AMGangster

Simple question. I have a little bit of money to throw at my car. What is everyone's thoughts on an LSD or Tune?

Even Money

Tune probably a little cheaper, no labor costs. I would go that route just so you're not running so rich a AFR, thereby keeping your motor cleaner.

I am Jeff

I went the LSD route first, then followed it up with a Tune.

MaroonC63

You'll definitely need the LSD if you're getting a tune. You'll spin out at 1/4 throttle with a tune and no lsd.

olszowa12

tune

Blown63

Both! Get a tune first so that when you get a LSD you can appreciate it and see the difference more.

MurphC63

Lsd for sure.

_timothy

came to post this. left satisfied

deeoh

Get a tune first, unless you're headed straight for the track. Then you'll need both.

shades

Tune all the way. Lsd if you plan on tracking the car. The biggest mod you can get and the cheapest too, unless you get a charger. Especially now, you can get the tune with the handheld at basically the same price as the tune alone

ghiaguy

Pretty even split here! I would say the tune just because POWWAARRRR!

gthal

LSD... otherwise you are wasting the potential of the tune because you can't get the power down. Power without control is useless IMO.

AMGangster

The only track it sees is Tire Rack's when in switching tires. Other than that I am a stoplight to stoplight kind of driver. I think I will start with the tune.

Merc63

Tune first then LSD. The LSD is really worth it if you drive aggressive on the street.

olszowa12

With all due respect, IMO 80% of C63 owners would not be able to tell whether the car has LSD or not if they were given a random C63 to test-drive.

Blown63

x2

I have to say I was a bit shocked to see alot of people pick LSD over a tune

VaclavSV

LSD first!

GrnLantern

In the end, you'll want both. Decide which one is easiest for you to do first, then do that. Tune will be relatively painless and easy. LSD will require 8 - 10 hours of installation labor (by someone who knows what they're doing).

Point2Point

I'd pick LSD. If the C63 has a dynamic fault, it's the inability to smoothly modulate the application of power on corner exit when close to the limit of adhesion. An open differential isn't such a big deal in cars with more modest torque output. My Cayman S didn't have a LSD, but it didn't have anywhere near the grunt as the C63. Why didn't MB equip the C63 with LSD as standard? I'm guessing that the marketing folks expected the majority of owners to not care about on-limit corner exit behavior, or even to lack awareness of the function of a LSD.

dragonAMG

easy... tune!

ChiCho55AMG

TUNE FROM EUROCHARGED CONTACT JERRY , THE BEST

fusionchicken

my C63 will see a tune before LSD hands down

i usually do my spirited straight line blasts on the freeway anyways, this car is too quick for local roads

BerBer63

i got +100rwhp over stock and no lsd...i dont think it matters at least not noticeably or significantly. Ideally I would;ve done both, just dont have any local shops.

loungn14

At our current end of the year pricing (with free reflashes for life if purchased before end of 2012) you will save a ton of $ and might be able to get both!

$999 with handheld programmer!!!

ChiCho55AMG

ALWAYS THE BEST FROM JERRY NOT ONLY IN QUALITY,IN DEALS TOO