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MBRP AT-8511P Performance Slip-On Muffler For 2009-2016 Polaris Sportsman 850

Fitment Pro
(502)
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US $233.99
or Best Offer
as low as $40.60/mo with
Condition:
Used
“Open box item. Damaged in transit. Small nick on underside of muffler. Comes with items pictured. ”... Read moreabout condition
Compatibility:
Shipping:
Free Economy Shipping.
Located in: Hatfield, Pennsylvania, United States
Delivery:
Estimated between Fri, Oct 31 and Tue, Nov 4 to 94104
Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the shipping service selected, the seller's shipping history, and other factors. Delivery times may vary, especially during peak periods.
Returns:
Seller does not accept returns.
Payments:
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eBay item number:356751447271
Last updated on Oct 24, 2025 14:37:41 PDTView all revisionsView all revisions

Compatibility

This part is compatible with 164 vehicle(s)
YearMakeModelSubmodelNotes
2025PolarisSportsman 850--Please review vehicle compatibility chart on product listing prior to purchasing. Thanks!
2025PolarisSportsman 850Mud EditionPlease review vehicle compatibility chart on product listing prior to purchasing. Thanks!
2025PolarisSportsman 850PremiumPlease review vehicle compatibility chart on product listing prior to purchasing. Thanks!
2025PolarisSportsman 850TrailPlease review vehicle compatibility chart on product listing prior to purchasing. Thanks!
2024PolarisSportsman 850--Please review vehicle compatibility chart on product listing prior to purchasing. Thanks!
2024PolarisSportsman 850High Lifter EditionPlease review vehicle compatibility chart on product listing prior to purchasing. Thanks!
2024PolarisSportsman 850PremiumPlease review vehicle compatibility chart on product listing prior to purchasing. Thanks!
2024PolarisSportsman 850Ultimate Trail EditionPlease review vehicle compatibility chart on product listing prior to purchasing. Thanks!
2023PolarisSportsman 850--Please review vehicle compatibility chart on product listing prior to purchasing. Thanks!
2023PolarisSportsman 850High Lifter EditionPlease review vehicle compatibility chart on product listing prior to purchasing. Thanks!
2023PolarisSportsman 850PremiumPlease review vehicle compatibility chart on product listing prior to purchasing. Thanks!
2023PolarisSportsman 850TouringPlease review vehicle compatibility chart on product listing prior to purchasing. Thanks!
2023PolarisSportsman 850Ultimate Trail EditionPlease review vehicle compatibility chart on product listing prior to purchasing. Thanks!
2022PolarisSportsman 850--Please review vehicle compatibility chart on product listing prior to purchasing. Thanks!
2022PolarisSportsman 850High Lifter EditionPlease review vehicle compatibility chart on product listing prior to purchasing. Thanks!
2022PolarisSportsman 850PremiumPlease review vehicle compatibility chart on product listing prior to purchasing. Thanks!
2022PolarisSportsman 850TouringPlease review vehicle compatibility chart on product listing prior to purchasing. Thanks!
2022PolarisSportsman 850Ultimate Trail EditionPlease review vehicle compatibility chart on product listing prior to purchasing. Thanks!
2021PolarisSportsman 850--Please review vehicle compatibility chart on product listing prior to purchasing. Thanks!
2021PolarisSportsman 850High Lifter EditionPlease review vehicle compatibility chart on product listing prior to purchasing. Thanks!
Portions of the information contained in this table have been provided by fitmentpro

Item specifics

Condition
Used
An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections. See all condition definitionsopens in a new window or tab
Seller Notes
“Open box item. Damaged in transit. Small nick on underside of muffler. Comes with items pictured. ...
Shape
Round
Items Included
Muffler
Item Length
12.13
Placement on Vehicle
Rear
Labels & Certifications
CARB
Manufacturer Warranty
N/A
Inlet Diameter
2.35
Features
304 Stainless Steel, Slip-on system w/Performance Muffler
Finish
Powder Coated Black
Performance Part
Yes
Mounting Style
Clamp-On
Item Diameter (Exterior)
3.375
Color
Black
Item Diameter (Interior)
1.750"
Outlet Diameter
2.35
Manufacturer Part Number
AT 8511P, AT-8511P
Material
304 Stainless Steel
Superseded Part Number
N/A
Vintage Part
No
California Prop 65 Warning
WARNING: This product can expose you to chemicals, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Brand
MBRP Exhaust
Noise Level
Aggressive
Muffler Quantity
1
Type
Slip-on Exhaust System
Interchange Part Number
mbrpAT-8511P
OE/OEM Part Number
1262231-489
Country/Region of Manufacture
Canada
Universal Fitment
Yes
UPC
882963117939
Category

Item description from the seller

About this seller

Fitment Pro

98.8% positive feedback•1.4K items sold

Joined Jan 2024
Usually responds within 24 hours
Welcome to Fitment Pro — we’re two brothers who turned our passion for cars into a small business dedicated to helping fellow enthusiasts find the right parts at the best prices. With over a decade of ...
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Detailed seller ratings

Average for the last 12 months
Accurate description
4.8
Reasonable shipping cost
5.0
Shipping speed
5.0
Communication
4.9

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Seller feedback (528)

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  • r***k (821)- Feedback left by buyer.
    Past year
    Verified purchase
    This was sold as an open box return item, however, whoever they got the parts from had pulled a fast one on the seller and swapped them out. Unknowingly, the item was listed as a higher model coilover but actually was the basic style. Once I brought this matter to the seller, they quickly and professionally came up with a fair path of recourse that both parties agreed on. They didn't have to do this but it just shows the quality of company you are dealing with. Would do business with again!
    Reply from: fitmentpro- Feedback replied by seller fitmentpro.- Feedback replied by seller fitmentpro.
    Thank you so much! We greatly appreciate your honest feedback! We are doing everything we can to satisfy our customers and it is great to hear nice notes like this!
    Tein 16 Way Flex Z Coilovers Lowering Suspension Kit For Mazda RX-7 FD3S (#356641131898)
  • 7***1 (3386)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Ítem as described, quickly shipped. Listed as used, but item is definitely new. Seller worked with me to work out a great price on this quality clutch setup. Recommend this seller to all & hope to deal with again! AAA+++
    McLeod 75221 Super Street Pro Clutch Kit For 1955-85 Chevrolet 1-1/8 x 26 Spline (#357387360714)
  • a***s (251)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Item as described, smooth transaction,good price ,fast shipping,well packaged
    Skunk2 Racing Aluminum Intercooler For 2016-2021 Honda Civic 1.5 Turbo (#356752021729)
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Product ratings and reviews

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4.5
4 product ratings
  • 3 users rated this 5 out of 5 stars
  • 0 users rated this 4 out of 5 stars
  • 1 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

See all 4 reviews
  • by usjoshu-sidp2
    Jul 09, 2019

    sounds great but wasnt a direct fit.

    Its 3 starts because it was not a direct fit for my 2012 polaris sportsman touring 850. It fit when I welded a new hangar on it. And it sounded very good.

    Verified purchase: YesCondition: NewSold by: motorheadzone

  • by geiger084386
    Mar 02, 2021

    Throaty sounding

    This is just personal preference but it is a bit louder than I wanted. I was warned that an after market muffler would be louder. I'm sure all the youngsters that hear it will be envious of this 65 yr. old grandma.

    Verified purchase: YesCondition: NewSold by: bikenowmotorsport

  • by dmoran560
    Mar 03, 2020

    Good buy

    Good product sounds great.

    Verified purchase: YesCondition: NewSold by: aristocrat_autosport

  • by phho09
    Oct 05, 2021

    good

    good

    Verified purchase: YesCondition: NewSold by: oemcycles

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