The Yaris Performance Primer

[dnys]

Hi, I have a 2007 M/T yaris, the mod that have been done for now is just Open air filter, grounding wire, and iridium spark plugs..

I'm thinking to install a quick shifter for the next step but the underdrive pulley from NST always stuck in my mind..

can please anybody tell me which one worth more?

[bazb]

Originally Posted by dnys

Hi, I have a 2007 M/T yaris, the mod that have been done for now is just Open air filter, grounding wire, and iridium spark plugs..

I'm thinking to install a quick shifter for the next step but the underdrive pulley from NST always stuck in my mind..

can please anybody tell me which one worth more?

I'd say, go for the quickshifter first. I haven't tried both, but from what I've read the pulleys only make a slight difference in responsiveness, and the short shift kit a huge diff in shifting.

How did the grounding wire and sparkplugs improve your ride?

[dnys]

is it possible to use 4 age cyl head on 1NZ-FE?