This two chamber design incorporates Flowmasters 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.
- Durable fully welded 16 gauge aluminized steel
- Race proven patented Delta Flow technology
- Excellent Street/Strip and Off Road application
- No internal packing to blowout
- Made in the USA
- Premium Flowmaster quality
Application:
- 1988-1990 CHEVROLET K3500 SCOTTSDALE V8 5.7
- 1988-1990 CHEVROLET K3500 SCOTTSDALE V8 7.4
- 1988-1995 CHEVROLET K3500 CHEYENNE V8 5.7
- 1988-1995 CHEVROLET K3500 CHEYENNE V8 7.4
- 1988-1995 CHEVROLET K3500 SILVERADO V8 5.7
- 1988-1995 CHEVROLET K3500 SILVERADO V8 7.4
- 1994-1995 CHEVROLET K3500 BASE V8 5.7
- 1994-1995 CHEVROLET K3500 BASE V8 7.4
- 1988-1995 GMC K3500 SIERRA SLE V8 5.7
- 1988-1995 GMC K3500 SIERRA SLE V8 7.4
- 1988-1993 GMC K3500 SIERRA V8 5.7
- 1988-1993 GMC K3500 SIERRA V8 7.4
