K&N Cold Air Intake - High-flow, Aluminum Tube - GMC SIERRA 2500/3500HD V8-6.6L DSL 2015-2016

K&N Cold Air Intake - High-flow, Aluminum Tube - GMC SIERRA 2500/3500HD V8-6.6L DSL 2015-2016

Marsoni

M251S

$247.50

Get it in 3 business days with 1 day shipping. Friday, May 29

K&N Cold Air Intake - High-flow, Aluminum Tube - GMC SIERRA 2500/3500HD V8-6.6L DSL 2015-2016Guaranteed to increase horsepower and torque. Mandrel bent aluminum intake tube paired with oversized oiled cotton air filter. Engineered to provide high airflow and exceptional filtration. Replaces factory air filter and intake tube. Filter only requires cleaning every 100,000 miles under normal highway driving conditions. Typical installation can be completed in 60 minutes or less with simple hand tools. No Hassle Lifetime Limited Warranty. Will not

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There is a strong smell or roasted coffee beans but since I started using this product my edges are healthier and the hair at the middle of my head that has been struggling to grow is gaining some length. The product itself can get hard depending on the temperature of your room but if you use it as directed the texture isnt so bad. The oil is thick and not very greasy or difficult to wash away. Definitely effective. 100% will recommend.

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Reviewed in the United States on December 16, 2025

Verified Purchase

Fort Morgan, US

★★★★★ 5

It's Working

Scent: Smoky coffee, Size: 4 Fl Oz (Pack of 1)

I like how it softens and protect hair. I am using sparingly on my scalp and have not used enough to see hair growth yet. I have had it for a month but do not use daily. I am growing my grey hair out and I have noticed that some of the white hairs are more salt and pepper now so it naturally darkens hair. My friend who told me about the product has been using it longer and her grey hairs are pretty much unnoticed by the natural darkening effect, blending enough to give her a light brown look. I have extremely fine thin fragile hair so I leave it on instead of rinsing or washing it out per instructions, that is another reason I do not use daily on hair and scalp. So far I have not had any negative side effects by using sparingly and leaving in until weekly wash. There is a strong smokey smell but not overwhelming for me and the scent dicipates within an hour or less.so I am not bothered by it. After using product on my hair, I rub a little on my nails & cuticles. It appears to help, as my cuticles are a lot healthier now.

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Reviewed in the United States on February 1, 2024

Verified Purchase

Bstew

Whiting, US

★★★★★ 4

Ash vs. Moisture/Success?

Scent: Smoky coffee, Size: 4 Fl Oz (Pack of 1)

The product feels great on the skin and moisturizes well. Although, don't be fooled by the smokey coffee detail. I'm an avid expresso bean grinder and drinker, this is no coffee. Smells like strong chain smokers favorite corner of the house on a stressful day. Imagine ash trays and Jojoba blended. Now that that's explained, it genuinely feels great on the skin/beard/scalp. Unfortunately, I am unsure how long my wife will tolerate this as a nighttime routine.

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Reviewed in the United States on September 9, 2025

Verified Purchase

denise varnell

Lowell, US

★★★★★ 5

Strong coffee smell. Might not be be compatible for everyone. However, product is really good.

Scent: Smoky coffee, Size: 4 Fl Oz (Pack of 1)

Love this product. May not be compatible for someone who doesn't like smell of coffee that does not detract from the product. it's really good for hair.

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Reviewed in the United States on January 5, 2026