Sport exhaust Giannelli Extra V2 – Honda Bali / SFX / X8R

The Giannelli Extra V2 is one of the most popular sport exhausts for 50cc scooters. It is an excellent choice for those who want a bit more power and better acceleration without sacrificing the scooter's everyday reliability.

Why choose the Giannelli Extra V2?

• Better dynamics: This exhaust is designed to optimise the flow of exhaust gases. This lets the engine "breathe" more easily, so the scooter's acceleration and throttle response improve noticeably.

• Suitable for "Sport" class tuning: It pairs perfectly with both the original 50cc cylinder and popular 70cc "Sport" class cylinder kits.

• Quality construction: The V2 version features an improved expansion chamber and a quality aluminium silencer end, giving a "sportier" sound and look.

• Homologation: Most Giannelli Extra V2 models have E-approval (homologation), which means they meet certain noise and emission standards (check the markings on the specific package).

Technical specifications

Parameter	Description
Manufacturer	Giannelli
Range	Extra V2
Compatibility	Honda Bali, SFX, X8R
Type	Sport exhaust (expansion)
Application	50cc–70cc "Sport" class

Important recommendations after fitting:

1. Carburettor adjustment (ESSENTIAL): With a sport exhaust fitted, more air enters the engine, so the factory fuel mixture setting will no longer be enough. You must fit a bigger carburettor main jet (usually around 5–10% larger than standard), otherwise you risk "overheating" the piston and ruining the cylinder because of a mixture that is too lean.

2. Variator setup: To make the most of the exhaust's potential, you will need lighter variator weights than the factory ones. A sport exhaust "shifts" the power band to higher revs, so lighter weights let the engine reach those revs faster.

3. Clutch springs: If you feel the scooter "slips" at first when pulling away or the revs build sluggishly, we recommend fitting slightly stiffer clutch springs.