Im weighing up my options at the moment and need some help/advice. I currently have the spoon 4-2 and 2-1 with a BuddyClup pro spec. Also im running the AEM CAI which is being changed for the Gruppe M as soon as it arrives, so thats that side of it sorted. Im now looking to upgrade my exhaust system. Im looking at the J's 70RR, amuse titan R1 or the T1R 70R when its released. As far as manifolds go im looking at the Maxim works if the gains are worth it, if not ill just stick with the spoon set up. My quesion is which gives the best gains? Thoughts?