A total waste of money. Did nothing for my mum's Camry.
Motoring enthusiasts should put their hard-earned $$$ where genuine HP gains reside. Below are still LTA legal and do not cost too much
So what is worth the $$$?
IMHO
1) ECU Upgrade or reprogramming only with established tuners specialising in the make of your car
2) Port & Polish
3) High Flow Exhaust System
4) CAI
5) High flow Air Filter K&N
6) Performance Fuel Pressure Regulator
7) Performance spark plugs (Iridium)

Performance Camshafts
9) Change stock steel flywheels to duralumin ones, much less rotating inertia+more power.