I have a 05 287hp engine. Only other mods i have are the crank pulley, intake, exhaust, TPs.

At that time the car was a little sluggish to get up to the higher rpms but still better than stock. I did loose some low end torque but only to gain more high end power. Anyways after a while i got bored, felt like my car should be more peppy at the lower rpms and thats when i decided to go with the mrev2 and spacer.

After install and a half of day of driving i finally felt the difference. Once the ECU got used to the new mod it was almost like a night and day difference. I got back all my low end torque and more. The gains can be felt all through the powerband. In fact it made my engine spin so smoothly it feels like it was to go way past stock redline. After 4k you feel this suddent push and it doesnt stop till around 6k and then you can feel the torque dying off but the engine still spins so smooth. Before the mrev2 and spacer install i used to shift at 2.7-3 rpm on daily driving for a decent power and cruise around city in 4th gear around 2.5-3k incase i need to pick up speed to pass cars and what not. Now i can shift at 2-2.5 rpm with more ummph feel to it. And i know about you guys, I drive so much that its natural for me to just know when its right for me to shift during daily driving and like i said before it would be around 2.5-2.7k. Now if i dont look a the tach im shifting at 3-3.2k. Just a little indication how much smoother/faster it made my engine go. Thats my little rant. Great mod!

Im planning on giving it a dyno and a tune in the upcoming weeks.

 

Nice, Tony at Motordyne is making some good stuff. Did you get the Iso-Thermal or Copper parts?

 

So since you installed both (spacer and mrev2) and with all of your mods, you might be running a little lean. It might be time to get a tune to really get the juice out of all your mods.

 

Hmm yes, Id be wondering where your a/f is at. Get that thing on the dyno!
I love my spacer! G maybe Ill get an Mrev after all this stuff I have now goes on? Yea Tony is a great guy, though swamped sometimes. Picked my spacer up from him when on the way out here.

 

i'd be interested to see your dyno as i am installing just the mrev 2 this weekend and was thinking about the spacer

 

how much is the mrev2 now (do they still take core exchanges)?

 

yea they still take core exchanges, $446 and get i think 222 when you return your core

 

i just have the basic 5/16" spacer. i believe the refund is $122

 

i guess i will find out soon, or maybe someone who has sent there core back can comment on this

 

refund is 122 for those who did not buy them on the Initial Release of the MREV2. Those that bought the first batch should be getting 222. I spoke to MD Representative about this.

 

Yup, my core is still sitting the garage. been too lazy to package it up and send it back.

 

yea, wish i would have got it when it first came out, was $200 cheaper, lower intial price and higher core refund

 

i just found out if you ordered before june 10th the core is 222 after that it is 122

 

I was one of the first people to get the MREV2 and I love it. I didn't feel too much of a difference power wise but it's definitely there. Too bad I never got a base dyno before I began modding..