They lowered the rev limiter for a reason, obviously because of reliability issues. Anyone who buys power FC to expand their revs is asking for bad shit to happen to them.
LOL, the only "reliability issues" were the drivers.
The limiter was lowered for only one year (02), the same year that Toyota first altered the shift gates, to try to stop idiots from misshifting then blaming Toyota for making the car easy to misshift so they could get warranty repairs.
The changes didn't work, since people are still misshifting 02s through 04s.
Toyota basically screwed themselves into changing the limiter and the shift gates by actually covering misshifts from 00-01 under warranty. Honda didn't put up with that BS when it happened to their RSX-S and S2000, and most misshifts weren't covered under warranty.
So they never felt pressured into dumbing down the car for the masses like Toyota did.
The engine has basically been the same from 00-05, the only difference being different exhaust valves and air injection for the header in the later years (emissions control). The average GTS engine can go up to about 10K before it blows, so the 600 RPM difference in 02 wouldn't be large enough to affect reliability in the least. Most people who have the PFC raise their limiter to 8600-8700 on stock internals and have had no negative effects.