Stock system, 3 versions.
pre 06 UK
pre 06 JDM - quieter than the stock UK box
post 06
aftermarket exhausts in lower budget range:
stock sound:
scorpion
japspeed K2
Loud sound:
Japspeed K1
Aftermarket exhausts in Medium budget range
Quieter:
Tanabe
Milltek
Louder:
GReddy Ti-C Single
2zigen Pro-Racer A-Spec
Aftermarket exhausts in Upper budget range
Quieter:
Nismo
Invidia G300 true dual
Louder:
Blitz Nur Spec
I have had PIAA wipers on on for the last 2 years, I would say that over the last 8-10 months they have got much worse. Lucky its not really been raining much recently
I will be going for the Aero ones I think, nearly half the price of PIAA