eskimo- wrote:

hey guys,
just wondering, is it possible to have 2 bov on the 3rd gen b4? if so is it even worth it? and hows the sound? lol sorry if this is a supid question.

kind regards,

Is it possible?  - Anything is possible so the answer would be yes,
Is it worth it? - NO, see "Modding No - No's" this falls under the "tool section"
Stupid question? - NO, your is a good question, lots of other stupid ones out there though..

tangcla wrote:

There are no such thing as stupid questions... only inquisitive idiots
hehe sorry, couldn't resist

and there's always schmucks that couldn't resist.

I have seen a Gen2 GT TT with two GFB BOVs. I don't know what's involved in putting in the second one, as it has a special role in the transitioning from the primary to the secondary turbo.

It's best not to fiddle with the second one unless there are issues.

BOV's are over-rated.. I'll be the first to say it..

they are great for attention.. that is all..

when you start to look at T04's with external gates and stuff, then maybe you might need a BOV... even then... the chop sounds so much better through a cooler with no BOV at all!

id u dont like BOVs, dont get an atmo one.


BOVs perform an important task and are not just a ricey shiney dick on ur car, xxb4xx. do you really think that automotive companies spend millions developing these products just for the hell of it. BOVs do prolong turbo life, due to reducing compressor surge, hence the shaft will not flog out as qiuickly.

leaking  BOVs can cause lower performance, richer mixtures and the assosiated effects.

they run 2 as std. the one one the secondary effets the spoolup (vod) of the changeover. i blocked mine to see what it did and on a dyno it even lost power somehow.

if it aint broke, dont f** with it.
but do what you want to the primary bov, its only there for response on gearchange.