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Apexi Dual N1 Cat Back Exhaust For R33 Gtr And Gts-t

Followers

May 3, 200719 yr

NEW LIMITED EDITION APEXI DUAL N1 CAT-BACK EXHAUST

- GENUINE APEXi JAPANESE ENGINEERED AND MAUNFACTURED

- Dual N1 System for added Torque

- Improved mid range

- Mild Steel piping to Stailess Steel Dual N1 Mufflers

- Aggressive angle design

- Direct bolt on application

Were $1650

$1100 on the shelf ready to deliver!! Only while stocks last!

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BM44 master cylinder

They do not sell them separately. What happened to yours? Keep in mind, the cost of a newer and large complete master like a BM57 for example is rather cheap.

By TurboTapin · 33 minutes ago33 min
RB25DET S1 block + NEO head – which oil restrictors?

Hi mate, do you know if a NEO cylinder head can be fitted to an S1 block when using NEO rods and pistons?

I’m asking because someone on Facebook told me that the NEO head won’t work on an S1 block due to the different oil feed to the VTC.

Have you come across this setup before, and do you know if there’s anything that needs to be modified in the oil feeds/restrictors?

Thanks!

By tomcio911 · 1 hour ago1 hr
RB25DET S1 block + NEO head – which oil restrictors?

People normally drill them out until there is very little wall thickness then hoick the rest out with a hook of some sort.
Yes, but.... it still will restrict the oil flow. You will have 2 restrictors in series. So even though the original one is bigger, it will still put up a resistance to flow, and then the added one will too. So you have to guess as to how much larger the added one needs to be to compensate for it, and that's all too hard, so, just pull it out.

By GTSBoy · 7 hours ago7 hr
RB25DET S1 block + NEO head – which oil restrictors?

Thanks for your answer, I really appreciate it.

One more question: do you know how to remove the factory oil restrictor from the S1 block? There doesn’t seem to be any access from the inside, only the small hole from the top.

And if it can’t be removed easily, would it be possible to drive the original restrictor deeper into the block when installing a smaller restrictor, so that the original one is no longer affecting the oil flow?

By tomcio911 · 7 hours ago7 hr
RB25DET S1 block + NEO head – which oil restrictors?

PRP have this slightly confusing image on their site

Perhaps the first important thing to consider is that an N1 pump is really nothing special. It's just a stock pump - nothing like as big as a proper oil pump. So, the size of the restrictor for N1 pump is not really any different than for a stocker. I mean - the N1 pump IS the stock pump for a Neo anyway.
So, for a Neo... the advice in that graphic is to block the rear one, use a ~1mm restrictor in the other one. And because the pump is not very large, probably go 1.1mm for that one.

By GTSBoy · 8 hours ago8 hr

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