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Flowmaster Inc. 40 Series Muffler - 2.50 Offset In - 2.50 Offset Out - Aggressive Sound

(12 reviews)
Part # 42543
3 yr replacement if defective
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Product Information

Product Details
Part No. 42543
Warranty Details (3 YR REPLACEMENT IF DEFECTIVE)
The Original 40 series muffler delivers an aggressive exterior and interior tone. If you're looking for that original Flowmaster sound this is the muffler is for you. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.

Product Features:
    Specifications
    Body Height:
    4.00 in

    Body Length:
    13.00 in

    Body Material:
    Aluminized Steel

    Body Width:
    9.50 in

    Brand:
    Flowmaster

    Category:
    Exhaust

    Clamps Included:
    No

    Color:
    Black

    Fitment:
    Universal

    Grade Type:
    Performance

    Hanger Included:
    No

    Heat Shield Attached:
    No

    Inlet Connection:
    Slip-Fit

    Inlet Inside Diameter:
    2.50 in

    Inlet Location:
    Offset

    Inlet Outside Diameter:
    2.63 in

    Inlet Quantity:
    1

    Inlet Type:
    Weld-On

    Muffler Type:
    Chambered

    Outlet Connection:
    Slip-Fit

    Outlet Inside Diameter:
    2.50 in

    Outlet Location:
    Offset

    Outlet Outside Diameter:
    2.63 in

    Outlet Quantity:
    1

    Outlet Type:
    Single

    Product Type:
    Street Mufflers

    Reversible:
    No

    Shape:
    Oval

    Sub Category:
    Mufflers

    Tunable:
    No

    Universal Or Specific Fit:
    Universal

    Vehicle Type:
    Classic Muscle Car
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    4 out of 5
    12 Customer Reviews
    50% of respondents would recommend this to a friend
    Ratings Distribution
    5 Stars
    8
    4 Stars
    1
    3 Stars
    0
    2 Stars
    1
    1 Star
    2
    Pros
    1
    Adds Style
    1
    Easy To Install
    1
    Great Sound
    1
    Easy To Use
    Cons
    10
    No
    1
    (null)
    Most Liked Positive Review
    sounds nice!
    It was time to replace the stock muffler on my 02 Dakota so I took the opportunity to upgrade to this muffler. It was easy to install and I am very pleased with the sound, its aggressive, but not obnoxiously loud! Love it. The overall length is much shorter than the stock muffler so take that into account when you install yours. You will need about 12" of extra tubing.
    Most Liked Negative Review
    No Good
    Do not like, still too loud.
    Reviewed by 12 Customers
    No Good
    Verified Buyer -
    Do not like, still too loud.
    Great location
    Verified Buyer -
    Great location with always friendly and helpful staff.
    sounds nice!
    Verified Buyer -
    It was time to replace the stock muffler on my 02 Dakota so I took the opportunity to upgrade to this muffler. It was easy to install and I am very pleased with the sound, its aggressive, but not obnoxiously loud! Love it. The overall length is much shorter than the stock muffler so take that into account when you install yours. You will need about 12" of extra tubing.
    Bottom Line Yes, I would recommend to a friend
    No
    Verified Buyer -
    Description states exact fit replacement. Not even close. It was about 10 inches short, not a problem as I have a welder and made a extension. Also a bit louder than I would have liked but it got the job done.
    Not the sound I was looking for
    I put the 40 series flowmaster on a 02 sports trac. The muffler sounds ok but wasn't as loud as I wanted it. I wanted a louder exhaust. But if u want just a good rumble its an ok exhaust to get.
    Displaying Reviews 1 - 5Back to Top
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