..both you guys are correct..tuning my 08 a50 to hit 50+ was a breeze..
..i've had a very difficult time with this 09 engine..it's just not the same...
..i even had comments on my youtube page claiming itsa fake!..lol..
..like streido says..change one thing at a time..
..frequent oil changes and valve adjustments and tire pressure checks..cant put a value on comprehensive preventive maintenance..
..another thing to remember is that changing things like a belt, or clutch/springs will require a "break-in" period, where you might still have to do some tweaking..
..i meant to post this pic here earlier...
..50 mph?..oh yes it can be done...with my 08 i was striving for 60...got there too! for a brief period, then backed it off a bit...