Just got a Prodrive Backbox and a de-cat centre pipe today and will embark upon fitting soon. I assume I'll need a new back box gasket;
Impreza Turbo 2001-2005 New Age : Subaru Impreza Gasket and bot set

But what does the centre pipe connect to and is that the same gasket ?

Also, was thinking of adding a Green Filter as it seems they are good ? Anyone got any thoughts on that ?

This is all adding up to getting a remap I think, what else should I be doing in preparation for this, my big concern is what Privilage insurance are going to say! has anyone got any idea what insurance % increase a remap has ?

 

Hi mate the gasket you have listed is only for the back box, the one on the centre section is like a big doughnut of which you might be able to reuse! regarding the insurance I think it goes up about £100 -£150 same a Prodrive performance pack but im not 100% sure if you give Keith Michaels a ring he will be able to confirm, you will find there number in the insurance section