I'm trying to get to the bottom of this. I just left a comment on Pedro's video about the patent and he replied back saying that the "DOF" is patented. I asked him for the patent number, lets see what he comes back with.
https://www.youtube.com/watch?v=hzUq2DFpeKw&lc=z23sx3gaqwq3f10pf04t1aokgk3eeayxxuogyep2gkajrk0 h00410.1554936164430986
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2003 Boxster S
| 987 Air Box | K&N Air Filter | 76mm Intake Pipe| 996 76mm TB | 997 Distribution T | Secondary Cat Delete Pipes | Borla Muffler | NHP 200 Cell Exhaust Headers |
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