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Marsflex 4' Cold Air Intake Kit & Filter Heat Shield for Chevy for GMC 1999 2000 2001 2002 2003 2004 2005 2006 Silverado Sierra Tahoe Avalanche Suburban Yukon Sierra 1500 2500 V8 4.8L 5.3L 6.0L

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$56.99

$ 26 .99 $26.99

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About this item

  • Application-Cadillac: Marsflex cold air intake kit fit for 2002-2006 Escalade 5.3L V8 / 2002-2006 Escalade 6.0L V8 / 2002-2006 Escalade EXT 6.0L V8 / 2003-2006 Escalade ESV 6.0L V8
  • Application-Chevy: Marsflex cool air intake fit for 2002-2006 Avalanche 1500 5.3L V8 / 2000-2006 Suburban 1500 5.3L/6.0L V8 / 2000-2006 Suburban 2500 5.3L/6.0L V8 / 2000-2006 Tahoe 4.8L/5.3L V8 / 1999-2006 Silverado 1500 4.8L/5.3L/6.0L V8 / 1999-2006 Silverado 1500 HD 4.8L/5.3L/6.0L V8 / 1999-2006 Silverado 2500 5.3L/6.0L V8 / 1999-2006 Silverado 2500 HD 5.3L/6.0L V8 / 2001-2006 Silverado 3500 6.0L V8 / 2003-2006 Silverado SS 6.0L V8
  • Application-GMC: Marsflex air intake system fit for 1999-2006 Sierra 1500 4.8L/5.3L/6.0L V8 / 1999-2006 Sierra 1500 HD 4.8L/5.3L/6.0L V8 / 2007 Sierra 1500 Classic 4.8L V8 / 1999-2006 Sierra 2500 5.3L/6.0L V8 / 1999-2006 Sierra 2500 HD 5.3L/6.0L V8 / 2001-2006 Sierra 3500 6.0L V8 / 2002-2006 Sierra Denali 6.0L V8 / 2001-2006 Yukon Denali 6.0L V8 / 2001-2006 Yukon Denali XL 6.0L V8 / 2002-2006 Yukon Denali XL 1500 5.3L V8 / 2002-2006 Yukon Denali XL 2500 6.0L V8 / 2000-2006 Yukon 4.8L/5.3L V8
  • Boost Motivation: The performance cold air intake kit design aims to increase 8-12% horsepower and 6-12% torque, and the power that bursts out in an instant is relatively improved. A larger air intake means that the engine inhales more oxygen in the air at the same time, so that the engine can burn more fully. These design can help your engine to draw in more cold air resulting in better throttle response and higher explosive horsepower output,and creating an attractive intake noise
  • High Flow Intake Air: Marsflex cold air intake systems provide a less restrictive path for airflow, increasing the volume of air .Cold air intakes are designed to flow more efficiently than your car's from-the-factory. The shape of the filter is a cone, and the shell is made of high-strength aluminum alloy designed into a funnel shape. After testing, this structure can maximize the air intake and form a perfect ratio with the filterability of the product
  • Stable Performance And Easy Installation: The intake pipe is made of aluminum alloy, which is more resistant to high temperature, corrosion and heat dissipation than the original rubber pipe, effectively reduces the air intake resistance, and makes the engine burn more fully. Marsflex cold air intake kit is designed according to the location and shape of the original air intake kit, so it is very convenient to install and the service life is up to 200,000 kilometers
  • Washable And Reusable: Every 5,000 kilometers, it is recommended to remove the inner filter element. You can wash and dry it with water mixed with detergent, or blow off the dust attached to the filter element from the inside of the filter element with an air gun
  • Multi-layer Fiber Filter And Heat Shield: The kit includes a steel heat shield that features a durable carbon-black powder coating for long lasting good looks.The filter medium adopts high-density multi-layer fiber with excellent dust accumulation effect, and the filter screen is made of alloy metal, which is not easy to be oxidized, which greatly prolongs the service life of the product
  • Warranty: 1-year warranty. Marsflex is always on your side, any problem you meet, emall me at once, and we will reply and solve your question as soon as possible



Product Description

APEN23001
APEN23001
APEN23001
APEN23001
APEN23001

Juan Pacheco
2025-07-25 11:41:49
Looks great , ease of installation not bad for the price
Jason C
2025-05-16 21:54:10
The packaging is not great. The vibration damper mount bracket of the tube was protruding from the cardboard box, though undamaged. One of the plates had a dented corner into where it mates with the other plate. It was not difficult to straighten and looks are not important to me, just be aware that packaging is somewhat inadequate.There are not instructions, though if you have any experience or enjoy puzzles, installation is not too difficult. It might be best to first install the plates and vibration damper, then attach the filter to the MAF and putting the filter in place before attaching to the tube. Installing the filter last was troublesome. Removing for cleaning will be interesting.Having only conducted one short test drive, performance improvements don't seem too noticeable. However there was a definitive difference in the sound during acceleration onto the highway. More driving will be needed for more information concerning performance.The weight is noticeably less than stock, though the actual weights have not been measured.Overall, for the price, this is not upsetting at all.
Robert Bandy
2025-04-13 13:27:48
Good kit I would get better clamps and more rubber tubing for the maf. Other than that it’s no differnt that an expensive one.
Matthew F.
2025-03-27 14:34:36
This kit fits well on my 2004 GMC Sierra. The finished product looks good and functions well. The kit arrives in a plain brown box and included no instructions. If you are mechanically inclined and understand how these kits work it should be an easy install. If you are a first timer and not super mechanical then this may not be a good kit for you. The increase in sound is noticeable under acceleration. Power increase and MPG are negligible unless you are installing other mods at the same time.
Michael
2025-03-21 15:02:18
Does not have a good fitmet for air boxMap sensor wouldn’t fit on worth a damThe most I was upset with not a spot threaded for the air charge temp sensor
Zeek
2025-03-11 13:51:10
Overall, this is a nice kit that is easier on the wallet than the more popular name brands. As other reviews have mentioned, NO instructions are included, but it wasn't too difficult to figure out how to assemble the pieces and replace the factory filter box along with the intake tube in my 2003 Tahoe.The filter itself is large and is a tight fit. The small rubber boot is a little loose on the MAF sensor before tightening the hose clamp. Upon opening the box, the stainless intake tube was a little scuffed, but could easily be cleaned and polished if you like shiny objects under your hood.I took my time and wasn’t in a rush, installation took maybe an hour to an hour and a half. While driving, the sound in the cabin is definitely noticeable under load, but was close to stock during normal cruising. I assume most people who get this will already have a louder exhaust and will be accustomed to increased engine noise.This is a worthy kit if you are considering a generic intake kit for your ‘99-06 GM truck or SUV. I consider this a quality kit in the under $70 range.Note: I had the opportunity to compare both Marsflex kits:APEN23001-M1APEN23001-M2During a side-by-side comparison, I found no differences between the two kits. Both included the same parts.
WholySmoke
2025-03-10 18:36:38
The holes on the divider walls and bracket arms on the pipe required some mild modification to bolt in properly, and it came with a section of Chinese newspaper rather than any form of instructions... but overall I am very happy with it for the price. There is a video on YouTube with someone showing the difference in power and flow on his HP tuners and it's a significant gain for the money.
NastyZ28
2024-12-22 10:49:14
works well for many ls swaps, 1st gen camaros, 80's c-10s, 65 chevelle, 70 c-10...
Only the motors are good
2024-12-12 14:12:47
Can’t fail this completely, it does work, sounds better than the stock unit, pipe came scratched like many others. Biggest thing is please include some sort of instructions!
many hits in the article
2024-11-19 16:07:31
It looks like a used product, it has many bumps and scratches
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