I have been looking for a decent HP gain and was wondering if the best bang for the buck a plenum spacer? Also, is there a domino effect where I will need to upgrade something else because I did the Plenum. I am under the assumption that the 5/8 motordyne is the way to go cause I can still use my stock engine cover... ???

 

good question, can i get a 5/16th spacer and still use the engine cover

 

Yes, the spacer is one of the best "bang for the buck" mods for our cars Yes, you can use the engine cover with the MD 5/16" plenum spacer, but you might run into some trouble with the 1/2" spacer. No, if you get the spacer, you don't have to get anything else. Though you'll want to keep modding after the spacer.

 

Yes.

 

Spacer and test pipes.

 

IMO to get the most out of your mods you will need to re-tune the car. All the bolt ons + a tune will yield you the best results IMO...which BTW will not be that great anyways. But to answer your question plenum spacer and the MREV2 is the best bang for your buck.

 

tune alone w/give you better gains than any one or two mods

 

motordyne 5/16 spacer FTW

 

5/16 is better than the 1/2? and which copper or plenum

 

The engine cover and a strut bat like the GT Spec will fit with the 5/16".

 

They're different, not better or worse. 5/16ths will give you a better overall power curve while the 1/2 will give you more top end power at the expense of low end torque. Decide what you're going to use it for first. The majority of people get the 5/16ths. As for the Copper add-on, you really only need it if you live in a cold weather climate.

And yes, a plenum spacer is by far the best bang for your buck. Nothing else is really close.

 

5/16 spacer and test pipes FTW

 

Thank you

 

You will also need an MREV2 if your car is 05+ and 6MT. If not, get the spacer and enjoy!

 

His sig says he has a 2003.5.