what kind of motordyne spacer do I need for 05 auto
 

what about motordyne
which one
ISO THERMAL PLENUM SPACER:confused:
can you feel the gains

You'll need a 1/2" plenum spacer and (for the best result get the) ISO thermal kit. The install takes about 1-2hrs using basic tools.. as for feeling the gains.. it depends.. if you drive like a normal sane person.. then probably not.. the only thing you'll notice is that the car is louder lol..

but yeah there is a 9-15whp gain (Dynapack proven) so you'll be the judge.. but the dyno and 1/4 mile will show you the gain

what exactly does it do? like technically speaking

https://g35driver.com/forums/intake-exhaust/95091-what-mrev.html

allows your engine to breath easyer at high RPMs

cool thx
but from what I understood, this only helps out the MT ones

no thats mrev.. mrev is designed for 05-06 6-speeds

the 1/2" spacer will work with ALL automatics and 03-04 6-speeds

ah ok
so any downsides or side effects to adding this to a 05AT?

I have an 05 Auto - 1/2" with ISO thermal Rocks - MREV+ also rocked the car - call and talk to Tony about it - I just did my MREV+ on my Auto - Tony knows the details.

No downside - install on the spacer is about an hour.

Rick

you loose your engien cover

This downside actually helps to keep the intake cooler by not holding in the heat as well....kinda funny...

which one iso thermal
or mrev plus for auto:confused:

get the 1/2" spacer with the iso thermal

I would only do the 1/2" with ISO Thermal for Spacer - MREV+ will give you some additional gains....I have extreme mods - and until there are stock dyno's out - I would hold off on MREV+....

Rick

I just put on the 5/16 spacer, ztube & popcharger on my 05 auto two days ago. I wanted to keep the cover (didn't think losing it was worth 1 to 2 horsepower with the 1/2inch).
The sound, with all three items, is really nice at higher rpms. It's not like your going to smoke the tires now but I'd do it again.

stock dynos? mrev has been dynoed back and fourth countless of times by myself and motordyne as well as other members