Loading. Please wait.

fmm_logo1

*FREE GROUND SHIPPING on items $25 or more!
*Free ground shipping for orders shipped to continental United States Only
707-544-4761


Shop by Vehicle



 

FLOWMASTER 80 SERIES CROSS-FLOW MUFFLERS

For True Dual exhaust performance where only a single exhaust system will fit such as is commonly found in classic Camaros and Firebirds, the 80 Series Cross-Flow Muffler fits transversely behind the rear axle and in front of the fuel tank, the OE placement. With single or dual inlets, the 80 Series gives excellent ground clearance, aggressive tone and dual outlets to fit muscle cars requiring this specialized fitment. Constructed of 16-gauge aluminized steel and fully MIG-welded for maximum durability.

  • Aggressive sound and increased power/torque output over stock
  • Perfect replacement for Camaro/Firebird configuration
  • Available in stainless steel or aluminized steel
  • 409S Stainless Steel muffler backed by lifetime warranty
  • Available with either single or dual outlets

 

 

 

 

80 Series Cross Flow Mufflers

IN/OUT O/D D/D O/SAME SIDE
2.50"/2.50"
SELECT Part_Number FROM fmmnew.part_sizes WHERE category2 LIKE '%80 Series%' AND outlet_position = 'Dual' AND outlet_diameter = '2.50' AND inlet_position = 'Offset' AND inlet_diameter = '2.50' AND description NOT LIKE '%80 Series Muffler 409S%'
42583
SELECT Part_Number FROM fmmnew.part_sizes WHERE category2 LIKE '%80 Series%' AND outlet_position = 'Dual' AND outlet_diameter = '2.50' AND inlet_position = 'Dual' AND inlet_diameter = '2.50' AND description NOT LIKE '%80 Series Muffler 409S%'
42582
SELECT Part_Number FROM fmmnew.part_sizes WHERE category2 LIKE '%80 Series%' AND outlet_position = 'Same Side' AND outlet_diameter = '2.50' AND inlet_position = 'Offset' AND inlet_diameter = '2.50' AND description NOT LIKE '%80 Series Muffler 409S%'
52580
3.00"/2.50"
SELECT Part_Number FROM fmmnew.part_sizes WHERE category2 LIKE '%80 Series%' AND outlet_position = 'Dual' AND outlet_diameter = '2.50' AND inlet_position = 'Offset' AND inlet_diameter = '3.00' AND description NOT LIKE '%80 Series Muffler 409S%'
43083
53083
SELECT Part_Number FROM fmmnew.part_sizes WHERE category2 LIKE '%80 Series%' AND outlet_position = 'Dual' AND outlet_diameter = '2.50' AND inlet_position = 'Dual' AND inlet_diameter = '3.00' AND description NOT LIKE '%80 Series Muffler 409S%'
SELECT Part_Number FROM fmmnew.part_sizes WHERE category2 LIKE '%80 Series%' AND outlet_position = 'Same Side' AND outlet_diameter = '2.50' AND inlet_position = 'Offset' AND inlet_diameter = '3.00' AND description NOT LIKE '%80 Series Muffler 409S%'
409S Stainless Steel Models
2.50"/2.50"
SELECT Part_Number FROM fmmnew.part_sizes WHERE category2 LIKE '%80 Series%' AND outlet_position = 'Dual' AND outlet_diameter = '2.50' AND inlet_position = 'Offset' AND inlet_diameter = '2.50' AND description LIKE '%80 Series Muffler 409S%'
842583
SELECT Part_Number FROM fmmnew.part_sizes WHERE category2 LIKE '%80 Series%' AND outlet_position = 'Dual' AND outlet_diameter = '2.50' AND inlet_position = 'Dual' AND inlet_diameter = '2.50' AND description LIKE '%80 Series Muffler 409S%'
SELECT Part_Number FROM fmmnew.part_sizes WHERE category2 LIKE '%80 Series%' AND outlet_position = 'Same Side' AND outlet_diameter = '2.50' AND inlet_position = 'Offset' AND inlet_diameter = '2.50' AND description LIKE '%80 Series Muffler 409S%'