Hi all I’ve recently bought a 2011 Astra j 2.0 cdti sri and I would like some help please. I want to improve performance and power and was wondering where a can get performance parts or even if I actually need to get performance parts such as turbocharger, air filter, radiator, inter cooler, fuel injectors, coil overs and any other parts I may need. I know about remapping and tuning box’s which I think I’m going for a remap. I’m kind of new to this stuff so any help would be much appreciated. Th