I've seen a lot of lofty HP claims here. I thought this would be a good place to post the proof.

I just finshed installing a stage 2 head on my 04 MCS. I ran it on a Dynojet before and after. (File 1&2 before, 3&4 after)

218 RWHP
179 RWTQ

 

As long as we're doing this, please list exactly which performance mods you have had done, (% pulley, which intake, exhaust, ECU, etc.). Thanks!

 

Would you be so kind as to provide the basic info of the head you installed, like who you purchased it from and any specs on it?

Nice numbers! You need a tune!!!

 

We already have a thread on this exact topic:
https://www.northamericanmotoring.co...ight=dyno+post
Why now 2?

 

My bad, I will post there. Please excuse my ignorance.

 

LOL

Maybe the moderators can do a merge...

 

hope so