hi all got a 2002 vrs how easy is it to fit a decat and downpipe and wat gains do i ecpect to gain cars been mapped and at mo is running 212 bhp

There easy to fit. Just 4 bolts on the turbo and 2 on the clamp on your middle section. Theres 2 lamda sensors to take out aswell and swap onto new downpipe. But make sure exhaust is stone cold before u try to take off. Maby leave an hour or 2 to make sure. Any heat around the lamdas will make them ring off if u try to remove them