Exhaust Butterfly Valve

[scathing]

EDIT: Duplicate post

Edited April 10, 2008 by scathing

[SECURITY]

these things are pretty damn good. there is someone in fairfield in sydney that supplies mufflers with an electronically controlled one. if i didnt have a titanium exhaust i would've had one installed straight away!

[5hu7o]

theres comapnys that make similar products but there abit expensive

Xforce Varex

video already on website

HKS EV-R

2:39 shows u how the hks Ev-r works

Edited April 10, 2008 by 5hu7o

[TommO]

Be aware these can also cause problems... the spring that opens/shuts wears down over time and doesn't work as well.

I've seen a number of people on here with this issue, i.e: http://www.skylinesaustralia.com/forums/R3...ost-t86026.html