Flowmaster 40 Series Delta Flow 2.25" Offset In 2.25" Out Universal Muffler 2016–2020 Ford Mustang Shelby GT350R 5.2L For 2017-21

For 2017-21

The FlowFX system has a moderate deep powerful sound outside with minimal interior resonance

WELL-BUILT: Their UV-coated polycarbonate lens will resist the test of time

Maintains factory payload capability

The nozzle at high flow fuel stations(truck stops) will not be able to fill automatically

Flowmaster 40 Series Delta Flow 2.25" Offset In 2.25" Out Universal Muffler 2016–2020 Ford Mustang Shelby GT350R 5.2L For 2017-21This two chamber design incorporates Flowmaster's Delta Flow technology. The Delta deflectors generate increased scavenging for better performance and reduced interior sound. Milder exterior tone and reduced interior resonance over standard 40 series. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability. Features: No internal packing to blowout Race proven Delta Flow technology Excellent Street Strip and Off Road