Hey guys,

How many of you get have the 5/16 spacer on your A/T and did it make a big difference throughout the entire powerband, or could you only feel it at like 5K RPM's and up. I have an 06 A/T and it has the 287 HP engine, should i get the regular spacer with iso thermal or the MREV. Please provide some info only if you have the A/T .

Thanks

 

Installed mine a couple months back. First thing I felt was better response and harder pull through out. Also, the exhaust sound got a little deeper than it already was. I love it!!

 

You dont want the MREV, your 287HP lower collector is the MREV!

For optimal gains you want the 5/16 iso thermal spacer, and the MREV++.

The MREV++ is a machined 287 lower collector.

 

Just ordered my 5/16 basic spacer last night for my Auto Z. I already have a KNN short ram intake and the Helix Cat back exhaust. Hope this improves my cars performance.

 

Hey, I want to buy one, but although you can feel the difference, can you prove the difference, like dyno or something?

HP gains!!

OE

 

I have one with the iso thermal upgrade. The plenum doesnt get nearly as hot as it did before. As far as feeling a difference, I already had an Injen SES exhaust, popcharger, and 3.5 final drive, so I really didnt feel anything on the butt dyno.

 

So MREV ++ is the only other upgrade i can do to it? How much did you guys pay to install or is it a DIY job within an hour or so?

Thanks guys,
Ted

 

The spacer is a very very easy install. Just be sure not to overtighten the bolts. Use in/lbs ONLY! Or reduce the ft/lbs for example, 7.5 ft/lbs instead of 90 in/lbs. Gains are noticed! The directions included with the kit are very thorough and straight forward.

 

Thanks GMZ. Seems easy enough, i'll give it a try myself.

Ted

 

I installed the 5/16 spacer today on my 2005 automatic Z. Have to say it was pretty easy install but I was still kinda scared breaking apart the engine.

When I was finished installing their was two empty screw holes on top of the upper phelum near the back. I couldnt remember if they were there before I started the install. I just think that they had to be there. Does anyone know if they were there before I started the install or did I forget something? I will post a pick in a couple of minutes

 

Does this help?

 

Nope. Nothing goes there.

 

Installed mine couple months ago on 03 g coupe.Feel it breathing better sounds great at wot with my injen intake.Maybe few hp extra but have'nt dynoed.

 

had it and sold it. Feel just a bit more. It was on my ZR 05 AT.

 

About that pic: You can use those spots to install grounding kit wires. At least that's what I did, without any problems.

 

so would you guys say that the gains are worth paying $250 for? is it really 10hp or less than that?

 

Yeah. Thanks guys, just like in the pic above. Its funny how I never noticed those two holes before.

 

Okay Had the Spacer on for Two days. Still not sure about the power increase. Two things that I did notice

1. The Sound/Growl got louder. I have the Helix up to the Y-pipe. Quiet until I hit the pedal

2. I think the engine runs hotter underneath the hood. Can anyone tell me if this is infact true? I havent noticed my temp guage go up to much.

Thanks