Generally i do not write reviews but this is the little cam that can!
I have the Deca air intake and the TST airbox cover supplied by DHM. Leo Vince exhaust. -eBay Special
My bike is a Euro bike so had to use the powervision 3 to map the S1 Cam and fortunately the PV3 came with a map with 90% of my mods winner.
Out the box the cam just rips, Hills on the Isle of man aren’t Grom friendly - Hills that i use to ping between 3-4th gear about 50mph are now hills i sit in 4th, it now pulls like it should. 400rpm higher on the map i didn’t think would make much difference does! Install is easy. Just awaiting the next Grom ride out to put it head to head with others!
I still cant get over the speed of delivery - From the US to the IoM quicker than parcels take from the Uk to IoM! Less than 7 days on the last lot.