Although I’m a dire 2 stroke fan and will cling onto them kicking and screaming, unfortunately 4 strokes are the way forward with emissions laws and so forth, but they’ve always been slow. Well not anymore! The amount of tuning parts for Chinese scooters is surprisingly low considering they’re generally the best selling scooter when you group all the various brands together who sell the same basic scooter, but there’s now enough parts out to get a fairly good performing scooter, although it still won’t be a patch on the 2 stroke scooters. Unlike the 2 strokes where the exhaust makes quite a large difference in power delivery, 4 strokes aren’t affected as much so firstly I’d recommend fitting a big bore kit, after all, there’s no replacement for displacement. Airsal manufacture an 80cc big bore kit for the 4 stroke Chinese scooters, which is a surprisingly high quality piece of kit, with an Aluminium cylinder and nickel silicon carbide barrel coating for minimal friction, which helps when you consider how many piston rings the 4 strokes have! Fitting the Airsal big bore kit is fairly simply on the Chinese scooters, although it’s still a lot more complicated that two strokes since you’ll ...

Giannelli Exhausts, in my opinion, out of all the performance race exhaust manufacturers out there, deliver the best possible combination of price, performance and reliability, which are the three main things to consider when fitting an exhaust to a road tuned scooter. I’ve had experience with LeoVince exhausts, Hebo exhausts, Kundo exhausts, Technigas exhausts and many other major brands of performance exhaust manufactures, but in my mind Giannelli Exhausts have always proved to be the best I could fit when tuning 50cc scooters. The problem I’ve always found in the past is that shops who supply parts only tend to push the cheaper brands more than the quality exhausts as there is a lot more mark-up in them, especially brands like Technigas. From working as a mechanic in a dedicated scooter shop, we always refused to sell cheaper brands as it was us who would be fitting them 9 times out of 10, and us people would complain to when their mates scooters ended up faster because they had a cheap Technigas exhaust fitted, so we quickly found out that Giannelli Exhausts offer the best package for tuning road scooters. My personal favourite Giannelli Exhaust is the Giannelli “Reverse” Exhaust which retails at ...