No. In 05 they released what is referred to as the Rev-Up motor on the 6mt models. They gave it a new plenum, however this is not what increased the hp of the motor. That came from a couple other factors, ie.- variable exhaust timing and higher redline, etc. The new plenum actually makes the MotorDyne spacers not really effective. So MD released their own lower plenum for those motors called the MREV and now the MREV2 which is a revised model. They are retooled non-revup lowers that they work their magic on. These plenums do add power to the Rev-Up style motors and work very well when combined with their spacers.

 

how do you know if you have a rev-up or not......i also have a 05 5at and was looking at the 5/16 spacer. so if i where to get this WITHOUT the mrev2 i would see NO gains?

 

None of the 5AT's have the REVUP engine. All you need is the spacer to see the gains.

For future reference, if you have a 6MT and have the REV light on your dashboard, you have a REVUP.

 

For the Revup engines, Motordyne 5/16 spacer alone won't do you much good. Instead, you should be getting the MREV2, this is the lower manifold product we have that will be beneficial to your performance.

Although 5/16 spacer alone wouldn't do too much on the revup engine, combined with MREV2, it'll still create additional 5-7 HP/TQ with the addition of the spacer on top of the MREV2.

Please kindly let me know if you have any questions.

Thanks!

James

 

what exactly is a spacer and what does it do?
sorry for noob question

 

Its a small piece of metal that goes in between the upper and lower plenum. It allows for better air flow to the forward cylinders.

 

I got a question does the Motordyne 5/16 spacer makes our car waste more gas or makes us get better MPG and Hp at the same time? Anyone kind enough to answer me thanks in advance.

 

Spacer = more air into the cylinders = more gas into the cylinders. And once you get the spacer, you'll be pushing your car harder to enjoy it.

 

Well in case i dont push it if i drive it normal will it burn more gas than being stock?Sorry for the noob question

 

If you drive slow or just normally, you really shouldn't notice much of a difference in mpg. But when you push it, the spacer allows more air into the engine, and to compensate for all the extra air, more gas is injected, thus giving you more power.

 

oh ok thank you i guess it will waste a lil more gas aw well no big deal if u having fun

 

Exactly . Our cars use up so much gas in stock form already, it's best not to think about it lol.

 

It's not TOO bad haha. I mean there's PLENTY of cars that have worse MPG out there so it's ok :P

 

what is the difference betwenen 5/16 and 1/2? ive seen a lot of members on here with the 5/16 over the 1/2 any reason for this?

 

^Basically, the 5/16" is more for low-mid rpm power, and the 1/2" is more for mid-high rpms. But the 1/2" makes a little more total power than the 5/16", and is a little louder. Since my daily commute is mostly city driving, I spend all my time in the low-mid rpms, that's why I have the 5/16" spacer.