Renntech Ecu vs. PowerChip
you guys ever notice that when you driving hard and you slow down for a corner, but after the corner when you get on it hard again, there seems to be a delay? feels kinda sluggish? i think this has to do wit the transmission not downshifting in time...but the renntech ECU claims to solve this issue... in addition to adding hp and torque
my question is... does the powerchip/evosport ecu solve this problem as well?




sure, there are testimonials from chip users.. but when u selling like 100 or 200 chips, of course u get a few people that are happy with it.. and claiming it gives car more HP..
it could be 5% or maybe even 1% of the users is happy with the chip..
if these chip companys want my business. they better/should send some chips to car magazines and let them review it..
http://www.mbautowerks.com/performance/00004/00004.html
Same place same setup but on an SL55.
http://www.mbautowerks.com/performance/00010/00010.html
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or does 1 ecu offer better throttle response than the other
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In fact that goes for the rest of the MB performance upgrades too
The chip eliminates all the holes in my w208 and she pulls harder.
Never had the Renntech..but I am happy with PC.
But the added cost is really a function of customer service...they will tune your car to your altitude, intake, exhaust, filters etc. If you can make it to them in Santa Monica...I highly suggest it.
Travis and the boys are great!
In fact that goes for the rest of the MB performance upgrades too

I have noticed the same thing. With my E39 M5 and S4 it appeared like everything was in excess of $1200 while upgrades for my VW's were a quarter to half of that. Heck now you can buy a VR6 turbo kit for $6,000 and push 450+ HP. While i agree some of it has to do with supply and demand, i also believe the tuners take the attitude of "well if they can afford that 50k and up car, they can afford an extra grand here and there for add-ons". Just my .02
I have noticed the same thing. With my E39 M5 and S4 it appeared like everything was in excess of $1200 while upgrades for my VW's were a quarter to half of that. Heck now you can buy a VR6 turbo kit for $6,000 and push 450+ HP. While i agree some of it has to do with supply and demand, i also believe the tuners take the attitude of "well if they can afford that 50k and up car, they can afford an extra grand here and there for add-ons". Just my .02
The muffler is identical, and the tips are different only by stamping. I say go with the Powerchip. From CLKVegas' experience, the customer service is worth it!
Also, check out the SL55/SL65 forum. A guy in AZ had a powerchip installed and stated that speedtuning was first rate!
Also, check out the SL55/SL65 forum. A guy in AZ had a powerchip installed and stated that speedtuning was first rate!
No you don't.
Also, check out the SL55/SL65 forum. A guy in AZ had a powerchip installed and stated that speedtuning was first rate!



