- Standard Duty, Heavy Duty, Super Duty.
- Industry's most comprehensive coverage.
- 409 stainless steel shell and neck construction for longer life.
- Many direct fit converters have OEM style air tubes.
- OBDII coverage.
- Manufactured from high quality materials.
- Design meets 100% EPA and C.A.R.B emission requirements as cataloged.
- 5-year/50,000 mile manufacturer warranty.
