Renntech, Evotech, Kleeman, Wetterauer and other Tuning companies
Kleeman and Evotech and lately Wetterauer, seems to have a good image among you V8 owners, can those who have made the upgrade give their opinion about it?
Now that the upgrades are on the market for quite some time, and you´ve been able to put some hard miles on the engine after the upgrade, imakes it a good time to talk about reliabily and ownership experience
J.Seven
Greg
I'm one of the ones that hates RennTech. Don't fall into the same trap I did. Find a SHOP you trust and make sure they are top notch. Then, go with whatever they push. Customer Service is HUGE with these mods. I found that out the hard way. Make sure whomever you use is qualified to install it and that the tuner trusts them to do so.
I'm one of the ones that hates RennTech. Don't fall into the same trap I did. Find a SHOP you trust and make sure they are top notch. Then, go with whatever they push. Customer Service is HUGE with these mods. I found that out the hard way. Make sure whomever you use is qualified to install it and that the tuner trusts them to do so.
Check out their shop and see if anybody on this forum has used them to get a feel for their interaction with their customers and the general quality of their work.
Good luck.
Check out their shop and see if anybody on this forum has used them to get a feel for their interaction with their customers and the general quality of their work.
Good luck.
LOL, he best not be from SD or he will get an earful!!

I had my ECU upgraded by Oliver at Speedtuninng USA. It was the best money I've spent on the car. The throttle response is improved. I note that you say, "Slam the pedal"....I have always found that if I SQEEZE the pedal I get better accelleration. Anyway.....the throttle response is better....there is more HP/torque and the speed limiter is removed. Overall, a great choice to do.

I chose to go with speedtuning USA (www.speedtuningusa.com). It is an Austrian company that is just breaking into the US. Oliver is the proprieter....and is a great guy. He talked me through the process. I pulled the ECU on Mon...fedx it to him, and had it back in my car by Wed morning.
What I was looking for was the speed limiter removed...which they did....As a by-product I got another 40-50hp/40-50 lb ft of torque (or something like that). The car has been flawless, has topped out at 202/3 and embarrasses most everything at track days! And all for the grand total of $350...plus shipping. They are now offering a pulley upgrade for about $600 that'll give a bit more....but in reality.......does it really need more...........NO.
Have fun....be safe....and take a driver's school....that's probably the best auto performance investment you can make.

Keep trying with the BS sales pitches!
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To IngenereAMG:
I don't mind some cat trying to run a virtual shop, but I'd say to take responsibility for what you say and do. You say you back your work up, but the truth doesn't come out until **** actually hits the fan. Do you have malservice insurance? Build a rep and pay your dues. Boasting here won't get you any business. You saw where that got you on another forum. Just be honest, since the crowd will smell it out anyway. Don't take this the wrong way. I'm speaking from experience. I was on the customer end of it, but it is uncomfortable none the less. Lesson learned. Don't pretend to be "big time" if you aren't.


If it claim what it does.
if not 

then you can say what ever you want.....And I will join you....
give me 2 weeks time...I will post before and after dyno charts at that time...
What happened to doing some real work that takes some real hours??
Warning # !: No hitting below the belt pls. Continue!

I still remember and miss my Audi, when anyone can get a chip for it for around $400 (GIAC chip). And I don't want to hear how more difficult the AMG engines are to tune, when on Audi you had much more mechanics to regulate on a turbo engine.
Also, back on Audi days there was a company that supposedly stole a code from another and went on to resell it (or so it was said). Wonder if this is possible for some MB tuners as well?
What happened to doing some real work that takes some real hours??
Having said that, I'd love to know how some of the tuners here actually go about developing their software. On the GIAC chip for example, many of Audi crowd was convinced, since many witnessed the engineering that went into the software development.
I am too a little skeptical about shipping out my ECU while keeping the fingers crossed to a company of whose development process I know nothing about.









