Flowmaster 40 Series Chambered Muffler - Flowmaster (42443)
Sale Price$107.87
Description : 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 for you. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
40 Series - 2.25 Offset In / 2.25 Offset Out - Aggressive Sound
2.25IN(O)/OUT(O) 40 SERIES
MUFF 2.25IN
Universal Muffler - Some adaptation may be required.
40 Series - 2.25 Offset In / 2.25 Offset Out - Aggressive Sound
2.25IN(O)/OUT(O) 40 SERIES
MUFF 2.25IN
Universal Muffler - Some adaptation may be required.
- Return Policy
- Min. 12 Months
- Safe, Secure Checkout
Product Details
Installation GuideDescription
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 for you. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
40 Series - 2.25 Offset In / 2.25 Offset Out - Aggressive Sound
2.25IN(O)/OUT(O) 40 SERIES
MUFF 2.25IN
Universal Muffler - Some adaptation may be required.
40 Series - 2.25 Offset In / 2.25 Offset Out - Aggressive Sound
2.25IN(O)/OUT(O) 40 SERIES
MUFF 2.25IN
Universal Muffler - Some adaptation may be required.
Features & Benefits
- Durable fully-welded 16 gauge aluminized steel
- Aggressive sound exterior exhaust tone
- Noticeable interior resonance
- Excellent street/strip and off road application
Part Number (MPN)
42443
Brand
SKU
42443
UPC / GTIN
700042010318 / 00700042010318
Condition
New
Disclaimer
No
Body Height
4.00
Body Length
13.00
Body Material
Aluminized Steel
Body Width
9.50
Brand
Flowmaster
Category
Exhaust
Clamps Included
No
Emission Code
5
Exhaust Tip Quantity
0<br />Sold Separately
Finish
High-Temperature Paint
Fitment
Universal
Grade Type
Performance
Hanger Included
No
Heat Shield Attached
No
Inlet Connection
Slip-Fit
Inlet Diameter
2.25
Inlet Inside Diameter
2.25
Inlet Location
Offset
Inlet Outside Diameter
2.38
Inlet Quantity
1
Inlet Type
Weld-On<br />Clamp-On
Mount Type
Uses New Hangers (Not Included)
Muffler Series
Original 40 Series
Muffler Type
Chambered
Outlet Connection
Slip-Fit
Outlet Inside Diameter
2.25
Outlet Location
Offset
Outlet Outside Diameter
2.38
Outlet Quantity
1
Outlet Type
Single
Overall Length
19.00
part type
Exhaust Muffler
Product Type
Street Mufflers
Reversible
No
Shape
Oval
Sound Level
Aggressive
Sub Category
Mufflers
Tunable
No
Vehicle Type
Classic Muscle Car<br />Late Model Muscle Car<br />Truck/SUV<br />Street/Strip<br />Street Rod
| Year | Make | Model | Body & Trim | Engine & Transmission |
|---|---|---|---|---|
Vehicle #1
Year
Make
Model
Body & Trim
Engine & Transmission
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Operated by RevolutionParts Inc · Effective date: 11/2025 · Last updated: 4/2026... Check out our Shipping Policy for more details.
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