SKU: 4138351685

2015-2016 Chevrolet / GMC Deluxe Max Air Flow Bundle HSP Diesel

Sale price$1822.93 Regular price$2025.48
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Ships within 48 hours · Estimated delivery Sep 3 - Sep 8

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Description

2015-2016 Chevrolet / GMC Deluxe Max Air Flow Bundle HSP DieselLooking for a kit that has it all? Featuring a mandrel bent 4 inch intake tube for massive air flow gains, with HSP's signature heat shield box eliminating unwanted hot air entering the cold air intake. For every 1 degree increase of intake air temperature will result in a 3hp loss. This kit also features HSP's high flow turbo mouthpiece. This turbo mouthpiece will give you the ability to reroute your factory PCV system and remove the factory

Looking for a kit that has it all? Featuring a mandrel bent 4 inch intake tube for massive air flow gains, with HSP's signature heat shield box eliminating unwanted hot air entering the cold air intake. For every 1 degree increase of intake air temperature will result in a 3hp loss. This kit also features HSP's high flow turbo mouthpiece.

This turbo mouthpiece will give you the ability to reroute your factory PCV system and remove the factory resonator box, eliminating unwanted engine oil gumming up the turbo and intake system. Featuring 3 inch mandrel bent hot side and cold side tubes with our max flow Y-bridge and turbo mouthpiece.

The factory hot side intercooler tube on your 2011-2016 Duramax is notorious for failure. The two piece design from the factory has crimped on boots that have a tendency to fail under heat and pressure, it's only a matter of time before it leaves you on the side of the road.

The factory cold side also has its limitations and is made of plastic with an unreliable clamping system. This kit replaces all the failure prone piping and will come with our race proven 5 layer silicone boots to give you years of worry free driving. Companied with our Max flow Y-bridge and turbo mouthpiece you can expect to see gains in performance while keeping engine temps down.

To help get the exhaust gases out of the engine, this kit includes our factory replacement 2 inch up pipes. Our up pipes use .120 inch wall tubing with the toughest bellows on the market to ensure they last as long as your truck. Also included is our factory replacement coolant tank to keep your engine bay looking good. Our coolant tank features an all aluminum design with an incorporated low coolant sensor.

To top it all off we added our upper coolant tube to add a little extra color to your engine bay. This tube will also give additional room for dual pumps eliminating the possibility of the hose rubbing the wheel.
Details:

  • 2015-2016 Chevrolet / GMC
  • 4 Inch intake tube
  • 3 Inch Mandrel bent hot and cold side
  • Race Poven 5 Layer Silicone Boots
  • Candy Blue Finish
  • Made In The USA
  • Sold As A Kit
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 4138351685

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4.7 ★★★★★
Based on 11 reviews
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Verified Purchase
Jim Schuster
Lake Worth, US
★★★★★ 3
Good quality but need to be aware.
Color: White, Size: XX-Large
Good quality but know Sizes run small so size up when ordering if you are a US customer. Also chest is tight even when sizing up.
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Reviewed in the United States on June 2, 2026
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Verified Purchase
Lindsay
Pawtucket, US
★★★★★ 5
Upsize
Color: Pink, Size: XX-Large
Knowing to upsize before I bought the shirt was a good thing to know. Otherwise, it is a very nice shirt
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Reviewed in the United States on April 30, 2026
S
Verified Purchase
S. E. Jordan
Lexington, US
★★★★★ 5
As I expected, Manly
Color: Blue, Size: Medium
this is a beautiful well made shirt
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Reviewed in the United States on April 8, 2026
T
The Couple
Lake Worth, US
★★★★★ 5
No flaws, not high end
Color: Pink, Size: Medium
I nabbed this for my in shape 14 year old son who had an upcoming wrestling banquet. It fit very true to size for him however as a low-mid grade dress shirt it had little flex or mobility across the chest and that’s ok, this is an entry level dress shirt and perfect for this and similar events. The color was vibrant and well saturated, and the fabric itself was thin enough for some transparency but thick enough to be considered medium weight. It would not be a cooling dress shirt. It did not have a soft hand, rather a sturdy rougher feel akin to a dress shirt a restaurant server would wear and laundry frequently which is also ok because it is exactly what a polo in this range should be. If you are looking for a flexible chest and soft touch you will need a better fabric blend and you pay a lot more for that. The buttons were nice and collar looked good. I would recommend this for any average event or occasion or even for work. If you are looking to impress on an interview or a date or during high heat you might need to look elsewhere. For what it is it’s perfect. Buyer and shirt need to remember this and keep it in its shirt lane.
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Reviewed in the United States on April 18, 2026
J
Jeff
Pawtucket, US
★★★★★ 4
Good shirt, not great, but it was never trying to be
Color: Navy Blue, Size: Medium
Let’s start with the fabric. The 50/50 cotton-polyester blend sounds like a compromise, and I suppose it is — but it’s a good one. You get enough cotton to feel like an actual shirt and enough polyester to keep things from turning into a sweat tent in the heat. It holds its shape after washing. No complaints. The collar is a genuine highlight. The pin tips keep the points flat and symmetrical, which is a small thing until you’ve owned a shirt where the collar curls after two washes. You’ll notice it. There’s also a hidden plaid print under the collar — a subtle detail that’s only visible when unbuttoned. Unnecessary, but charming. Fit is true to size. Order what you normally order. It’s versatile enough to tuck in for the office or wear loose on the weekend. Not going to replace your best Oxford. But at this price, it was never trying to.
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Reviewed in the United States on March 27, 2026

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