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Originally Posted by cnatra
I think Nissan uses a MAF system.
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True statement cnatra.
While there is 'some' benefit to opening up the intake and exhaust, real gains are not made until the ECU is redone with new fuel maps etc. Us 300ZX guys have been playing with this setup for quite a few years now. Enclosed are a couple of pictures showing them. One is the 'outside' where it goes into the intake piping next to the Air Box and the other is an 'Inside' side down that pipe from inside the Filter area. Yes, our trucks are OBD compliant as well.
When it gets to really 'building up' things there are a lot of issues to look at to include injector size, porting, etc etc etc.
There are quite a few 300ZX and 350Z boards out there you can get some insight to 'what has been done in the past' with the Nissan setup to read. I am sure ttZ32 has been to a few of them as well
Chris