CSC Is not needed but I forgot to put that. I recommend that too. As for headers it will make the system become more efficient. Usually after installing headers youll need a pulley because it will drop a few psi. With boost applications the faster you can get the air in then get it out the better. Most twin turbos will have a manifolds not headers. Theres a couple out there that use headers but the kits for the 370z mostly are manifolds. See on Na cars sometimes the headers arent good because a little bit of back pressure will yield a little more torque. All these mods change the dynamics in so many ways. Headers will be better for a supercharger setup then the oems.
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