Renntech LSD or Quaife or OEM?
 

Not sure if Quaife even make on for the new cls63 but I do see renntech has one for 3k plus. Need opinion of which way to go. Thanks!

If you haven't ordered your car yet then definitely go with the OEM LSD

Already have the car.

In that case I'd definitely go the Renntech route. I think getting a complete LSD from Mercedes would be cost prohibitive.

The OEM LSD is 2030 dollars msrp on the window sticker---- cant believe the part would be any more.

Install would be the same as any OEM IMHO: labor, seals, fluids...

I think th OEM is only 30% locking. I would go Renntech

That's what I was thinking, shouldn't cost more than 2k for OEM LSD. As 7 speed said, the OEM IS 30%? Renntech's spec says 100% locking.

Keep in mind that $2030 is the upgrade cost for the basic differential that's already given with the price of the car. It's not the cost for a complete LSD differential. Don't be surprised if complete OEM LSD off the parts counter is double, or even triple that of the $2030 upgrade price ;)

:smash: on myself ... you are totally right. Im gonna check with my parts guy at the dealer and see what the cost would be (internal)...

Where did you see the OEM stat? -- I assumed AMG would make one with 100% locking like the BMW M differential. Now I am wondering about whether the Renntech LSD is a worthwhile upgrade for more traction (I have the OEM LSD).

+1

I don't think that 30% stat is correct. At least I'm hoping it's not correct :)

My 2004 E55 with the Euro LSD (oem) was 40% locking... let me get more info

Vic, it looks like the 40% holds true on the CLS63 too :smash:


From this article
http://www.egmcartech.com/2011/04/25...arts-at-94900/

Thanks everyone for all the great info.

Just to clarify, the Renntech is the only aftermarket LSD available, they use some OS Giken hardware which are thoroughly proven. I talked to Quaife when we got the car in October, then talked to them again last month nothing in the works right now. The reason the C63 E55 worked out was because it crossed over to the SRT8 chassis.

Renntech FTW!!!!!

Looks like renntech then. Now gotta find the right Shop near the NYC area to do the work and a couple of other :rolleyes: things I want done.