5 inch muffler
Skip itA small market ($77K/yr) — this niche doesn't clear our bar today.
Review moat
Great109.8avg incumbent reviews — the moat a new listing must climb
Avg price
Great$80.99avg listing price — sweet spot $15–$100
Conversion
Good5.0%search→purchase rate — share of searches ending in a sale
Competition
Good51%top-5 click share — leaders hold, buyers still browse
Brand share
Okay75%top-5 brand share — brands hold most of the demand
Returns
Okay3.7%return rate — above 5% kills the launch gate
Price range
Okay$60.75–$182.50cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Growth
Bad-2.6%90-day search growth — must beat 0% to launch
Market size
Bad$77K$77K/yr · 19K searches
According to Flapen's Amazon United States niche tracking, 5 inch muffler is a $77K/yr Amazon United States market (19K searches/yr). The top 5 brands hold 75% of demand. Verdict: Skip it — 43/100.
Data updated Jul 9, 2026 · scored weekly · How we score niches
5 inch muffler market data
- Units sold / yr
- 750–1K
- avg 0–100/product
- Revenue / yr
- $61K–$81K
- units × avg price
- Conversion rate
- 5.0%
- Avg BSR
- #251
- Page quality
- 0%
- Prime
- 95%
- Sponsored
- 95%
- Out of stock
- 0.0%
- Avg brand age
- 73 months
- Avg seller age
- 178 days
Competition & brand share
The top 5 products take 51% of clicks — established leaders, but buyers still shop beyond them.Brands
10 falling
Sellers
45
Top-5 brand share
75%
Top 20: 100%
Top-5 click share
51%
Top 20: 100%
Open market
17%
- LCGP21%
- JY PERFORMANCE19%
- TECTRUC12%
- Walker12%
- A-KARCK11%
- Floshine8%
- Open — no brand owns it (4 brands, 17%)
Demand
Weekly Amazon search volume, last 36 weeks — -2.6% search growth over the last 90 days.Top 5 inch muffler search terms
- 5 inch muffler7K/yr
- 5 inch diesel muffler4K/yr
- 5 muffler4K/yr
- 5 diesel muffler4K/yr
Top 5 inch muffler products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 20 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
JY Performance 5 inch Muffler Diesel Muffler 8 x 24 Body 30 Whole Length Straight Through Stainless Steel Welded On Resonator Muffler with Clamp
JY PERFORMANCE$78.614.5★274 rev
LCGP 5 Inlet Diesel Exhaust Muffler 5 Inlet & Outlet 7 x 24 Body 30 Whole Length Universal Resonator Straight Through Design Stainless Steel Mufflers Resonator
LCGP$67.594.4★81 rev
5 Inlet Diesel Exhaust Muffler 5 Inch Inlet/Outlet Muffler Performance 5inch Resonator Straight Through Stainless Steel 30 Whole Length Welded On Exhaust Tip
TECTRUC$64.654.5★448 rev
LCGP 5 Inlet Diesel Exhaust Muffler 5 Inlet & Outlet 5 x 10.5 Body 17.3 Whole Length Universal Resonator Straight Through Design Stainless Steel Mufflers Resonator
LCGP$60.754.4★81 rev
Floshine 5 Exhaust Muffler 5 inlet/outlet Universal 30 Overall Stainless Steel Straight Through Design Resonator Muffler
Floshine$70.734.8★89 rev
Newest
by launch date
A-KARCK 5 Inlet&Outlet Diesel Exhaust Muffler 8 x 24 Body 30 Overall Length Stainless Steel Resonator Muffler with Clamp Straight Through DesignPolished
A-KARCK$79.1710 rev
LCGP 5 Inlet Diesel Exhaust Muffler 5 Inlet & Outlet 5 x 10.5 Body 17.3 Whole Length Universal Resonator Straight Through Design Stainless Steel Mufflers Resonator
LCGP$60.7581 rev
Piclafe 5 Inch Exhaust Muffler with Clamp 5 Inlet/Outlet 30 Overall Length Resonator Stainless Steel Straight Through Design Performance Muffler with Clamp 1 PC
Piclafe$76.4210 rev
LCGP 5 Inlet Diesel Exhaust Muffler with Clamp 5 Inlet & Outlet 7 x 24 Body 30 Whole Length Universal Resonator Straight Through Design Stainless Steel Mufflers Resonator
LCGP$74.2919 rev
A-KARCK 5 Inlet&Outlet Diesel Exhaust Muffler 8 x 24 Body 30 Overall Length Stainless Steel Resonator Muffler with Clamp Straight Through Design
A-KARCK$73.5112 rev
Trending
90-day click momentumA-KARCK 5 Inlet&Outlet Diesel Exhaust Muffler 8 x 24 Body 30 Overall Length Stainless Steel Resonator Muffler with Clamp Straight Through DesignPolished
A-KARCK$79.174.6★
LCGP 5 Inlet Diesel Exhaust Muffler 5 Inlet & Outlet 5 x 10.5 Body 17.3 Whole Length Universal Resonator Straight Through Design Stainless Steel Mufflers Resonator
LCGP$60.754.4★
LCGP 5 Inlet Diesel Exhaust Muffler with Clamp 5 Inlet & Outlet 7 x 24 Body 30 Whole Length Universal Resonator Straight Through Design Stainless Steel Mufflers Resonator
LCGP$74.294.9★
A-KARCK 5 Inlet&Outlet Diesel Exhaust Muffler 8 x 24 Body 30 Overall Length Stainless Steel Resonator Muffler with Clamp Straight Through Design
A-KARCK$73.514.8★
Piclafe 5 Inch Exhaust Muffler with Clamp 5 Inlet/Outlet 30 Overall Length Resonator Stainless Steel Straight Through Design Performance Muffler with Clamp 1 PC
Piclafe$76.424.8★
What buyers say about 5 inch muffler
What buyers praise and complain about, mined from review topics.What buyers love
“Great value compared to others”
“This straight through muffler works great, makes the exhaust sound more deep and aggressive”
“seems well made”
“Perfect Fit”
“As expected”
“Well built good sound”
“has good construction”
“This thing mounted right up to my FloPro 5”
“Works great”
“Its very heavy so I neighbor neighbors”
What buyers complain about
“since then my truck was obnoxiously loud so I got tired of the noise”
“horrible for performance”
“super light weight didnt reduce sound very much”
“however it's not the greatest quality material”
“Dramatically reduces power”
Top return reasons
Common questions
- Is 5 inch muffler profitable to sell on Amazon United States?
- The niche generates $77K/yr across 20 tracked products. 2 of 5 products launched in the last 360 days are still selling. 90-day search growth is -2.6%. Flapen's verdict: Skip it (43/100).
- How competitive is the 5 inch muffler niche?
- 10 brands and 45 sellers compete. The top 5 products take 51% of clicks and top 5 brands hold 75% of demand.
- What do buyers complain about in 5 inch muffler?
- Top complaints mined from reviews: Noise Level, Quality-Overall, Audio Quality. The return rate is 3.7%.
- What does it cost to enter the 5 inch muffler niche?
- Listings span $60.75–$182.50; the average listing price is $80.99 (sweet spot $15–$100). The average incumbent carries 110 reviews — the moat a new listing must climb.