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In a word NO, done the job recently and I doubt you'd be able to get the rail off without taking the plenum off and by the time you tried to do it you'd have it all apart anyway. Hardest part is getting the 3 bottom bolts (on plenum) started when putting it back together, just need a bit of patience ! And I got away without having to replace the gasket, not recommended I know but you just need to be care when spliting it.

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On an R33gtst I did it without splitting the plenum. Wouldn't recommend it unless you have to. R34 may be dfferent though, since they have top feed injectors. Get a few more opinions or check it out for yourself.

I just split the plenum, so if you want to know some tricks have a look (thread near top now). You need a set of ratchet spanners

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