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Flowmaster Original 40 Series Muffler 2.5" Dual - 425404 #7133 AMZ34 - Picture 1 of 2
Flowmaster Original 40 Series Muffler 2.5" Dual - 425404 #7133 AMZ34 - Picture 2 of 2

Exhaust Muffler Flowmaster 425404

4.9433 product ratings
Multicarauto (1692)
99.9% positive feedback
Price:
$95.55
Free delivery in 2-5 days - Arrives by Thanksgiving
Get it between Fri, Nov 14 and Tue, Nov 18
Returns:
30 days returns. Seller pays for return shipping.
Condition:
New
Flowmaster Original 40 Series Muffler 2.5" Dual - 425404. #7133 Z3/14a (vt). Flowmaster Original Muffler.

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 Nowselected
New
Flowmaster Original 40 Series Muffler 2.5" Dual - 425404 #7133 AMZ34
item 1 Flowmaster Original 40 Series Muffler 2.5" Dual - 425404 #7133 AMZ34
$95.55
Free shipping
Flowmaster 425404 Aluminized Steel Oval Black Chambered Dual Exhaust Muffler
item 2 Flowmaster 425404 Aluminized Steel Oval Black Chambered Dual Exhaust Muffler
$99.95
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Exhaust Muffler Flowmaster 425404
item 3 Exhaust Muffler Flowmaster 425404
$99.95
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Flowmaster Original 40 Series Muffler 2.5" Dual / Dual - 425404
item 4 Flowmaster Original 40 Series Muffler 2.5" Dual / Dual - 425404
$99.95
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Flowmaster 425404 40 Series Muffler 2.50" IN(D)/OUT(D) Aggressive Sound
item 5 Flowmaster 425404 40 Series Muffler 2.50" IN(D)/OUT(D) Aggressive Sound
$99.95
Free shipping
Flowmaster 425404 Exhaust Muffler
item 6 Flowmaster 425404 Exhaust Muffler
$99.95
Free shipping
NEW FLOWMASTER 40 SERIES CHAMBERED MUFFLER,BLACK,2.5" DUAL IN,2.5" DUAL OUT
item 7 NEW FLOWMASTER 40 SERIES CHAMBERED MUFFLER,BLACK,2.5" DUAL IN,2.5" DUAL OUT
$99.95
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Flowmaster 40 Series Chambered Muffler 2.5" IN (Dual) / OUT(Dual) 425404
Last one
item 8 Flowmaster 40 Series Chambered Muffler 2.5" IN (Dual) / OUT(Dual) 425404
$99.95
Free shipping
Flowmaster 425404 Exhaust Muffler FLO425404
item 9 Flowmaster 425404 Exhaust Muffler FLO425404
$99.95
Free shipping
Flowmaster 40 Series Chambered Muffler 2.5" IN (Dual) / OUT(Dual) 425404
item 10 Flowmaster 40 Series Chambered Muffler 2.5" IN (Dual) / OUT(Dual) 425404
$99.95
Free shipping
Flowmaster 425404 40 Series Muffler 2.5" Dual Inlet 2.5" Dual Outlet
item 11 Flowmaster 425404 40 Series Muffler 2.5" Dual Inlet 2.5" Dual Outlet
$99.95
Free shipping
Flowmaster 425404 Original 40 Series Muffler 2.5" Dual Inlet / 2.5" Outlet NEW
item 12 Flowmaster 425404 Original 40 Series Muffler 2.5" Dual Inlet / 2.5" Outlet NEW
$100.90
Free shipping
Flowmaster 425404 Original 40 Series Muffler 2.5" Dual Inlet / 2.5" Dual Outlet
item 13 Flowmaster 425404 Original 40 Series Muffler 2.5" Dual Inlet / 2.5" Dual Outlet
$102.00
Free shipping
Flowmaster Exhaust Muffler - Universal Muffler-Not a direct fit. Some adaptation
item 14 Flowmaster Exhaust Muffler - Universal Muffler-Not a direct fit. Some adaptation
$103.29
Free shipping
Flowmaster 425404 2.5" Dual In/Out 40 Series Aggressive Sound Chambered Muffler
item 15 Flowmaster 425404 2.5" Dual In/Out 40 Series Aggressive Sound Chambered Muffler
$103.32
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Flowmaster 425404 - Original 40 Series Muffler 2.5" Dual/Dual
item 16 Flowmaster 425404 - Original 40 Series Muffler 2.5" Dual/Dual
$104.70
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Flowmaster Original 40 Series Exhaust Muffler 2.5" Inlet Outlet Dual Black Steel
Almost gone
item 17 Flowmaster Original 40 Series Exhaust Muffler 2.5" Inlet Outlet Dual Black Steel
$104.95
Free shipping
Flowmaster 40 Series Chambered 2.5” Muffler D/D 9.5” Body 4” x 13” Unv. Exhaust
item 18 Flowmaster 40 Series Chambered 2.5” Muffler D/D 9.5” Body 4” x 13” Unv. Exhaust
$105.44
Free shipping
Flowmaster 40 Series 2.5" Dual/Dual Muffler Aluminized 425404
item 19 Flowmaster 40 Series 2.5" Dual/Dual Muffler Aluminized 425404
$99.95
+$6.31 shipping
Flowmaster Flowmaster 40 Series Chambered Muffler
item 20 Flowmaster Flowmaster 40 Series Chambered Muffler
$106.52
Free shipping
Flowmaster 425404
item 21 Flowmaster 425404
$107.95
Free shipping
Flowmaster 425404 40 Series Muffler
item 22 Flowmaster 425404 40 Series Muffler
$108.72
Free shipping
Flowmaster 425404 Original 40 Series Muffler 2.5" Dual Inlet/2.5" Dual Outlet
item 23 Flowmaster 425404 Original 40 Series Muffler 2.5" Dual Inlet/2.5" Dual Outlet
$109.23
Free shipping
Flowmaster 425404 40 Series Chambered Rumble Muffler Dual 2.5" Inlet/Outlet
item 24 Flowmaster 425404 40 Series Chambered Rumble Muffler Dual 2.5" Inlet/Outlet
$109.67
Free shipping
Flowmaster 40 Series 2.5" Dual In 2.5" Dual Out Aggressive Chambered Muffler
item 25 Flowmaster 40 Series 2.5" Dual In 2.5" Dual Out Aggressive Chambered Muffler
$109.95
Free shipping
Flowmaster 425404 40 Series Chambered Muffler 2.50 Dual In / 2.5 Dual Out
item 26 Flowmaster 425404 40 Series Chambered Muffler 2.50 Dual In / 2.5 Dual Out
$99.95
+$10.09 shipping
Flowmaster 40 Series Muffler - 2.50" IN(D)/OUT(D) - Aggressive Sound
item 27 Flowmaster 40 Series Muffler - 2.50" IN(D)/OUT(D) - Aggressive Sound
$110.36
Free shipping
Flowmaster 425404 - Original 40 Series Muffler 2.5" Dual/Dual
item 28 Flowmaster 425404 - Original 40 Series Muffler 2.5" Dual/Dual
$110.42
Free shipping
Exhaust Muffler Flowmaster 425404
item 29 Exhaust Muffler Flowmaster 425404
$111.30
Free shipping
Flowmaster 40 Series Performance Muffler 425404
item 30 Flowmaster 40 Series Performance Muffler 425404
$111.47
Free shipping
Flowmaster 425404 40 Series Chambered Muffler
item 31 Flowmaster 425404 40 Series Chambered Muffler
$99.95
+$11.95 shipping
425404 Flowmaster 40 Series Chambered Muffler
item 32 425404 Flowmaster 40 Series Chambered Muffler
$99.95
+$11.95 shipping
Flowmaster 425404 40 Series Chambered Muffler
item 33 Flowmaster 425404 40 Series Chambered Muffler
$99.95
+$11.95 shipping
425404 Flowmaster 40 Series Chambered Muffler
item 34 425404 Flowmaster 40 Series Chambered Muffler
$99.95
+$11.95 shipping
Flowmaster 40 Series Muffler 425404
item 35 Flowmaster 40 Series Muffler 425404
$111.94
Free shipping
Flowmaster 425404
item 36 Flowmaster 425404
$113.61
Free shipping
Flowmaster 425404 40 Series Muffler
item 37 Flowmaster 425404 40 Series Muffler
$99.95
+$14.49 shipping
Fits Flowmaster 40 Series Performance Muffler 425404
item 38 Fits Flowmaster 40 Series Performance Muffler 425404
$115.60
Free shipping
Flowmaster 425404
item 39 Flowmaster 425404
$115.69
Free shipping
Flowmaster 425404 40 Series Muffler, 2.50 IN(D)/OUT(D)
item 40 Flowmaster 425404 40 Series Muffler, 2.50 IN(D)/OUT(D)
$99.95
+$15.99 shipping
Flowmaster 425404 40 Series Original Muffler Dual In/Dual Out: 2.5 Aluminized St
item 41 Flowmaster 425404 40 Series Original Muffler Dual In/Dual Out: 2.5 Aluminized St
$99.95
+$15.99 shipping
Flowmaster FLO425404 2.50 IN(D)/OUT(D) 40 SERIES
item 42 Flowmaster FLO425404 2.50 IN(D)/OUT(D) 40 SERIES
$118.62
Free shipping
Flowmaster 425404 40 Series Muffler
item 43 Flowmaster 425404 40 Series Muffler
$119.45
Free shipping
Flowmaster 40 Series 2.5" Dual In 2.5" Dual Out Aggressive Chambered Muffler
Last one
item 44 Flowmaster 40 Series 2.5" Dual In 2.5" Dual Out Aggressive Chambered Muffler
$119.95
Free shipping
Exhaust Muffler Flowmaster 425404
item 45 Exhaust Muffler Flowmaster 425404
$122.00
Free shipping
Flowmaster 40 Series Chambered Muffler 2.50" Dual In / Dual Out - 425404
item 46 Flowmaster 40 Series Chambered Muffler 2.50" Dual In / Dual Out - 425404
$122.77
Free shipping
Flowmaster 425404 40 Series Muffler
item 47 Flowmaster 425404 40 Series Muffler
$123.54
Free shipping
Flowmaster Muffler 425404; Original 40 Series Aluminized 2.50" Dual 2.50" Dual
item 48 Flowmaster Muffler 425404; Original 40 Series Aluminized 2.50" Dual 2.50" Dual
$123.73
Free shipping
Flowmaster 425404 40 Series Muffler
item 49 Flowmaster 425404 40 Series Muffler
$125.20
Free shipping
425404 Flowmaster Muffler Oval
item 50 425404 Flowmaster Muffler Oval
$125.42
Free shipping
FLOWMASTER 425404 40 Series
item 51 FLOWMASTER 425404 40 Series
$111.94
+$13.98 shipping
Flowmaster 425404 40 Series Muffler
item 52 Flowmaster 425404 40 Series Muffler
$116.00
+$9.95 shipping
Flowmaster Flowmaster 40 Series Chambered Muffler 425404
item 53 Flowmaster Flowmaster 40 Series Chambered Muffler 425404
$126.71
Free shipping
Flowmaster 40 Series Chambered Muffler Universal Muffler-Not a direct fit. Some
item 54 Flowmaster 40 Series Chambered Muffler Universal Muffler-Not a direct fit. Some
$128.69
Free shipping
40 Series Performance Muffler
item 55 40 Series Performance Muffler
$121.39
+$9.99 shipping
Flowmaster 425404 40 Series™ fler for MUF
item 56 Flowmaster 425404 40 Series™ fler for MUF
$132.43
Free shipping
Exhaust Muffler Flowmaster 425404
item 57 Exhaust Muffler Flowmaster 425404
$132.78
Free shipping
Flowmaster 425404 40 Series Muffler
item 58 Flowmaster 425404 40 Series Muffler
$134.92
Free shipping
Exhaust Muffler Flowmaster 425404
item 59 Exhaust Muffler Flowmaster 425404
$135.03
Free shipping
listings for this product

Ratings and Reviews

Learn more
4.9
33 product ratings
  • 32 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 27 reviews
  • by slugs999760
    Oct 30, 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
    Feb 19, 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
    Jun 14, 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 criscr9995
    Nov 09, 2025

    Good quality and sounds good. Installati...

    Good quality and sounds good. Installation wise it’s better to weld it on then clamp it. Good price too performance is good

    Verified purchase: YesCondition: New

  • by brooke-1
    Aug 18, 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
    Jan 18, 2021

    Perfect fit and sound

    Installed today perfect sound on my Tundra I love it

    Verified purchase: YesCondition: New

  • by jef-rich
    Jun 01, 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
    Apr 01, 2021

    love the sound

    makes my truck sound great

    Verified purchase: YesCondition: New

  • by tinsldanie
    Dec 26, 2019

    Amazing

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

    Verified purchase: YesCondition: New

  • by georgwildca-6
    Dec 07, 2024

    Had it installed on my great sound love ...

    Had it installed on my great sound love it.

    Verified purchase: YesCondition: Pre-owned

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