[IMADreamer]

This seems to be a popular mod however if you talk to tuners and people with some actually knowledge of what's going on with the stage 2 tune and the LSJ they will tell you this is a bad idea without a custom tune. Essentially you are taking a tune that is designed for a larger pulley and then mechanically leaning it out with the smaller pulley. This is basically guessing and praying that you are hitting safe AFRs. If you do this you MUST run a wideband AFR gauge. Even then chances are when you see things start to go wrong it's too late. Basically the same thing will happen that is happening with the guys running the 2.6 pulleys on the custom tunes, you are going to starve the #4 cylinder and blow the ring land.

There have been one or two guys that this has happened to so far and I'm sure many more are going to have this problem when the weather changes for summer.

The bottom line is running the 2.8 on the S2 tune is extremely risky.