Back to home page
|Listed in category:
Check the item description to confirm this fits your vehicle

Picture 1 of 4

Last item available
Picture 1 of 4
Picture 2 of 4
Picture 3 of 4
Picture 4 of 4
Have one to sell?
Sell it yourself

-OPEN BOX-Flowmaster 8425454 Super 44 Series Muffler 2.5" Dual In/Outlet 19in Lg

KarlKustoms
(20095)
Seller's other items
Contact seller
US $115.00
ApproximatelyC $159.48
Condition:
New other (see details)
“New, never used, may not ship in original box”
Last one4 sold
People are checking this out. 2 have added this to their watchlist.
Popular item. 4 have already sold.
Shipping:
Free Standard Shipping.
Located in: Des Moines, Iowa, United States
Delivery:
Estimated between Fri, Aug 22 and Tue, Aug 26 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:
30 days return. Seller pays for return shipping.
Payments:
     Diners Club

Shop with confidence

eBay Money Back Guarantee
Get the item you ordered or your money back. Learn moreeBay Money Back Guarantee - opens new window or tab
Seller assumes all responsibility for this listing.
eBay item number:395607812879
Last updated on Aug 20, 2025 12:54:58 EDTView all revisionsView all revisions

Item specifics

Condition
New other (see details)
A new, unused item with absolutely no signs of wear. The item may be missing the original packaging, or in the original packaging but not sealed. The item may be a factory second, or a new, unused item with defects. 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
“New, never used, may not ship in original box”
Brand
Flowmaster
Type
Muffler
Placement on Vehicle
Exhaust
Features
Dual Exit
Color
Black
Material
Steel
Inlet Diameter
2.5in.
Outlet Diameter
2.5in.
Manufacturer Part Number
8425454
OE/OEM Part Number
N/A
Inlet Type
Dual
Outlet Type
Dual
Finish
Painted
Performance Part
Yes
Vintage Part
No
Manufacturer Warranty
Lifetime
Warranty
Lifetime
Surface Finish
Painted
Fitment Type
Performance/Custom
Vintage Car Part
No
UPC
700042032020

Item description from the seller

About this seller

KarlKustoms

99.6% positive feedback•72K items sold

Joined Aug 2018
Usually responds within 24 hours
Karl Kustoms strives to provide the highest level of customer satisfaction. Our central location in Des Moines, Iowa offers top quality products at affordable prices to all automotive enthusiasts in ...
See more
Visit storeContact

Detailed seller ratings

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

Popular categories from this store

See allcategories
Air Filters & Cold Air IntakesARP Products & FastenersAuto MeterB&M RacingBatteries & AccessoriesBody ComponentsBrakesBreathers & Catch CansCar Care & Detailing Products

Seller feedback (21,014)

All ratings
Positive
Neutral
Negative
    • l***b (180)- Feedback left by buyer.
      Past 6 months
      Verified purchase
      Awesome love the sound recommendation is very high super fast shipping
    See all feedback

    Product ratings and reviews

    Learn more
    4.8
    17 product ratings
    • 15 users rated this 5 out of 5 stars
    • 1 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 15 reviews
    • by john77lt
      Nov 01, 2018Top favourable review

      Super 44 rumble

      Bought this for my son's 96 c1500 5.7l with stock exhaust up to mufflers. I had a 70 series big block flowmaster on there before. He wanted it to be louder and it definitely is louder. It has more interior resonance than the 70 series. It is louder outside the truck too, but not as much of the old school flowmaster 40 series sound as I would like. It definitely has more of a rumble sound to it than the 40 series mufflers. We had this installed with 45 degree turn downs that terminate just before the axle. My son loves it, though. He's young, so the louder the better, lol. Overall very satisfied with this muffler, was just expecting a slightly different sound outside. I would say that if you like an aggressive rumble with some flow master sound then this is the one for you. If you like ...

      Verified purchase: YesCondition: NewSold by: 21-motorsports

    • by ship_33
      Nov 04, 2021

      Super 44 meow delete 5.8 351w

      Got it put on my 93 f-150. The truck has a 5.8 351 Windsor with stock manifolds running 2 1/2 inch from each down pipe into each inlet and running it out the back with some 3 1/4 inch rolled tips. It gives the truck a good rumble but not super obnoxious. You can still listen to the radio at a comfortable volume and will drone up hills with the cruise on but is pretty quiet cruising.

      Verified purchase: YesCondition: NewSold by: trendsauto

    • by jetairliner707aries
      Dec 23, 2018

      flow master

      ive always liked flow masters.if you want a good quality tone but not to loud deffinatly the way to go.this is a good sounding muffler in 2 out 2 but not as deep and aggressive as the 44 that's single in single out.

      Verified purchase: YesCondition: NewSold by: ecustomhitch

    • by silvu-68
      Oct 06, 2024

      Great quality and sounds amazing. Keep ...

      Great quality and sounds amazing. Keep up the good work. Thank you

      Verified purchase: YesCondition: NewSold by: holleyperformance

    • by big-black1214
      Aug 25, 2020

      Nice

      Sounds awesome when I hit the gas. Quiet at the light.. Very good muffler..

      Verified purchase: YesCondition: NewSold by: performance-curve

    More to explore: