right yes, the higher the number ' the more ' basically... so if you increase the red one...the rev limit will increase...you cant increase it over standard tho, and if you try you will just hit your normal ecu rev limit...
the white one,....if you have wired it up to the handbrake, its the same as the red one..the higher the number and the higher the limiter is set...once again if you try to fo above the standard one...you wont hit the bee*r limiter..you will hit the standard one, which means no pops or bangs..
The yellow one....GAIN...the more number, it then goes into letters, is how long it cuts the igintion for the higher the numbers, and then letters, the louder and longer the bang is mate
Hope this helps...it would help if i know what you had it set on
Thanks!