MeAn63

I purchased a 2012 C63 P31 with LSD about a month ago and I’m new to this forum. I’d really appreciate some input as to what direction I should going with my mods. Currently I have ROW Airboxes with K&N filters and deleted secondary cats and resonator which is replaced with individual straight pipes (done by previous owner). Now I’m planning to buy the Eurocharged tune. I’m thinking either buying the VRP Flex Fuel kit (I’ll be running stick injectors) or the MBH OEM xpipe. They are both about $600. I don’t plan on buying long tube headers because, honestly, they’re just too expensive. I’m hoping to get someone’s experience to see which would be the best “bang for my buck”. Thank you everyone in advance and I appreciate the help.

curt.r

Sent you a PM.

hachiroku

if you have any interest in a dedicated HPTuners tune let me know.

btw stock injectors will not work for any fueling past e50 (50% ethanol). they will be maxed out on duty cycle.

VictoryRoadPerformance

Although you said you dont want to do longtube headers I highly reccomend them. They are the best upgrade for your vehicle.

If you would like we do have short headers for your car instead. Shoot us a PM I can send you a code for a set of longtubes. Also i would reccomend replacing the injectors when you do the flex fuel kit. But for now, I would start with

VR7 Tune
Row inserts
airbox Spacers
Air filters.

sventastic82

Yes, don't forget the magical air box spacers!

C55_AZ

Don't waste your money on a brand name x pipe. Same thing you can get done at any exhaust shop for $100. I would go flex fuel, injectors, tune and call it good unless you want LT's

INS1GNIA

You seem pretty set to me how it is, I really wouldn't do much more. Do you know if the car already has a tune on it? From the previous mods done to the car, I want to say that it might already have one.

Doesn't have to be about power either, you can always dress up the aesthetics. Add some carbon pieces, a front lip, spoiler, rear diffuser, some interior pieces.

MeAn63

I appreciate the input. Honestly, I don’t know if the car already has a tune. I bought the car from a private dealership. I spoke to a local Eurocharged dealer and they said the only way to find out if the car has a tune is to run the ECU. They’re charging $200 to do that. VRP has a sale on the Eurocharged tune and handheld for $900. I just bought it yesterday.

qmciver

Why don’t you schedule to get the car ran on a dyno to see what it’s making at the wheels first? Once you have a baseline you can go from there and see about a tune, you might be satisfied with it after that. Unless your trying to drag race Hellcats.

MeAn63

The closest Dyno place is charging $220 per hour and that’s the minimum. I guess I don’t wanna take the chance of having to pay extra to find out. Best case scenario I save $700, but worse case scenario I end up paying $1,100. Since VRP is having a sale on the Eurocharged tune and handheld I figured I’d have the option of going back to stock, just in case I need it.

qmciver

definitely a good mod combined with ROW boxes and BMC filters. My C63 is tuned by Eurocharged and I’m running their v7. Making about 458whp similar torque numbers. Car will easily go 200 mph. Don’t ask me how I know.

MeAn63

I should be getting the tune in the next couple of days. I do plan on running the car on the dyno. I am really curious to see what my car puts down. So you have the ROW boxes, filters, and V7, right? Anything done to the exhaust?

MeAn63

Is there a size difference between the ROW boxes and US boxes? Or is it just the charcoal filters, plastic lattices, and restrictive velocity stacks?

Mort

The ROW and US boxes are the same dimensions. The differences are internal as you noted, to install the carbon filters for the NA market.

qmciver

Yes I have ROW Airboxes, BMC filters, Eurocharge V7 tune, I requested the back fire on downshifts and 7,500 Redline. I also upgraded to Racing Brake Brand lightweight 2-piece rotors front and rear. My secondary cats are removed.

MeAn63

What’s the benefit to a 7500 rpm redline?

qmciver

So it’s been a while since I installed that tune on that car. Haha I kinda forgot why I had Jerry @ eurocharge do my custom tune that way. But there are threads on here that take deep dives into the V6 and V7 Eurocharge tunes in great detail.
For one the noise is amazing, I love cars that rev extremely high, if I recollect there is some power to be extracted from the extra 200-300 rpm.

csandbothe

Can you link where you saw the sale for $900? I'm looking to tune mine as well.

MeAn63

They informed me the sale ended yesterday.

MeAn63

Actually, go to VRPSPEED.com