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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

  • Based on 42 reviews
Condition: New
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Availability: Only 10 left in stock, order soon!
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Arrives Wednesday, Mar 12
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Features

  • 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
  • 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

Brand: Marsflex


Product Dimensions: 17"L x 13"W x 7.5"H


OEM Part Number: APEN23001-M1


Shape: Conical


Manufacturer: Marsmotor


Manufacturer: ‎Marsmotor


Brand: ‎Marsflex


Model: ‎APEN23001-M1


Item Weight: ‎9 pounds


Product Dimensions: ‎17 x 13 x 7.5 inches


Country of Origin: ‎China


Item model number: ‎APEN23001-M1


Manufacturer Part Number: ‎APEN23001-M1


OEM Part Number: ‎APEN23001-M1


Date First Available: November 1, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Mar 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Clamps
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.
Reviewed in the United States on May 8, 2024 by Robert Bandy

  • The Filter Is Long
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. ... show more
Reviewed in the United States on June 12, 2024 by Jason C Jason C

  • Does the job
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. ... show more
Reviewed in the United States on September 11, 2024 by Matthew F.

  • Worthy of consideration if you are looking for a generic intake kit
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-M1 APEN23001-M2 During a side-by-side comparison, I found no differences between the two kits. Both included the same parts. ... show more
Reviewed in the United States on February 18, 2024 by Zeek Zeek

  • 0 if I could
Did not fit my 2001 Suburban. Air filter was too long and no combination of rubber sleeves would make it work. If I could shorten it up enough to make the filter fit then no brackets lined up.
Reviewed in the United States on September 19, 2024 by Dk

  • Throttle response is a lot quicker now.
So I have a 2011 GMC Sierra 1500. This kit is for... not a 2011 GMC Sierra. I took a photo before I started the install and I took one when I was done. I know this is not "supposed" to fit my truck, but honestly it did. I had to incorporate the MAF sensor and PCV but that was easy. The rest fit just like it was supposed to. All the parts listed were in the kit and everything fit perfectly. Some of the pieces were a tight fit but they are supposed to be tight. Also this kit does not come with directions but you can look them up. It was a easy install. All I needed was a 10mm and a phillips screwdriver. It took about a hour including the MAF and PCV incorporation. When I took it for a test drive I did notice a little bit more power and there was a definite difference in the sound, not at idle but when you put your foot in the gas. My truck has the stock exhaust and it sounded like I had a louder exhaust than normal. I really like how it sounds now. The throttle response is a lot faster now. It normally hesitates for a brief moment but that time seems like it has been cut in half. All in all I would buy this again and I recommend this to anyone who wants to put a cold air kit in their truck. ... show more
Reviewed in the United States on January 29, 2024 by Christopher M. Smith Sr. Christopher M. Smith Sr.

  • Easy install no instructions
It bolted right up but I've had a intermittent maf sensor code sense install. Other than rhat it looks good and works good. There's no Instructions in the box tho so it takes some laying out and patience but once you start going it all falls into place.
Reviewed in the United States on August 5, 2024 by Corie cockerham

  • Cold Air Intake
Kit is well made but instructions were missing. I did experience difficult installing on my 2002 Silverado. I feel the installation process could have been less of a challenge with installation for my Truck.
Reviewed in the United States on May 31, 2024 by Shirley Taylor Jr

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