currently have the red standard spring ithe dv i have got the blue spring as well is this one meant to be noisier? is it much of a job to change over ? any thing i should watch out for ?
cheers Darren

 

Ive got the blue spring fitted to my MY02 & dumps at the right time with the right sound. I've heard from some people that the red spring is tougher, which means it will not dump at all times unless you rev it hard. However, i have found that now & again with the blue spring that you dont get a dump, which means pressure is being built up. Which is why im going for a HKS soon.

Seems to be a straight forward swop with an allen key to me.