Closed Box with Scoop (350603, 3506063) 2001-2007c Silverado/Sierra 25 - Volant Performance

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Closed Box with Scoop (350603, 3506063) 2001-2007c Silverado/Sierra 2500/3500HD 6.0L V8

5 reviews
Filter Guide

Filter Options
  • Volant air intake systems utilize a high-velocity venturi filter adapter which provides a smooth transition through the MAF sensor into the intake tube for a much needed airflow improvement over the factory rubber tubing and resonator box. Volant's Cool Air box is larger than the factory unit and incorporates a larger opening to collect a higher volume of colder ambient air.

    Filter Options Include:

    • Choose a PowerCore® for the best filtration on the market with 100,000 Maintenance Free Miles of Driving and perfect for hard conditions
    • Choose a Drytech Dry Filter for improved performance, easy soap and water maintenance, ideal for all cars and trucks
    • Choose a MaxFlow 5 Oiled Filter for improved performance with the comfort of oiled filtration technology for those looking for horsepower
    Filter Type

    Drytech Dry Filter

    MaxFlow 5 Oiled Filter
    Filter Part # 61517 5160 5119
    Pre-Filter Part # 51921 51906
    Filter Maintenance No Maintenance Soap & Water 5100

    NOTE: Track use Only

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Customer Reviews
2.4 Based on 5 Reviews
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Filter Reviews:
    07 Apr 2024

    Could be much better

    Looks great, fitment for such an expensive product could be much better. I had to drill out one of the holes in order for the maf to mount to the side of the air box. Then when I went to install the air box in the engine bay I could only get one mounting bolt to line up to be able to secure it. For such an expensive intake I was hoping for something that fit much better and didn't require modification. In order to get the intake box to fit I would need to drill another hole into the bottom.

    Kyle G.
    United States United States
    08 Nov 2022


    The item seems to be great so far I haven't noticed an increase in fuel mileage but I think a decrease in mileage. Overall appearance is great easy to install. I think a couple more screws in the top plate for the filter would be better. No sound differences

    Jonathon S.
    United States United States
    12 May 2022

    Enhanced breathing

    This product is installed on an '02 CC 2500HD 6.0 with a performance free flowing exhaust. Now the problem with a free flowing exhaust is it can expel the gasses but the engine is like an Olympic runner running a race breathing through a straw, it's very restrictive and this product just opened up the intake of air so it can run better. Coupled with the lower air scoop to ram air into the air box providing a positive pressure so it's not ******* air at atmospheric pressure but rather cold air pushed into the engine. If you see how the other "cold air" systems work the air box isn't closed in so it's not a true cold air design, it still draws under hood heat from the engine bay.

    Eric W.
    United States United States
    22 Nov 2021
    JULIO V.
    United States United States
    30 May 2021

    Bad customer service Multiple parts didn’t fit Missing screws. I ended up reaming out the throttle body tube and making it fit. Bought some extra bolts. It’s nice at this point just harder than and intake should be

    Tyler F.
    United States United States

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