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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16
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Description
Wehrli Custom Fab WCF100344-GRY 4" Intake Kit W/Air Box - WCFab GreyChange the intake and air box on your GM 6. 6L Duramax today and replace them with the Wehrli Custom Fab WCF100344 GRY 4" Intake Kit W Air Box WCFab Grey from GAP. This high flow, fabricated aluminum intake pipe and air box enclosure with dry filter assembly replaces your diesel's restrictive plastic factory parts for improved engine performance. The new design significantly increases air flow to your turbo, producing improved horsepower and torque,
Change the intake and air box on your GM 6.6L Duramax today and replace them with the Wehrli Custom Fab WCF100344-GRY 4" Intake Kit W/Air Box - WCFab Grey from GAP. This high-flow, fabricated aluminum intake pipe and air box enclosure with dry filter assembly replaces your diesel's restrictive plastic factory parts for improved engine performance. The new design significantly increases air flow to your turbo, producing improved horsepower and torque, quicker throttle response, and cooler intake temperatures by drawing cold air through the hood Ram Air duct and inner fender. All aluminum construction features large diameter 4" piping with smooth aerodynamic bends to improve intake air velocity and volume and provide more aggressive engine and turbo sound during acceleration. High-quality hardware, silicone boot, seals, and stainless-steel t-bolt clamps ensure optimum durability and ease of installation. The removable air box lid element allows for easy visual inspection and maintenance of your WCFab filter with an included hydrophobic pre-filter cover to help keep your MAF sensor, turbo, and engine airways contaminant-free. The critical ram air duct seal has been moved to the bottom of the hood for a clean engine compartment appearance.
Features:
- WCFab Grey Powder Coat Finish
- 4" Intake Pipe
- Air Box & Lid Constructed Of 10G Aluminum Sheet
- Dry Air Filter
- Outerwear's Pre-Filter Cover
- Hardware
- Seal For Connection To Ram-Air Port On Hood
- High-Quality Silicone Boot
- Stainless Steel T-Bolt Clamps
- Powder Coating
- Installs Easily With Basic Hand Tools.
- No Tuning Required, Bolt-On
- Compatible With Stock Trucks. No Other Modifications Or Upgrades Necessary!
- Made In USA
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
4.6 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
Great addition to my minimalist kitchen!
Color: Black
This kitchen sink sponge holder is simple yet highly effective. It keeps the sponge neatly in place, allows it to dry quickly, and makes the sink area look tidy. The sturdy material and easy-clean design make it a great little addition to any kitchen.
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Strong sturdy reliable and versatile
Color: Black
This is a great little side piece to use for your kitchen sink or bathroom mine is in my kitchen sink it works great it sits on the side it's the perfect length holds my scrubber soap and other stuff I need instead of using a makeshift bowl. It's sturdy rust-resistant and I put it through the tests it gets wet every time I do which is every day in this house. You can use it for just about anything. There are no suction cups on it but there is a gray under it that catches all the loose water which is also very convenient. It looks modern and compliments most sinks and kitchens well
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Reviewed in the United States on September 27, 2025
★★★★★ 4
Good Quality but Limited Space for Multiple Bottles
Color: Black
This organizer is decent quality, but it ended up being smaller than I expected. For reference, I usually keep the following items at my sink:
• Dawn squeeze dish soap
• Mrs. Meyers hand soap
• Dr. Brown’s bottle soap
• A sponge
• A bottle brush
All of these items fit comfortably in my previous sink caddy that I bought on Amazon. Unfortunately that one eventually started peeling and rusting, which is why I replaced it.
With this one, the narrow section on the left side limits how much you can actually store. It works well for the brush, but it reduces the usable space for bottles. Because of that, fitting multiple soap bottles plus a sponge is a little tight. I also think my previous organizer was slightly wider, which made a bigger difference than I realized.
One feature I do like is the removable plastic tray on the bottom. It catches water well and keeps the counter from getting messy, which is a nice touch.
Overall, it’s usable and I will keep it, but if you normally keep several bottles and tools at your sink like I do, I would recommend paying close attention to the measurements before ordering.
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Reviewed in the United States on March 10, 2026
★★★★★ 5
Fits well in any space
Color: Black
This is a great little caddy. It sits nicely in the small area I have and keeps all my stuff organized. The tray comes out to clean it.
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Reviewed in the United States on May 3, 2026
★★★★★ 5
Wonderful size and holds the essentials.
Color: A-silver
I have no room for something bigger because I have a drop in sink. This is working wonderful. There is room for a scrubby, sponge my stove top cleaner and scrapper for stove. The tray below to catch any water is great and very easy to remove and drain. It takes a second to do. Great size as it is not huge but holds what I need.
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Reviewed in the United States on March 13, 2026