SL/R230: Anyone have the Renntech 625hp/745tq upgrade?
Member
Joined: Dec 2001
Posts: 107
Likes: 0
From: Anchorage, Alaska
04 SL600 & 04 Range Rover
I have the RennTech stage 3 upgrade. I put 300 miles on my car before the upgrade. I now have about 2,000 miles on my odometer. There is a noticeable performance gain. I have not had any problems. With this $6,400 upgrade you will exceed the specs of an SL65. Go for it, you won't be disappointed!
Senior Member
Joined: Feb 2002
Posts: 298
Likes: 2
From: Boston
SL600, A8L W12, Continental GT, Range Rover SC
I have it and it made a big difference in terms of better throttle response in addition to higher performance. There is a fairly long discussion of the upgrade in this thread ...
https://mbworld.org/forums/sl-class-r230/60870-sl55-sl600-differences.html
however, while I’m very pleased with it, I don’t think the software actually produces quite as much horsepower as claimed. I made that controversial case here ...
https://mbworld.org/forums/showthrea...1&page=6&pp=10
But even if I’m right and it’s just shy of 600 HP, I still think it’s worth doing.
https://mbworld.org/forums/sl-class-r230/60870-sl55-sl600-differences.html
however, while I’m very pleased with it, I don’t think the software actually produces quite as much horsepower as claimed. I made that controversial case here ...
https://mbworld.org/forums/showthrea...1&page=6&pp=10
But even if I’m right and it’s just shy of 600 HP, I still think it’s worth doing.
