Markusparkus
.020 Over
Hi Captain Jack, I am in process of similar mods as your self, I have tors fitted with cat bypass and am about to fit gipro, tell me did you bother to remove the secondaries as well? I know other guys on here say to do it but just wondered if it was necessary with gipro. I say this because I have removed secondaries prior to gipro and found engine is reluctant to tick over so thinking to maybe put them back in! I dont have tune ECU yet but will install it soon.