i had heard that their were some specific issues with tuning a new 2014 e63s 4matic. Are these rumors accurate? Have they or any outfit corrected for this issue? and then the big question...what kinds of gains from just the flash can i expect from tune? being 4matic will it grip and go unlike my sl63 amg renntech flashed car

 

So 577 HP is not enough? Get a new ZO6 Stingray if you need more HP and save yourself some Benjamin's.

 

Renntech has a solid tune with it. The only issue is that it seems there is some software limitations related to torque that are still in the works.
Expect at least 100hp gain to the wheels. At the last PBIR event, a friend of mine (ced357) ran 11.2 at 126 if I remember correctly on stock tires.
The AWD seems to be robbing power up front since 2WD cars trap at 129 but the AWD is seriously quicker from a dig.

 

MB AMG > Corvette

 

just got off the phone with renntech...they got the tranny kinks worked out and they are getting 669hp and 750 tq

 

Can't wait to dyno it! :-)

 

 

Amen to that

 

Give Chris black at AMS a call

 

RENNtech can get you all sorted!

 

For the truly speed crazed 577 hp is just getting started.

 

has anyone had the Renntech reflash, on a E63 S model??

 

This is what annoys me about Renntech.

They require you to send in your vehicles ECU for programming.

They are just loading new software into your ECU. So how is there two costs for the Intermediate tune and the regular(more POWER) tune?

Its just software and the labor is the same for either tune. so how is one 2850 and the other 3495?

YES, I understand its the R&D, but why not just have the same price for either tune?

 

Have you tried eurocharged? I used them for my 08 E63 Wagon and I am pretty sure they have a tune for you car. Did not have to send my ecu to them and they will help you over the phone when you do it.

 

I had my '14 e63s tuned by ams performance/alpha performance in Chicago.

603 awhp, 717 awtq.

I had a '13 they also tuned it made 628 rwhp, 722 rwtq (rwd)