about 10K miles on them - maybe less. Worked perfectly and were very easy to tune. I recently upgraded to DW 850s because I am running E85 and planning on going with a bigger turbo.
These come with flow sheets and the paperwork to return your stockers to DW.
Price Drop - looking for $325 Shipped - SOLD.
Detailed pics Here: https://picasaweb.google.com/Vervish...N-q4YrqnpHtLA#