hi. all
Anyone have one of these in line fuel catalyst thingy's fitted,they claim to up the octane but it seems like a bit of hocus pocus i am going to see one later would appreciate any info especially if anyone has tested it.i ve been doing a lot of research on octane booster and it seems most are useless unless your adding about a gallon per tank i got the chemical breakdown on proboost and its nothing special very easy mix.

 

This has been discussed on here lots of times. It comes up every few months.
I have no reason to believe the fuel cat works but I know that NF octane booster works as does Millar's CVL but the Millars is 1 bottle per 20 litres.