Originally Posted by
kyle_st200
As I understood it they also have a sports car as standard too. When I had my 170 and looked into it I got told a decat will make virtually no difference. I'd just go cat back for noise and looks personally. If you want a power increase get a vernier pulley
It doesnt have a 4-2-1 manifold as standard or a sports cat either.I might not no much bout cars but I definitely no that the st170 did not come with them fitted.If u dont no what ur talking bout u shouldn't be trying to advise people on things u no nothing about.