SKU: 44770458408

Muffler 40" Series 2.5" Offset In/2.5" Center Out Aggressive

Sale price$91.76 Regular price$101.95
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Description

Muffler 40" Series 2.5" Offset In/2.5" Center Out AggressiveOverview: 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. Features: Flowmaster quality Straight through design Moderate exterior performance tone Durable fully welded 409S stainless steel case Specs: Body Height: 4 Body Length: 13 Body Material:

Overview:

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.

Features:

  • Flowmaster quality
  • Straight through design
  • Moderate exterior performance tone
  • Durable fully welded 409S stainless steel case
  • Specs:

  • Body Height: 4
  • Body Length: 13
  • Body Material: Aluminized Steel
  • Body Width: 9.5
  • Brand: Flowmaster
  • Clamps Included: No
  • Color: Black
  • Emission Code: 5
  • Exhaust Tip Quantity: 0
  • Finish: High-Temperature Paint
  • Fitment: Universal
  • Grade Type: Performance
  • Hanger Included: No
  • Heat Shield Attached: No
  • Inlet Connection: Slip-Fit
  • Inlet Diameter: 2.5
  • Inlet Inside Diameter: 2.5
  • Inlet Location: Offset
  • Inlet Outside Diameter: 2.63
  • Inlet Quantity: 1
  • Inlet Type: Weld-On
  • Mount Type: Uses New Hangers (Not Included)
  • Muffler Series: Original 40 Series
  • Muffler Type: Chambered
  • Outlet Connection: Slip-Fit
  • Outlet Inside Diameter: 2.5
  • Outlet Location: Center
  • Outlet Outside Diameter: 2.63
  • Outlet Quantity: 1
  • Outlet Type: Single
  • Overall Length: 19
  • Reversible: No
  • Shape: Oval
  • Sound Level: Aggressive
  • Tunable: No
  • Universal Or Specific Fit: Universal
  • Part Number: 42541
  • Applications:

    • 1979-1988 Dodge D100 360 CID
    • 1979-1989 Dodge D100 318 CID
    • 1988-1989 Dodge D100 239 CID
    • 1979-1992 Dodge D150 318 CID
    • 1979-1991 Dodge D150 360 CID
    • 1988-1992 Dodge D150 239 CID
    • 1981-1992 Dodge D250 318 CID
    • 1981-1992 Dodge D250 360 CID
    • 1988-1992 Dodge D250 239 CID
    • 1979-1980 Dodge D300 360 CID
    • 1979-1980 Dodge D300 318 CID
    • 1981-1992 Dodge D350 360 CID
    • 1981-1983 Dodge D350 318 CID
    • 1986-1989 Dodge W100 318 CID
    • 1986-1988 Dodge W100 360 CID
    • 1989-1989 Dodge W100 239 CID
    • 1979-1992 Dodge W150 318 CID
    • 1979-1991 Dodge W150 360 CID
    • 1989-1992 Dodge W150 239 CID
    • 1981-1992 Dodge W250 318 CID
    • 1981-1992 Dodge W250 360 CID
    • 1981-1992 Dodge W350 360 CID
    • 1982-1983 Dodge W350 318 CID
    • 1990-1991 Dodge Dakota 318 CID
    • 1990-1991 Dodge Dakota 239 CID
    • 1979-1983 Jeep CJ5 258 CID
    • 1979-1981 Jeep CJ5 304 CID
    • 1979-1986 Jeep CJ7 258 CID
    • 1979-1981 Jeep CJ7 304 CID
    • 1965-1967 Plymouth Belvedere II 426 CID
    • 1965-1967 Plymouth Belvedere II 273 CID
    • 1965-1967 Plymouth Belvedere II 225 CID
    • 1965-1967 Plymouth Belvedere II 318 CID
    • 1965-1967 Plymouth Belvedere II 383 CID
    • 1966-1966 Plymouth Belvedere II 361 CID
    • 1967-1967 Plymouth Belvedere II 440 CID
    • 1974-1982 Chevrolet Corvette 350 CID
    • 1980-1980 Chevrolet Corvette 305 CID
    • 1983-1993 Chevrolet S10 173 CID
    • 1983-2002 Chevrolet S10 134 CID
    • 1983-1985 Chevrolet S10 119 CID
    • 1983-1984 Chevrolet S10 122 CID
    • 1985-1993 Chevrolet S10 151 CID
    • 1988-2002 Chevrolet S10 262 CID
    • 1994-1996 Ford F-250 445 CID
    • 1997-1998 Ford F-250 330 CID
    • 1994-1997 Ford F-350 445 CID
    • 2000-2006 Toyota Tundra 285 CID
    • 2005-2006 Toyota Tundra 241 CID

    Emissions:

    • This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 44770458408

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    4.3 ★★★★★
    Based on 25 reviews
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    Product Reviews
    S
    Verified Purchase
    Steve M.
    San Leandro, US
    ★★★★★ 5
    Works well. You need to drill a 3/8” hole
    Appears to be well made, alignment bar slides in nicely. As stated, you need to drill a hole in the bar for the gimble bearing driver, the directions are not clear, what I did was before I take out the old gimble bearing, put an O ring on the bar close to the last step on the bar, slide the bar all the way in, then carefully slide the bar out, this marks the distance from the back of the gimble bearing to where the shaft on the outdrive bottoms out, move the O ring a 1/4” towards the stepped part of the alignment tool (this is so you won’t bottom out the alignment tool when driving the gimble bearing in) then slide the driver puck up to the O ring and use a 3/8” diameter transfer punch through the side hole in the puck to mark the bar. You need to drill a 3/8” diameter hole in the alignment bar, two V blocks, some clamps, and a drill press will make drilling much easier, after the bar is securely mounted and centered in the drill press, use a center drill, then 1/4” drill first, using plenty of oil, drill all the way through, then use the 3/8” drill, deburr both sides and you should be good to go. People complain that it doesn’t come pre-drilled, the reason is that not all out drives are the same so you have to fit it to the outdrive that you have. Fortunately, I have a machine shop at my house and have a jig setup with various drill bushings, but the method I described above should work for you. Just make sure you’re perfectly centered and secure before you start drilling.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 16, 2026
    N
    Verified Purchase
    Nancy filippi
    West Palm Beach, US
    ★★★★★ 5
    A must pull your gimbal bearing
    You do need to drill a hole but worked perfect
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 26, 2025
    R
    Verified Purchase
    rich911s
    Boise, US
    ★★★★★ 5
    Worked for Volvo Penta SX Gimbal Bearing
    Very heavy tool, I was surprised. Pulled my bearing like it was nothing. Putting the new bearing in was a little more difficult as you have to drill a hole in the engine alignment shaft where it will work for your particular outdrive. Not hard, but it does not come pre-drilled as the required depth for each particular gimbal bearing differs by manufacturer and model. Measure your bearing placement before removal and check that it was installed correctly in the first place. The bearing should line up with the grease fitting and the o-rings on the drive shaft should end up riding in the middle of the bearing. once you have your measurement drill the hole, I used a drill press. I suppose you could use it on multiple outdrive models as long as you can drill more holes.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on June 5, 2023
    G
    Verified Purchase
    Greg
    Birmingham, US
    ★★★★★ 5
    Great value
    This kit worked perfectly on my Alpha one mercury outdrive. I saw a lot of people mention that it was a hassle to drill the hole when you better have all this alignment stuff. I threw it in use my regular drill drill guide and then the second hole was lined up. Pulling Gimble be very easy. I did have to adjust it up at an angle because my bearing was sitting in their crooked and it came out the second time I made the adjustment to the angle. I would highly recommend this.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 16, 2024
    T
    Verified Purchase
    Tommy Knapp
    Alexandria, US
    ★★★★★ 1
    Unfinished product - doesn't work - waste of money
    in order to use this as an installation tool the directions tell you to drill a hole through the 2 inch steel rod..... either this hole should already be drilled, or this should not be advertised as an installation tool..... it will not install any bearings without extensive modification and requires the use of a drill press or a lathe. very dissatisfied that I now have to buy ANOTHER tool just to finish this job because this one doesn't do what it's described to do.... piece of junk... typical amazon garbage.... this is why I haven't used amazon in over a year... they rip you off with garbage.... I should have known better .... don't buy this junk .... Now they say 20 -30 days to get my refund .... Don't waste your time
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 26, 2026

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