now are you talking about peak hp it didnt make a difference????? how about the torque numbers or the mid range numbers like the users said. I also plan to get he mrev eventually but was thinking of just doing the spacer first.

 

Yeah something isn't making sense here because the difference with the spacer was not HUGE but it was no questions asked a power gain. The sound was different and the torque from 3K+ was noticeable. My brother took the car for a spin last night and he said the same thing that it was amazing such a small mod could make such a difference.

MREV2 is coming next so I'm looking forward to that!

Any if I used the isothermal 5/16" spacer will I have to worry about changing anything?

 

It made no difference on the dyno. I posted the results a while back. It should be available with a search.

If you can only do one or the other, start with the MREV2 first.
It will make really good gains. In fact, it will still make a minimum of 15HP and 18TQ in the upper midrange.

Adding the spacer at a later date will add additional top end performance.

There was a recent independant dyno test performed by one of the board members at MRC motorsports.

It was a comparison of Stock Vs MREV2 Vs MREV2/spacer.
http://motordyneengineering.com/imag...page_large.jpg

Stock with a spacer, will be the same as stock.

 

dyno's to prove the difference?

 

No. It's fully reusable.