Flowmaster 40 Series 2.25" In/Out Offset Aggressive Chambered Universal Muffler 2001-2007 Chevrolet Silverado 3500 including rear wheel drive and

including rear wheel drive and four wheel drive models

2015+ 900 models

5 or M16x1

The stock EPC functions to modulate line pressure

Flowmaster 40 Series 2.25" In/Out Offset Aggressive Chambered Universal Muffler 2001-2007 Chevrolet Silverado 3500 including rear wheel drive andThe Original 40 series muffler delivers an aggressive exterior and interior tone. If you're looking for that original Flowmaster sound this is the muffler is for you. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability. Features: Noticeable interior resonance Aggressive Sound Exterior Exhaust Tone Excellent Street Strip and Off Road application Durable fully welded 16 gauge aluminized steel Fitment: Universal Fitment