I had 2 groms before the rebel and have enjoyed both but there were loads more parts for the MSX. Not sure where the relay is yet, think it may be under the tank. I would like to put switchback LED's on the same as on my SF but so far only put smoked lenses and orange bulbs that i had sitting around in my garage as indicators are exactly the same. I can deffo say the Musarri exhaust is a great value for money choice and sounds awesome without the baffle in. I put ASV levers on my grom but haven't bothered changing the CMX ones yet as i was dissapointed when they faded a bit. Being a bit short i loosened off the handlebars and rotated them back towards me and it helped hugely with the straight arm problem. You can also buy H2C risers for them. Hope you enjoy the ride bud.