Shipping Estimate
USA
- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
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Description
Wehrli Custom Fab WCF100344-CB 4" Intake Kit W/Air Box - Candy BlueGet the Wehrli Custom Fab WCF100344 CB 4" Intake Kit W Air Box Candy Blue from GAP for your GM 6. 6L Duramax today. 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
Get the Wehrli Custom Fab WCF100344-CB 4" Intake Kit W/Air Box - Candy Blue from GAP for your GM 6.6L Duramax today. 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:
- Candy Blue 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
4.5 ★★★★★
Based on 2152 reviews
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Product Reviews
★★★★★ 5
Sweet dreams with Beckham Hotel pillows!
Size: Queen (Adjustable Foam)
Pillows come overstuffed so you can adjust the amount of foam and support. I took extra foam out for use in other pillows or for comfort adjustment. Outside of pillow is washable and just zips to get on and off. Inside of pillow also zips for easy access to foam. Pillow is great for head and neck positioning for optimal posture, alignment, and unloading of weight on neck and shoulders for muscle relaxation and pain relief for deeper sleep.
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Reviewed in the United States on March 1, 2026
★★★★★ 4
Good quality and adjustable comfort
Size: Queen (Adjustable Foam)
Well-constructed and packed with lots of foam pieces. As received, the pillow is firm and well stuffed. I would up removing a good amount of stuffing for a custom fit -- as recommended by the pillow maker. Now, the pillow is extremely comfortable.
Due to being able to customize the fill and making this pillow comfortable to my sleeping style, I am happy with this purchase and would recommend its purchase.
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Reviewed in the United States on April 9, 2026
★★★★★ 5
Love this pillow it is amazing
Size: Queen (Adjustable Foam)
Excellent pillow very comfortable
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Reviewed in the United States on June 1, 2026
★★★★★ 5
I like it
Size: Queen (Adjustable Foam)
I have been trying to find the "perfect" pillow. I am not sure if this would count as the perfect pillow, but it is better than my previous pillow. I have not been waking up with a stiff neck and soreness across my shoulders. It is more firm than I thought it would be. But so far, so good.
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Reviewed in the United States on December 25, 2025
★★★★★ 3
Decent firm pillow
Size: Queen (Adjustable Foam)
I've been using the shredded foam pillow since January. At first it was too packed/firm, so I had to remove some of the stuffing from mine. When fully full, it is a chore to get it in/out of our standard pillow cases.
Over time, the pillow has developed a divot from where my head rests the most, so I'll need to fully remove/fluff/reinsert the foam to get it back into shape. Overall, I find the comfort of this pillow just okay. It absorbs your head heat even in the winter, so if you prefer a cool pillow, I don't recommend it. It does seem to be a good quality pillow otherwise. I expect I'll be able to use this one for a few years without it falling apart. It doesn't smell bad either.
My husband really likes the pillow, but I've also seen him sleep comfortably on very old pillows that have turned into pancakes... so do with that information what you will.
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Reviewed in the United States on June 25, 2025
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