New Arrivals/Restock

Flowmaster 40 Series Original Chambered Muffler – 2.25” Offset In / 2.25” Offset Out – Aggressive Sound – 16-Gauge Aluminized Steel – For Muscle Cars, Street Rods, Trucks & SUVs (42443)

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$59.99 cheaper than the new price!!

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Product details

Management number 211951139 Release Date 2026/04/06 List Price $40.00 Model Number 211951139
Category
  • LEGENDARY SOUND: This is the original Flowmaster muffler that enthusiasts know and love! Famous for its bold, aggressive bark and signature tone. It delivers the unmistakable attitude and street presence that made Flowmaster a legend.
  • TWO-CHAMBERED INTERNAL DESIGN: Flowmaster’s classic two-chambered layout delivers that bold, aggressive exhaust sound Flowmaster is known for. Perfect for muscle cars, street rods, trucks, off-road rigs, and custom builds.
  • PROVEN PERFORMANCE: Enhances airflow and reduces back pressure to help boost horsepower, torque, and throttle response.
  • BUILT TO LAST: Made from 16-gauge aluminized steel and fully MIG-welded to withstand high heat and vibration with no internal packing to blow out or wear down.
  • UNIVERSAL FITMENT: Designed for custom and modified exhaust systems, with multiple inlet/outlet sizes and configurations (center/offset, dual) for simplified installation and optimal fit.

UPC 700042010318
Shape Oval
Brand Name Flowmaster
Unit Count 1.0 Count
Item Weight 1 Pounds
Manufacturer Flowmaster
Model Number 42443
Material Type Alloy Steel
Item Type Name Flowmaster 42443 40 Series Muffler - 2.25 Offset IN / 2.25 Offset OUT - Aggressive Sound
Item Dimensions 1 x 1 x 1 inches
Automotive Fit Type Universal Fit
Included Components Flowmaster 42443 40 Series Muffler - 2.25 Offset IN / 2.25 Offset OUT - Aggressive Sound
Part Interchange Info 42443
Manufacturer Part Number 42443
OEM Equivalent Part Number 42443
Compatible with Vehicle Type Car
Manufacturer Warranty Description Check with the manufacturer
Global Trade Identification Number 00700042010318

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