custom performance parts that are custom fabricated and made in the USA. It guarantees that you only get the best products every time,
Purchase Wehrli Custom At Vivid RacingIf you are in the market for high-quality performance parts for your vehicle, then Wehrli customs is the brand for you. To know more about them, visit Vivid Racing and check out their list of products that fit your specific needs.
| Sale price | None |
| Wholesale price | $2,035.55 |
| Shipping |
Weight: 39.40 Length: 30 Width: 11 Height: 11 |
| Product Added At | Tuesday 22 October, 2024 |
| Product Modified At | Friday 11 July, 2025 |
| Imported By | ETLOverride |
| Last Edited By | Turn_API |
| View In Admin |
| Carb Approved | No |
|---|---|
| Carb Number | - |
| Epa Status | N/A |
| Prop65 | Yes |
| Carb Required | - |
| Vendor | Inv | Cost | Retail | Jobber | MAP | Core | Updated | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Turn 14 | $1,725.04 | $2,159.00 | ? | $2,094.23 | ? | 2025-07-11 11:06:21 |
