Poll for a tune: Renntech v. Weistec
Last edited by E-SICKTY3; Jul 18, 2013 at 05:00 AM.




Would that friend be Niko? As for the tune Id go for Weistec not only because pricing is better but because they are local (I think you are Cali). I always want to be close to my tuner not only if there are issues but also becuase its good to see their operation and possibly ramp up your mods.
Personally I think Renntech is way too expensive when you consider you can get other reputable tuners for a third of the price.
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Would that friend be Niko? As for the tune Id go for Weistec not only because pricing is better but because they are local (I think you are Cali). I always want to be close to my tuner not only if there are issues but also becuase its good to see their operation and possibly ramp up your mods.
That makes sense Vic, price wise Renntech is more expensive and their intermediate ECU tune is cheaper but I didn't realize before that Weistec has their tune on 600whp mark with $100 differnce while Renntech intermediate tune does not hit 600whp mark (about 25-30hp diff).
Thanks guys for the input ! Weistec it is
Note: How do you quote together people's replies so that I can reply them at 1 post? (sorry noob question)
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That makes sense Vic, price wise Renntech is more expensive and their intermediate ECU tune is cheaper but I didn't realize before that Weistec has their tune on 600whp mark with $100 differnce while Renntech intermediate tune does not hit 600whp mark (about 25-30hp diff).
Thanks guys for the input ! Weistec it is
Note: How do you quote together people's replies so that I can reply them at 1 post? (sorry noob question)
That makes sense Vic, price wise Renntech is more expensive and their intermediate ECU tune is cheaper but I didn't realize before that Weistec has their tune on 600whp mark with $100 differnce while Renntech intermediate tune does not hit 600whp mark (about 25-30hp diff).
Thanks guys for the input ! Weistec it is
Note: How do you quote together people's replies so that I can reply them at 1 post? (sorry noob question)
I will personally go with Eurocharged (previous personal experience was awesome and he is running a summer special tough to beat).
Nothing wrong with Weistec and Renntech. Top tuners as well.
Btw, did you sell your M5 Vic? Saw it on a dealer listing a while ago -- exactly like yours HRE and all.
Anyway, I'm going to get my car tuned at Weistec tomorrow morning
I will try to do another run with my friend Switzer tuned M5 when I got back.
I am going to the strip at the end of the month to see how the car does stock and will dyno as well. Then I will test after the tune.
If you were to do a quick search on the forum about Eurocharged, you should find enough feedback to prove that he is top notch. He has been on this forum for a long time.
E-SICKTY3 I am surprised that you never heard of them , they have branches all over the world.
I am going to the strip at the end of the month to see how the car does stock and will dyno as well. Then I will test after the tune.
If you were to do a quick search on the forum about Eurocharged, you should find enough feedback to prove that he is top notch. He has been on this forum for a long time.
Too bad that I don't have time to do before dyno, I might get the after dyno tho. I will also do another run with my friend Switzer tuned M5 -- hopefully I can catch up with him if not win over him.
Maybe I just didn't do my research that deep -- I might have heard about them but I just don't remember. I also heard about ETG?? but not reputable feedback from my shop.

Yes, I saw that too -- I was about to go with that tune at first, then I realized that there is about 30hp difference from Weistec with $100 diff in price while I get about 600whp. What I heard was their standard tune was too aggressive in the beginnning. I'm pretty sure they revised their tune accordingly now.
Renntech prices are simply ridiculous.
If you have major engine failures, your ECU will be sent to Germany and your warranty claim will be denied. Your local dealer can try its best but their voice has little power. Renntech friendly dealers do it for the money they can charge. Other dealers will be mod friendly but people should not be fooled into thinking that buying Renntech tune is bullet proof when it comes to warranty.
When you buy a new MB you sign a form that says your not going to export the car, and undercut the dealer in higher priced countries.
Next ime your on the eastcoast of FL. stop by Renntech and check out their operation.












