Hey MadeInJapan, Wow..thats alot of modifications. To do all that for a Volvo here in Malaysia, its going to cost a year's salary haha. Anyway, mine is mostly factory parts. The only changes made so far is an open air filter concept and a boost controller. (with boost gauge of course). Other than th...

Setbacks as in the side effects of it. But you've basically answered it thanks!

Yea the open filter was manually fabricated. So far the car runs well. Better performance as well.

Mind I ask what have you done to your car? and which model is yours?

I see...

Well...seeming that modding Volvo's locally is kinda expensive.

I'm now experimenting an open filter system. Changed the box filter to a cone filter. What are the setbacks for that?

Thanks for replying

I see...alright i'm new to this.

stage-0 would mean what mods?

I have installed the manual turbo booster for my 850 T5 Turbo.

Currently it is standing at .7 bar. I'm planning to push it to 1.0 bar. Anyone knows the maximum boost a standard 850 T5 engine and standard gearbox can endure? Wouldnt want to break the engine and the gearbox

Someone PLEASE advise.