I had my 54 plate zed uprev done at rs tuning, they told me it dosent get rid of any restrictions in 1 2 or 3. The zed feels a lot better and a lot smoother.. heres mt results
If I want more power the only real way is forced induction. But I dont think it need it, now im going to sort out the handling.
My mods are. Berk hfc, invidia gemini duel exhaust, plenum spacer, 2006 airbox mod, pannel filter,