The Findanza RR has will in now way invoke idle issues but does rev faster. I had all stock junk in my even with the turbo. I just got the car back Wednesday after installing the Findanza flywheel and clutchmaster package sells and HOLEY s*** what a difference. the car revs like a bastard and the clutch definitly can now grab the power it could not before. Now if I am on the highway I can just down it to 4th and I am off like a bastard. Before the clutch would take a second or 2 to grip up right and it slipped a bit and the revs took to long to build. Now its great.
the only down side is when driving normal there is a little bit of shuter if i try to shift and the revs fall below 2000, but thats it. For the $500 I would do both upgrades.