I didn't change the plugs on my MK5 GTI, which was running Superchips stage 2, until 60K and never had any issues.
Just went for the OEM coil packs after I had one replaced under warranty, I saw the R8 ones but just thought I would stick with the originals as I thought they would be matched to the other components.
Now the exhaust pipes never soot up like they used to, they are still clean after 1000 miles of driving.
