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2017 honda civic air filter

Worth a look

Shows searches that convert (11.9% search→purchase), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 28Growth 53Conversion 95Competition 71Returns 84Price range 84Avg price 84Brand share 66Review moat 39Quality gap 19

Conversion

Great11.9%

search→purchase rate — share of searches ending in a sale

Returns

Great1.5%

return rate — above 6% kills the launch gate

Avg price

Great$18.74

avg listing price — sweet spot $15–$100

Price range

Great$8.02–$57.09

cheapest to priciest tracked listing — scored on the share inside $15–$100

Competition

Good42%

top-5 click share — leaders hold, buyers still browse

Brand share

Good65%

top-5 brand share — brands hold most of the demand

Growth

Good+25.1%

90-day search growth — must beat 0% to launch

Review moat

Okay2,648.28

avg incumbent reviews — the moat a new listing must climb

Market size

Okay$123K

$123K/yr · 55K searches

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Competition

The top 5 products take 42% of clicks — established leaders, but buyers still shop beyond them.

Brands

18 rising

Sellers

50

Top-5 brand share

65%

Open market

29%

  • EPAuto20%
  • RVgolf16%
  • Carory11%
  • K&N10%
  • kurimup9%
  • ECOGARD5%

Product shelf

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%4%$5K8%$10K12%$15K16%$20K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 32 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +25.1% search growth over the last 90 days.
2K1KSpike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: May · busiest ÷ quietest = 1.6×

Reviews

What buyers praise and complain about, mined from review topics.

What buyers love

Size-Overall35%

“Fit like a glove”

Quality-Overall17%

“The quality seems solid”

Value For Money11%

“Excellent Value”

Filtration11%

“Excellent air filter”

Assembly/Installation8%

“no issues installing it”

Advertised Vs Actual Product6%

“As advertised”

Ease Of Use3%

“User friendly”

Efficiency2%

“It works great”

Smell1%

“Great smell”

Strength1%

“Both filters feel sturdy”

What buyers complain about

Compatibility-Overall29%

“Doesn't fit my car”

Size-Overall23%

“DOES NOT FIT”

Filtration8%

“Filter seems too restrictive”

Smell4%

“Weird smell”

Advertised Vs Actual Product4%

“Did not fit exactly as described”

Product Condition3%

“Bought used”

Quality-Overall2%

“Not best quality”

Shape/Style2%

“It has a completely different shape”

Maintenance And Repair2%

“Granted, most maintenance at dealerships is a ripoff BUT it takes all of five minutes if you don't know what you are doing, most of which is watching the youtube video telling you how to do it, and maybe a minute or two if you do know what you are doing”

Value For Money1%

“the great thing is although theyre a little bit more expensive than your standard filters they do last longer”

Top return reasons

Size-Overall55%
Compatibility-Overall24%
Filtration10%
Advertised Vs Actual Product2%
Shape/Style2%
Value For Money2%
Defective Material/Parts1%
Product Condition1%
Quality-Overall1%
Assembly/Installation0%