The 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.
WarrantyInstallation Instructions
- Excellent Street/Strip and Off Road application
- Durable fully welded 16 gauge aluminized steel
- Aggressive Sound Exterior Exhaust Tone
- No internal packing to blowout