I have a 04 G35 coupe. The car came with a z-tube im looking to invest in another mod. I'm thinking about purchasing a plenium. Would this be a good mod considering my cars almost bone stock? Is a plenium safe on stock cars?

 

Yes and yes

 

Can you trully feel the whp gain? Kinetix says thier plenium increases about 15wrph?

 

You should.

You should really read up on these spacers/plenums first. "Motordyne" would be a good 1st search.

https://g35driver.com/forums/search....archid=3386391

Then go to their site and read the dyno sheets

 

how about a popcharger, they sell them at www.everythingg35.com

awesome sound.

 

Do you suggest i get a plenum?

 

If you have an '04, just get a spacer.

 

yes a PLENUM mod is a great upgrade...PLENUM mods are great $ to hp upgrade for our cars...

 

a new plenum or plenum spacer is a perfect starter mod. combined with your z-tube it will be great. look into a motordyne spacer...one of the best bang for your buck

also get either a stillen airbox, jwt popcharger, or K&N filter to really open up your breather mods. it will sound great.

 

IMO, if you get an intake, keep the box. Go with a Stillen intake.

 

Yes, a plenum is a GREAT first mod and you will feel the gains. I have a plenum for sale right now that is right up your alley . Here is my for sale thread, let me know if you are ready for more power :

https://g35driver.com/forums/archived-sales/174846-fs-crawford-v5-cast-plenum.html

 

If you have a 6spd I would do both the plenum and spacer.

If you have an auto i would just do the spacer. Use the 5/16 spacer and you can put the engine cover back on, if you want to keep the stock look.

 

Since you have an 04, don't waste your money on a MREV2. Minimal gains will be had. Just get a spacer and with the money you save by not getting the MREV2 buy yourself an intake. Ask about which intake and you'll start a war. Search and read my friend because it all boils down to what YOU like. Don't let anyone change your mind. Good luck with the mod bug, she bites hard!!!!

 

What intake should I get? Will underdrive pulleys help me get more power? What about the turbinator?

 

Are you saying the MREV lower plenum, or an upper plenum?