Motordyne 5/16 Copper Isothermal Plenum Spacer

The G-Series Tuning Forum is the place to discuss G35/G37 performance modifications and mechanical repair.
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LarryBM
Posts: 12
Joined: Mon Jan 31, 2011 9:22 am
Car: 2003 Infinti G35 Coupe

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Looking for some help guys. Will the Motordyne 5/16 Copper Isothermal Plenum Spacer work on the 03 G35 AT? I've heard mixed reviews because it's an auto trans. Just want to make sure before I drop the cash money. Thanks


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biggie
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Car: '16 Q70L/'14 Q60S Vert/'19 Armada/'09 FX35
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Yes will work and will improve it.

joe603
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Joined: Mon Nov 21, 2005 5:45 am
Car: 2014 Durango R/T
Location: Atlanta

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The spacer will work, but don't get the MREV2 lower plenum...that is meant for 05+ REVUP engines.

tollboothwilley
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The spacer works great.

MREV2 is the same lower plenum that you have - just has work done to it. It does net you some HP but nothing like the Spacer.

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LarryBM
Posts: 12
Joined: Mon Jan 31, 2011 9:22 am
Car: 2003 Infinti G35 Coupe

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Ok thanks guys. I found it on amazon for 264.95. I'll let you know how things work out. Appreciate the help!

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kmckis1029
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Joined: Wed Aug 13, 2008 8:45 am
Car: 2016 Q50 RS400 AWD

2010 G37x w/Prem, Nav, & Wood (sold)

2005 G35x w/Prem C (traded in)
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i think the direct website sells it cheaper...

and yes the spacer opened up my G35x, if i was to go back this would be the first mod i did to my g35x.

if you installing your self, please make sure you have a torque wrench and time on your hands. cause its like 18 screws and a specific torquing patteren. dont want no leaks...


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