Does anyone happen to know the difference between the part numbers on the headers? The 15330's are for 99-04, and the 15320's are for previous years. Is there actually a difference, or are they interchangeable?
Difference between BBK 15320 & 15330 Full Length Headers
- Thread starter JTStreet
- Start date
I believe the 15320's will have a tube for the secondary air injection that will need to be plugged up.
Other than that I think they are interchangeable.
Other than that I think they are interchangeable.
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