From experience with my 370 and 350z,do not expect much from the intakes in the way of real gains. Never could figure out the change to intakes that have the filters within
the front bumper(need to remove same to change/clean). IMO,the biggest bang for the buck is HFC's. I have ones from Z1 on my 350. They work great. Expect your exhaust
to be louder after install of HFC's.
Never had any rasp.
A proper tune after you do your mods(intake,HFC,manifold)is needed.
Z1 did my 350 with AT. Set up the trans to more crisp shifts.
Take care who does the tune as all the guys at Z1 do not have the same level of
expertise. John is the best.
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