Hks Sqv.

[Sigma]

Anyone know what the bolt on the back of the unit is for?

Looks like some kind of adjustment.

If so, could you explain this.

Thanks in advance, rep for all replies.

 

[liamgtturbo]

it adjusts the piston in and out according to the noise altho its no use doesnt do anythin anyway lol

 

[Sigma]

Anyone?

 

[Aidan@EP-styling]

The adjustable bolt?

It adjusts the spring so you can set it to only dump out at higher boost levels if you know what I mean.

 

[Sigma]

OKay...

I presume that fully in is the tightest spring setting?