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http://cgi.ebay.com.au/R32-R33-R34-RB25DET...1QQcmdZViewItem

Hey guys, Ive done a bit of searching through different forums including this one and cant really find any info on these plenums. They appear to be good quality, have velocity stacks inside the chamber and are nowhere as cheap as greddy copies!

Just wondering if anyone has used one of these on their rb25, wat the quality is like, performance, etc. Currently deciding whether or not to buy a genuine greddy plenum or one of these as i can purchase with a 90mm throttle body for 1g. Thanks for any input you can provide!

this was covered on the greddy copy thread they are not as good as they look id go ahead with the greddy for that tiny bit extra i have a greddy copy and it is good but i suggest you not go for one of these

they dont look anywhere near as bad as the greddy style ones, ive been contemplating..

if u look at the rb20 ones u will see its the plenum with standard runners welded on, suppose u have to remember the postage is another $175 on top.

Edited by silver gts-t

pretty sure those JUN copies are made in Thailand or Taiwan... cant remember...

Greenline sell the genuine Greddy ones for $885 so just go with that. Atleast its a proven Japanese brand and you will be supporting the company who has ACTUALLY come up with the design and done the research and development...

they dont look anywhere near as bad as the greddy style ones, ive been contemplating..

if u look at the rb20 ones u will see its the plenum with standard runners welded on, suppose u have to remember the postage is another $175 on top.

I concure....looks better than the greddy knock off.

But then again..they could show you a Jun one and give you one of theirs..... >_<

I had one of these jun copies installed on my rb20det. It looked to me like the standard runners had been welded on... it was a very good plenum and even used velocity stacks.

but for a couple of hundred or so extra, would be good to go a genuine greddy...

There's another jun copy thats a larger version.

I've seen the larger rb20det jun copy plenum. Its quality was actually pretty damn good. Velocity stacks inside, welding was clean; no noticable seat of the pants loss of down low but a hell of a lot more up top.

It wasn't a 'bolt on' and required a few mods to get it all working.

Also.. $700 is a bit rich. They can be had for $400ish.

  • 1 month later...
pretty sure those JUN copies are made in Thailand or Taiwan... cant remember...

Greenline sell the genuine Greddy ones for $885 so just go with that. Atleast its a proven Japanese brand and you will be supporting the company who has ACTUALLY come up with the design and done the research and development...

yeah, look at JET200 (ignition DVD project car) it had a millenium motorsports custom plenum on it, replaced it with a GREDDY one and bang .... more power everywhere low, mid and top..... there is a lot more to plenums than just a pretty weld job....

  • 3 weeks later...

I received my plenum (with 80mm throttle body) about a week ago, it definitely looks the part, and the workmanship is top-notch.

I'm fitting it to the car in two weeks time, so I will let you know how it goes.

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