Free Boost: http://www.jull.co.uk/index.php?opt...-valve&catid=36:s14-s15-tech-guides&Itemid=70
The pipe in figure 2 is what you need to replace. This pipe has a restrictor in it. If you replace the pipe you will increase your boost to about 10psi instead of the factory set 8psi
The pipe in figure 2 is what you need to replace. This pipe has a restrictor in it. If you replace the pipe you will increase your boost to about 10psi instead of the factory set 8psi