C63 Coupe Edition 507 Long Tube Header Install












That being said, the car dyno'd at 443.2 hp RWHP being the highest, done at Eurocharged in Toronto. It was a slightly cool day.
Thoughts/ideas to why those numbers? I'm sure I've seen a post or 2 about the 507 with the V5 tune making just about those numbers....
The main thing is what you gained. Did you run a baseline run so you can see the improvement? Headers and cat delete should get you 20-25rwhp and a tune another 25-30rwhp.
That'd put your 507 pretty low for a baseline number (under 400rwhp). Most will make more than that stock.




The Best of Mercedes & AMG
So your fuel is about spot on. What octane? There may be more timing in it, but that is fuel dependant
Ported heads will gain you 8-12rwhp, this has been proven, with 70% or more of the gains coming from the valvejob. The factory heads are that good.
There are plenty of bolt-on C63s rocking 500rwhp without going into the motor. No offense but i find your posts to be quite misleading as to what's actually been proven to work vs your theories.
You guys bring hollywood into everything even car tuning and dyno readings lol.
Bazman is close to real figures.
Whatever mine would read on a US dyno, I must run mine down the strip. I know it pulls in my buddies Gallardo 560, it pulls on stock GTR's, hell even a 660hp GTR wasn't getting away from me, but closed roads come down to ***** a bit. A fairer comparison is against the latest 4L GT3 driven by a race driver - we were neck and neck out of tight turns through to 160kph when we had to back off - consistently. These C63's haul *** when modded right
My brother is currently seeing 430whp and his car eats anything on the street. The torque is monstrous. Makes me miss my C63.
I want to check out the new C63S aswell. Let me know how it goes. At 180 inclusive of options it's dirt cheap!
If the new M3 had an 8 under the bonnet i would've bought it. Looks so good.
But i'm looking around for another little toy, i'm just bored with the cars i have atm.
I want to check out the new C63S aswell. Let me know how it goes. At 180 inclusive of options it's dirt cheap!
If the new M3 had an 8 under the bonnet i would've bought it. Looks so good.
But i'm looking around for another little toy, i'm just bored with the cars i have atm.

Nice run home up the Coquihalla (3 and 4 lane open highway) to get used to it.
Hopefully all goes well !
Sounds so nice with the stock system, can't believe it opens up that much by just changing the headers!!
Curious to know what it sounds like.. Is it the MHP xpipe which is installed?






