would it be a good or bad thing to combine this, i read the 5/16 is usually used to not lose power in mid. everythingg35 said if i were to use 1/2" it would lose mid-range and only gain power for 6000+rpms. So i figure since 3/8 is in the middle i might be able to use it.....any info.? i've been reading all day on this stuff and have found everyone of my answers except this. thanks

1 more thing: will the stock engine cover fit with the 3/8"? its only 1/16" bigger than the 5/16" so.......

 

Well speaking for the RevUp engines ('05+ 6MT's) with regard to the MREV, the said is optimized with the 5/16" spacer. This is per the testing data, as performed by Tony at Motordyne. Someone please correct me if I am in error.

 

You are absolutely correct, I have the same thing, 5/16, Mrev+, CCV!!! It's FAWKING GREAT!!

 

ok so 5/16" it is then because i have an 05 coupe 6mt.
now i dont know wether to choose kinetix MD or another brand which works best?

 

I only have experienced the Motordyne product and am very pleased with it, to say the least. The quality of the Motordyne spacer unit is excellent. I am sure there are other spacers out on the market of equal quality. However, for my dollar, it's Motordyne.

 

everyone here will recommend Motordyne. stay away from Skunk2 is pretty much the agreed on consensus and just go with motordyne. We haven't heard anything negative from them...so you cant go wrong