k&n cold air intake
Worth a lookShows a $5.1M/yr market, but weak search conversion (0.2%) keeps it on the watch list.
Market size
Incredible$5.1M$5.1M/yr · 29.5M searches
Competition
Great34%top-5 click share — an open shelf
Avg price
Good$102.30avg listing price — sweet spot $15–$100
Returns
Good2.4%return rate — above 6% kills the launch gate
Review moat
Good1,239.13avg incumbent reviews — the moat a new listing must climb
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Brand share
Good74%top-5 brand share — brands hold most of the demand
Price range
Bad$5.43–$409.55cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Bad-12.8%90-day search growth — must beat 0% to launch
Conversion
Bad0.2%search→purchase rate — share of searches ending in a sale
Competition
Clicks spread well past the top 5 (34% combined) — an open shelf where new products get seen.Brands
20 falling
Sellers
81
Top-5 brand share
74%
Open market
21%
- K&N38%
- DuoDiner14%
- intake11%
- MOOSUN6%
- OKAICEN5%
- Rough Country5%
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 54 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
DuoDiner Initial K Necklace for Men American Flag Letter K Pendent Chain Stainless Steel Dog Tag Country Military Necklace Jewelry Gifts (Silver)
DuoDiner$14.464.6★717 rev
K&N High-Flow Original Lifetime Universal Clamp-On Air Filter: High Performance Premium: Flange Diameter: 4 In Filter Height: 5.5 In Flange Length: 1.125 In Shape: Round Tapered RG-1001RD
K&N$35.244.6★5,136 rev
Intake Breathing Magnetic Nasal Strips Starter Kit | Reusable Band + Tabs | Nasal Strips for Sleep Snoring Breathing & Sports | Stronger Lift Than Traditional Nose Strips | 4 Sizes 15 Tabs Black
intake$39.623.9★5,313 rev
OKAICEN Fashion Alphabet Initial Letter Keychain Tassel Butterfly Pendant Key Ring for Purse Handbags Women Girl (K)
OKAICEN$7.994.7★3,571 rev
MOOSUN 4 inch Cold Air Intake Black Tube + Heat Shield for 1999-2006 GMC/Chevy V8 4.8L/5.3L/6.0L Silverado 1500/2500/3500 Black
MOOSUN$57.694.4★2,245 rev
Newest
by launch date
Universal Clamp-On Air Intake Filter High Flow Closed-Top Cool Air Filter Cleaner 76MM Performance Round Tapered Cone Air Filters Washable Replacement Filter for Car Truck (76MM/Silver&Blue)
LAINLOY$15.56449 rev
EVIL ENERGY Cold Air Intake Compatible for 2014-2018 Chevy Silverado 1500/GMC Sierra 1500 5.3L/6.2L Increases Horsepower Towing Performance & Acceleration Includes Heat Shield & Pre-Filter Black
EVIL ENERGY$131.9357 rev
EVIL ENERGY Cold Air Intake Compatible for 2009-2013 Chevy Silverado 1500 GMC Sierra 1500 Yukon Cadillac Escalade ESV EXT Increases Horsepower Towing Power Includes Heat Shield & Pre-Filter
EVIL ENERGY$148.4638 rev
EVIL ENERGY Cold Air Intake Compatible for 2011-2023 Chrysler 300/300C for 2011-2023 Dodge Challenger/Charger 3.6L No Cutting or Drilling Needed Includes Heat Shield & Pre-Filter Black
EVIL ENERGY$178.0134 rev
EVIL ENERGY Cold Air Intake Compatible for 2014-2018 Chevy Silverado 1500/GMC Sierra 1500 5.3L/6.2L No Cutting or Drilling Needed Includes Heat Shield & Pre-Filter Black
EVIL ENERGY$129.5327 rev
Trending
90-day click momentum
LUHOHI Letter Charm for Stanley CupPearl Chain Accessories Stanley Cup Initial Charms for Handle Stuff Decor Water Bottle Jewelry Tumbler Cute Simple Modern Personalized Name ID Decorations (K)
LUHOHI$6.764.5★
Universal Clamp-On Air Intake Filter High Flow Closed-Top Cool Air Filter Cleaner 76MM Performance Round Tapered Cone Air Filters Washable Replacement Filter for Car Truck (76MM/Silver&Blue)
LAINLOY$15.564.2★
OKAICEN Fashion Alphabet Initial Letter Keychain Tassel Butterfly Pendant Key Ring for Purse Handbags Women Girl (K)
OKAICEN$7.994.7★
DuoDiner Initial K Necklace for Men American Flag Letter K Pendent Chain Stainless Steel Dog Tag Country Military Necklace Jewelry Gifts (Silver)
DuoDiner$14.464.6★
STORUP Heart Initial Necklaces for Women Dainty Heart Letter K Pendant Necklace Jewelry for Women Mothers Day Birthday Gifts for Mom Wife Her
STORUP$26.514.6★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -12.8% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 2.1×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Clearly made with quality”
“Fit like a glove”
“Breath of fresh air”
“Good value”
“improved my sleep”
“Installation took 1 minute”
“effective”
“Helps with snoring”
“this product truly opens your sinuses”
“As advertised”
What buyers complain about
“Poor adhesion”
“Product is expensive”
“Did not work”
“Drop in quality”
“Does not fit”
“making it difficult to breathe”
“affected my sleep”
“irritated my skin”
“Difficult to use”
“Misleading description”