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Direct Replacement Slip-on w/Utility Muffler Yamaha YFM 350-4FH Big Bear Hunting 4x4 1999 & 350FW Big Bear Moto-4 4x4 1987-1997 & 350FWB Big Bear 1997-1999 & 350U Big Bear 2x4 1996-1999 & 400FW Kodiak 1993-1999

MBRP: AT-7403
SKU:
AT-7403
$273.67
$259.99

    IN ACTION

    UTILITY Series ATV Exhaust

    Designed to be a replacement muffler with similar sound levels to stock, but with higher flow. Higher flow means more power. If you want even higher flow and more aggressive sound, take a look at the Sport Series or Performance Series mufflers from MBRP.

    • Slight db increase over stock
    • 1.25" Inlet, 3.5" Diameter Body
    • Chambered Muffler
    • Improved flow
    • No tuning needed
    • No tuning needed
    ATV Exhaust Series:
    Utility
    Vehicle Type:
    ATV
    Prop 65:
    WARNING: P65Warnings.ca.gov
    Product Type:
    Exhaust System Kit
    UPC:
    882963109651

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    MBRP Warranty and Terms

    Installer Series: Three (3) Years warranty on Aluminized Steel
    XP Series: Lifetime warranty on 409 Stainless Steel
    PLM Series: Limited One (1) Year warranty
    Pro Series: Lifetime warranty on 304 Stainless Steel
    Black Series: One (1) Year warranty on the coating and a three (3) Years Warranty on the exhaust components
    Performance Series: 1 Year warranty on Aluminized Steel

    Powersports

    Sports Series: 1 Year Warranty
    Performance Series: 1 Year Warranty
    Trail Series: 2 Year Warranty
    Race Series: 2 Year Warranty

    Warranty Information:

    The MBRP Inc. warranty applies only to defects in material & workmanship of MBRP Inc. products to the original purchaser on record, providing that installation was completed on the original vehicle for which it was designed and tested for. MBRP Inc. will not warranty the cost of removal or re-installation of this product nor does the warranty apply if the product has been damaged by accident, abuse, misuse or misapplication. The sole obligation of MBRP Inc. will be to repair or replace at its discretion.

    Group
    Make
    Year
    Model
    DIRT
    Yamaha
    1987 - 1999
    YFM350FW Big Bear 4x4
    DIRT
    Yamaha
    1993 - 1999
    YFM400F Kodiak 4x4
    Customer Reviews
    5.0 Based on 6 Reviews
    5 ★
    100% 
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    Customer Photos
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    • factory exhaust purr
    • buck item
    • muffler
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    • package
    • Replacement
    • stock
    KR
    05/24/2023
    Kevin R.
    United States
    CS
    01/11/2022
    Charlie S.
    United States

    Installed on my 92 Big Bear 350

    Fit really well and sounds really good. It’s louder than stock but not as loud as like an hmf. It’s a perfect in between muffler. I would highly recommend it!

    RM
    06/18/2021
    Randall M.
    United States

    New Exhaust needed

    Install was easy and all parts needed were included in The package ! This is a great bang for your buck item !

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