NickE63

my 2012 E63 lease is up, i pulled the trigger and am picking up a 2014 AWD E63s. i currently have a Eurocharged tune on my 12 E63. I'm wondering what vender has the best tune out that makes the most power for the E63s can anyone help thanks in advance

MJ50

http://www.renntechmercedes.com/www/node/1298

sdg1871

Yes the Renntech full tune has the greatest claimed power gains of any of the tunes for the M157 engine in the 2014 E63. Renntech claims 701 bhp and 839 lbs-ft from just the tune only without other mods.

This is the tune that I bought (along with the Renntech sport mufflers--additional claimed gains of 15 bhp and 20 lbs-ft) for my incoming 2015 E63 S sedan.

AMS's claimed power gains from its tune is almost as high: 700 bhp and 830 lbs-ft.

BrabusNYC

RENNtech

xtyper

Renntech has worked out very well for me.

sdg1871

It certainly has.

kcphuah

Do you have a sound clip of your rado downpipe + tune? I have been on the fence of deciding if I should get an intermediate tune + downpipe or just intermediate tune and everyhting else stock. The E63s is my DD and I am afraid the noise will be very loud with downpipe.

ced357

I do not have Downpipes yet (waiting for AMS to release theirs before making a decision) But, I have heard a number in person and they sound fantastic, just the way it should have from the factory. Even de-catted pipes do not sound obnoxious. If you really have concerns over cabin noise, I suggest getting catted ones. I can't wait to get them on my car!!

sdg1871

I got the full Renntech tune and bought the Renntech sports mufflers rather than the downpipe. They are like half the price of the catted downpipes with greater claimed power games than the downpipes and the sound clips on them sound amazing.

pierce71

Just got RENNTech tune and there decatted downpipes. All I can say is phenominal.

sdg1871

Nice! Enjoy!

kcphuah

sdg1871, with the renntech sport muffler, can you use the stock exhaust tips? How would you rate the noise level? And do you have a sound clip of your set up?

sdg1871

The Renntech mufflers are designed to work with the stock exhaust tips. My car does not arrive until the end of January 2015 so I haven't put it on yet obviously.

I certainly will put up a clip after that. But there is a great clip of what it sounds like on Renntech's website.

loungn14

We make some awesome power as well, within 5% of everyone else. When shopping graphs, make sure you are not looking at a sales graph over an actual dyno

If you want to stick with us let me know, we have massive discounts for previous customers.

AMG E Power

go with renntech. they have proven results in half mile / 1/4 mile. not just some dyno graphs lol

AMS_Performance

Here is our 'Dyno'