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Flowmaster 425404 40 Series Muffler 2.5" Dual Inlet/Dual Outlet Aggressive Sound - Picture 1 of 3
Flowmaster 425404 40 Series Muffler 2.5" Dual Inlet/Dual Outlet Aggressive Sound - Picture 2 of 3
Flowmaster 425404 40 Series Muffler 2.5" Dual Inlet/Dual Outlet Aggressive Sound - Picture 3 of 3

Exhaust Muffler Flowmaster 425404

4.9432 product ratings
KarlKustoms (20018)
99.6% positive feedback
Price:
US $109.95
ApproximatelyAU $168.82
+ $49.21 postage
Estimated delivery Wed, 27 Aug - Fri, 5 Sep
Returns:
30-day returns. Buyer pays for return postage. If you use an eBay postage label, it will be deducted from your refund amount.
Condition:
Brand New
2.50 IN(D)/OUT(D) 40 SERIES.

About this product

Product Identifiers

BrandFlowmaster
Manufacturer Part Number425404
eBay Product ID (ePID)236354147

Additional Product Features

NotesDescription--Exhaust Muffler
Sub TypeExhaust Muffler
Part TypeMufflers

All listings for this product

Buy It Now
New
Flowmaster 425404 40 Series Muffler 2.5" Dual Inlet/Dual Outlet Aggressive Sound
Last one
item 1 Flowmaster 425404 40 Series Muffler 2.5" Dual Inlet/Dual Outlet Aggressive Sound
AU $168.81
+AU $75.56 postage
Flowmaster 425404 Exhaust Muffler
item 2 Flowmaster 425404 Exhaust Muffler
AU $168.81
+AU $75.56 postage
Flowmaster 425404 Exhaust Muffler FLO425404
item 3 Flowmaster 425404 Exhaust Muffler FLO425404
AU $168.81
+AU $75.56 postage
Flowmaster 425404 2.5" Dual In/Out 40 Series Aggressive Sound Chambered Muffler
item 4 Flowmaster 425404 2.5" Dual In/Out 40 Series Aggressive Sound Chambered Muffler
AU $174.50
+AU $75.75 postage
Flowmaster 425404 40 Series Muffler
item 5 Flowmaster 425404 40 Series Muffler
AU $168.81
+AU $100.04 postage
Flowmaster Original 40 Series Muffler 2.5" Dual / Dual - 425404
item 6 Flowmaster Original 40 Series Muffler 2.5" Dual / Dual - 425404
AU $168.81
+AU $105.83 postage
Flowmaster 425404 40 Series Muffler
item 7 Flowmaster 425404 40 Series Muffler
AU $168.81
+AU $106.57 postage
NEW FLOWMASTER 40 SERIES CHAMBERED MUFFLER,BLACK,2.5" DUAL IN,2.5" DUAL OUT
item 8 NEW FLOWMASTER 40 SERIES CHAMBERED MUFFLER,BLACK,2.5" DUAL IN,2.5" DUAL OUT
AU $168.81
+AU $107.77 postage
Flowmaster 40 Series Chambered Muffler 2.5" IN (Dual) / OUT(Dual) 425404
item 9 Flowmaster 40 Series Chambered Muffler 2.5" IN (Dual) / OUT(Dual) 425404
AU $168.81
+AU $107.77 postage
Exhaust Muffler Flowmaster 425404
item 10 Exhaust Muffler Flowmaster 425404
AU $168.81
+AU $108.83 postage
Flowmaster 425404 40 Series Muffler 2.50" IN(D)/OUT(D) Aggressive Sound
item 11 Flowmaster 425404 40 Series Muffler 2.50" IN(D)/OUT(D) Aggressive Sound
AU $168.81
+AU $108.83 postage
Flowmaster 425404 40 Series Muffler 2.5" Dual Inlet 2.5" Dual Outlet
item 12 Flowmaster 425404 40 Series Muffler 2.5" Dual Inlet 2.5" Dual Outlet
AU $168.81
+AU $108.83 postage
Flowmaster 425404 40 Series Chambered Muffler 2.50 Dual In / 2.5 Dual Out
item 13 Flowmaster 425404 40 Series Chambered Muffler 2.50 Dual In / 2.5 Dual Out
AU $187.22
+AU $97.27 postage
Flowmaster 425404 40 Series Muffler
item 14 Flowmaster 425404 40 Series Muffler
AU $208.65
+AU $76.86 postage
Flowmaster Original 40 Series Exhaust Muffler 2.5" Inlet Outlet Dual Black Steel
Almost gone
item 15 Flowmaster Original 40 Series Exhaust Muffler 2.5" Inlet Outlet Dual Black Steel
AU $177.25
+AU $109.10 postage
Flowmaster 425404 - Original 40 Series Muffler 2.5" Dual/Dual
item 16 Flowmaster 425404 - Original 40 Series Muffler 2.5" Dual/Dual
AU $176.83
+AU $110.03 postage
425404 Flowmaster Muffler Oval
item 17 425404 Flowmaster Muffler Oval
AU $188.28
+AU $106.47 postage
Flowmaster 425404 - Original 40 Series Muffler 2.5" Dual/Dual
item 18 Flowmaster 425404 - Original 40 Series Muffler 2.5" Dual/Dual
AU $186.49
+AU $109.41 postage
Exhaust Muffler Flowmaster 425404
item 19 Exhaust Muffler Flowmaster 425404
AU $187.98
+AU $109.46 postage
Flowmaster 40 Series Performance Muffler 425404
item 20 Flowmaster 40 Series Performance Muffler 425404
AU $188.27
+AU $109.46 postage
425404 Flowmaster 40 Series Chambered Muffler
item 21 425404 Flowmaster 40 Series Chambered Muffler
AU $168.81
+AU $129.02 postage
Flowmaster 425404 40 Series Chambered Muffler
item 22 Flowmaster 425404 40 Series Chambered Muffler
AU $168.81
+AU $129.02 postage
425404 Flowmaster 40 Series Chambered Muffler
item 23 425404 Flowmaster 40 Series Chambered Muffler
AU $168.81
+AU $129.02 postage
Flowmaster 425404 40 Series Chambered Muffler
item 24 Flowmaster 425404 40 Series Chambered Muffler
AU $168.81
+AU $129.02 postage
Flowmaster 425404 Original 40 Series Muffler 2.5" Dual Inlet/2.5" Dual Outlet
item 25 Flowmaster 425404 Original 40 Series Muffler 2.5" Dual Inlet/2.5" Dual Outlet
AU $190.83
+AU $108.48 postage
Flowmaster 40 Series Performance Muffler - 2.5" Dual Inlet/Outlet, Steel
item 26 Flowmaster 40 Series Performance Muffler - 2.5" Dual Inlet/Outlet, Steel
AU $190.60
+AU $109.54 postage
Flowmaster 425404 40 Series Muffler
item 27 Flowmaster 425404 40 Series Muffler
AU $193.69
+AU $109.65 postage
Flowmaster 425404 40 Series Muffler, 2.50 IN(D)/OUT(D)
item 28 Flowmaster 425404 40 Series Muffler, 2.50 IN(D)/OUT(D)
AU $168.81
+AU $135.84 postage
Flowmaster 425404 40 Series Muffler
item 29 Flowmaster 425404 40 Series Muffler
AU $195.92
+AU $117.43 postage
Flowmaster 425404 40 Series™ fler for MUF
item 30 Flowmaster 425404 40 Series™ fler for MUF
AU $208.89
+AU $110.14 postage
FLOWMASTER 40 SERIES- 425404
item 31 FLOWMASTER 40 SERIES- 425404
AU $209.87
+AU $110.17 postage
Flowmaster 40 Series Chambered Muffler 2.5" IN (Dual) / OUT(Dual) 425404
item 32 Flowmaster 40 Series Chambered Muffler 2.5" IN (Dual) / OUT(Dual) 425404
AU $168.81
+AU $151.83 postage
Flowmaster 40 Series 2.5" Dual/Dual Muffler Aluminized 425404
item 33 Flowmaster 40 Series 2.5" Dual/Dual Muffler Aluminized 425404
AU $168.81
+AU $153.73 postage
Exhaust Muffler Flowmaster 425404
item 34 Exhaust Muffler Flowmaster 425404
AU $214.48
+AU $110.32 postage
Flowmaster 40 Series Chambered 2.5” Muffler D/D 9.5” Body 4” x 13” Unv. Exhaust
item 35 Flowmaster 40 Series Chambered 2.5” Muffler D/D 9.5” Body 4” x 13” Unv. Exhaust
AU $168.81
+AU $156.19 postage
Flowmaster 425404 40 Series Muffler
item 36 Flowmaster 425404 40 Series Muffler
AU $222.75
+AU $107.58 postage
Exhaust Muffler Flowmaster 425404
item 37 Exhaust Muffler Flowmaster 425404
AU $224.24
+AU $110.64 postage
Flowmaster 425404 40 Series Muffler
item 38 Flowmaster 425404 40 Series Muffler
AU $227.87
+AU $110.76 postage
40 Series Performance Muffler
item 39 40 Series Performance Muffler
AU $211.86
+AU $127.11 postage
Flowmaster 425404 40 Series Muffler | High-Quality Auto Part, Universal Fit for
item 40 Flowmaster 425404 40 Series Muffler | High-Quality Auto Part, Universal Fit for
AU $229.69
+AU $110.81 postage
Flowmaster 425404 40 Series Muffler | High-Quality Auto Part, Universal Fit for
item 41 Flowmaster 425404 40 Series Muffler | High-Quality Auto Part, Universal Fit for
AU $229.69
+AU $110.81 postage
Exhaust Muffler Flowmaster 425404
item 42 Exhaust Muffler Flowmaster 425404
AU $233.90
+AU $110.95 postage
Exhaust Muffler Flowmaster 425404
item 43 Exhaust Muffler Flowmaster 425404
AU $241.16
+AU $111.18 postage
Flowmaster Original 40 Series Muffler 2.5" Dual - 425404 #7133 AMZ34
item 44 Flowmaster Original 40 Series Muffler 2.5" Dual - 425404 #7133 AMZ34
AU $161.38
+AU $202.23 postage
Flowmaster 40 Series Chambered Muffler, 2.50" Dual In / Dual Out - 425404
Last one
item 45 Flowmaster 40 Series Chambered Muffler, 2.50" Dual In / Dual Out - 425404
AU $207.35
+AU $157.32 postage
Flowmaster 425404 Original 40 Series Muffler 2.5" Dual Inlet / 2.5" Outlet NEW
item 46 Flowmaster 425404 Original 40 Series Muffler 2.5" Dual Inlet / 2.5" Outlet NEW
AU $170.41
+AU $202.54 postage
Flowmaster Exhaust Muffler - Universal Muffler-Not a direct fit. Some adaptation
item 47 Flowmaster Exhaust Muffler - Universal Muffler-Not a direct fit. Some adaptation
AU $170.95
+AU $202.55 postage
Flowmaster 425404 Original 40 Series Muffler 2.5" Dual Inlet / 2.5" Dual Outlet
item 48 Flowmaster 425404 Original 40 Series Muffler 2.5" Dual Inlet / 2.5" Dual Outlet
AU $172.27
+AU $202.59 postage
Fits Flowmaster 40 Series Performance Muffler 425404
item 49 Fits Flowmaster 40 Series Performance Muffler 425404
AU $194.46
+AU $203.31 postage
Flowmaster 40 Series 2.5" Dual In 2.5" Dual Out Aggressive Chambered Muffler
item 50 Flowmaster 40 Series 2.5" Dual In 2.5" Dual Out Aggressive Chambered Muffler
AU $202.59
+AU $203.57 postage
Flowmaster 40 Series 2.5" Dual In 2.5" Dual Out Aggressive Chambered Muffler
Last one
item 51 Flowmaster 40 Series 2.5" Dual In 2.5" Dual Out Aggressive Chambered Muffler
AU $202.59
+AU $203.57 postage
Flowmaster 425404 40 Series Muffler
item 52 Flowmaster 425404 40 Series Muffler
AU $211.45
+AU $203.87 postage
FLOWMASTER 40 Series Performance Muffler 425404
item 53 FLOWMASTER 40 Series Performance Muffler 425404
AU $213.16
+AU $203.92 postage
Flowmaster Original 40 Series Exhaust Muffler 2.5" Inlet Outlet Dual Black Steel
item 54 Flowmaster Original 40 Series Exhaust Muffler 2.5" Inlet Outlet Dual Black Steel
AU $275.01
+AU $205.93 postage
Flowmaster 425404 Universal Chambered Muffler 2.5" Dual In x Out - Pair
item 55 Flowmaster 425404 Universal Chambered Muffler 2.5" Dual In x Out - Pair
AU $336.10
+AU $207.91 postage
listings for this product

Ratings and reviews

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4.9
32 product ratings
  • 31 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 26 reviews
  • by slugs999760
    30 Oct, 2019

    BMW growl

    My 325i was so quiet, I couldn't tell if I was in 3rd or 5th in town. ( other than tach) 40 series sounds great, no raspy tin can like most imports. Good throaty growl and very little drone at highway speeds.

    Verified purchase: YesCondition: New

  • by pimptydimp
    20 Feb, 2020

    Good sound, not super loud.

    Put this one a 2002 Sierra 6.0. Had duals ran out. Sounds great. Good idle rumble. Good under load as well. Not super aggressive but loud enough to hear it. Slight drone with the music off.

    Verified purchase: YesCondition: New

  • by mrscavanagh
    15 Jun, 2022

    Perfect

    This mufler is just what my husband wanted. Our old flowmaster just got old and time for a new one. This is just what he needed. It's the same as his original and sounds great. Definitely recommend!

    Verified purchase: YesCondition: New

  • by brooke-1
    18 Aug, 2024

    Love flow master sound but one draw back...

    Love flow master sound but one draw back , I’ve had two where the baffles on the inside came apart and started rattling

    Verified purchase: YesCondition: New

  • by 1matt1
    19 Jan, 2021

    Perfect fit and sound

    Installed today perfect sound on my Tundra I love it

    Verified purchase: YesCondition: New

  • by jef-rich
    02 Jun, 2024

    Sounds good not what I really expected but it’s on a V6 so not bad

    Sounds good not what I really expected but it’s on a V6 so not bad

    Verified purchase: YesCondition: New

  • by chacon6151
    02 Apr, 2021

    love the sound

    makes my truck sound great

    Verified purchase: YesCondition: New

  • by tinsldanie
    27 Dec, 2019

    Amazing

    Great quality products, got my order in just a few days and sounds great

    Verified purchase: YesCondition: New

  • by georgwildca-6
    07 Dec, 2024

    Had it installed on my great sound love ...

    Had it installed on my great sound love it.

    Verified purchase: YesCondition: Pre-owned

  • by johnnie5238
    26 Nov, 2020

    Fantastic product.

    Muffler sounds just like the video by Flowmaster. A+A+A+

    Verified purchase: YesCondition: New

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