Vy roller rockers and tune!

[Brodie12]

Hey guys, 2002 vy series 1 s pac 5 speed manual.

Engine is completely standard at the moment was looking into getting 1.9:1 high ratio roller rockers but can't decide between mace or yella terra or street terra?
are there any problems that may occur with the car after installation and does anyone know the price of installation?

Also will a tune be require after installation? and will it be beneficial to put an exhaust system on after roller rockers? thanks!

[hN!]

I have the mace 1.9.1 here and they are great no problems I did the job myself so i'm not sure how much a mechanic would charge it doesn't take long 2 hours MAX. No tune is required I would also suggest a full exhaust as these are a good combo

[Brodie12]

Did you need a special tool to hold the valves up whilst changing rockers?

[unregistered]

the springs hold the valves up. You do not remove the springs unless you are upgrading them.