Overdose effects is a total remake of San Andreas particle effects.
V1.5 Features a balance between realism and extreme.
Check the GTA Forums topic for additional information.
Don't forget to comment and rate and post some ideas for later releases.
It's a good mod, but the smoke and rainsplashes are excessive. If you can tone it down a bit, it would be perfect. It was nigh-impossible to navigate during "Burning Desire" because the smoke was blocking everything, and in restaurants the smoke effects just look ridiculous.