Flowmaster 40 Series Delta Flow Muffler - 2" Offset - Inlet / Opposite Side Offset Outlet RS005003 1-3/4 to 2-1/2 in Bolt

1-3/4 to 2-1/2 in Bolt Pattern

It is the original and has been providing pre-oiling and surge protection in all types of racing and recreational vehicles for over 30 years

500" round port

CS130 alternator with the 6 & 10 o'clock mounting points shown in the important info

1972-1973 Jeep J-4800

Flowmaster 40 Series Delta Flow Muffler - 2" Offset - Inlet / Opposite Side Offset Outlet RS005003 1-3/4 to 2-1/2 in BoltThis two chamber design incorporates Flowmaster's patented Delta Flow technology. The Delta deflectors generate increased scavenging for better performance and reduced interior sound. Milder exterior tone and reduced interior resonance over Original 40 series. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability. Features: Durable Fully Welded 16 Gauge Aluminized Steel 3 Year Limited Warranty Aggressive To Moderate