Flowmaster Original 40 Series Muffler. It is designed for universal use and is not a direct fit for any vehicle application.

Welding, fabrication or adaptation may be required for your installation purpose.

Series/Material: 40 Series Original Muffler Aluminized Steel

40 Series Muffler, 2.5" IN (Side-Offset) / OUT (Side-Offset): Body - 13" L x 9.75" W x 4" H - 16Gauge Aluminized Steel

Part # 42543

Produces an aggressive sound
Loud classic "Flowmaster Sound"
Proven increase in horsepower & torque
Choice for aggressive street machine/rod builders
Notable interior resonance
Durable fully welded muffler
Made in the USA

The Original 40 series muffler is the muffler that started it all. This muffler delivers a loud aggressive exterior and interior tone. This muffler is recommend for those that want to hear their exhaust system and that great muscle car tone. If you are looking for that original Flowmaster sound, this is the muffler for you. This muffler is not recommend for those that want low interior drone.