You can upgrade your ECU with a remap which may compromise your warranty, or you can add a power module (The NM is very popular with forum members.) and it will give you a 30 HP bump. The PRO Exhaust will give you an additional 2 HP bump. Both combined should give you 270 HP + or- at the wheel.Still waiting for my jcw to be delivered, and thinking of installing this upgrade..
So, apart from the complete exhaust, does it include ECU update?
What is the official hp increase with this option?
Ok, now the question is,
Is it really neccesary? I mean, apart from the noise and the possibility to play with the openning valve, do you notice any improvement in engine response?
Oops I miss read at first that you specified it was installing on a JCW my apologiesIf you're installing on a JCW it's only an exhaust upgrade.