I have been told that the above dumpvalve can come with three springs. I am looking for more of a chaattter sound rather than a whoooosshh.

Which spring would you say is best?

 

RB5, the triple-fin inserts will make different noises and are available in silver, gold and purple (gold and purple are optional).

Standard silver triple-fin: produces a powerful aggressive blow-off sound
Gold triple-fin: standard high frequency sound
Purple triple-fin: lower frequency sound than both the standard and gold inserts

The SSQV inserts are easily interchangeable.

 

where can you get them from?
HKS Dealer direct? (Sumo Power etc.. ?)

 

Cheers Simon, wasn't that i didn'y believe your email, just trying to find out who prefers what.

 

Buying from stiracing.com

 

it's ok, it's just that I mixed the features of the gold and purple fins in my email so I thought I'd correct myself on here...