AMG GTS Renntech or AMG GTR?
Option 2: Buy an AMG GTS and Renntech it with ECU, Stage 1 Turbo upgrade and coil overs (it'll still come out cheaper than the stock GTR).
Sure I have the same dilemma in terms of the transmission changing but at least I know I'll have a ton more power regardless of what changes they make to the motor.
Before someone says why not Renntech the GTR my answer would be the cost and time. First the GTR has to come out and then it'll take time before Renntech puts out the mods. I can do all the Renntech stuff to the AMG GTS and it'll cost the same as the GTR or less however if I do a bunch of work to the GTR now I'm going well over 200k which I'd like to avoid ( I just dropped over that on the S63 cabriolet which will inevitably be getting a new motor, transmission, tech and facelift in the near future).
This will be a replacement for my Ferrari 458 Italia and not a daily driver (that's the s63 cab) but it also will not be used on the track hardly ever, if it all. Also no need to mention anything warranty related as that is not a factor I care about.
I can't find squat on someone actually reviewing an AMG GTS with this package I'm looking to put on so perhaps one of you know of an article or have experience with an AMG GTS modified this way as that would be very helpful.
All thoughts are welcome, thanks.
I did not have the choice of the GT-C but would consider it as it has the wide body of the GT-R and since you are not going to track it, it could be the more sensible option.
IMHO the current turbo upgrade is not worth it and we need to wait for full turbo upgrades.
The only + for the GT-R is IF one might think it will be produced in a fairly limited # and the value will hold more than the basic GT/GTS.
As a side note and while I love my GT, I am not sure I would trade my 458 for it.

Power upgrades stress the cooling system if your going the aftermarket route. The GT-R has taken this into account and upgraded the cooling for the transmission and intercoolers. The only aftermarket cooling package I'm familiar is the Dime research package that address this issue.
Remember the Corvette C7 Z06 when the new owners starting flogging them on the track and complained about lack of power. It was the ECU pulling timing and boost. You will see the same thing here I guarantee it.
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I would also as I should have mentioned absolutely put the Renntech down pipes on it.
I'm not sure about the turbo mod either because as great as 700 hp is I don't see it adding much based on the car being rear wheel drive. Getting traction will probably be difficult enough with over 600 hp.
The 458 is the most fun car I've ever owned but I've had it for almost two years and I like to switch it up pretty often.
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Option 2: Buy an AMG GTS and Renntech it with ECU, Stage 1 Turbo upgrade and coil overs (it'll still come out cheaper than the stock GTR).
Sure I have the same dilemma in terms of the transmission changing but at least I know I'll have a ton more power regardless of what changes they make to the motor.
Before someone says why not Renntech the GTR my answer would be the cost and time. First the GTR has to come out and then it'll take time before Renntech puts out the mods. I can do all the Renntech stuff to the AMG GTS and it'll cost the same as the GTR or less however if I do a bunch of work to the GTR now I'm going well over 200k which I'd like to avoid ( I just dropped over that on the S63 cabriolet which will inevitably be getting a new motor, transmission, tech and facelift in the near future).
This will be a replacement for my Ferrari 458 Italia and not a daily driver (that's the s63 cab) but it also will not be used on the track hardly ever, if it all. Also no need to mention anything warranty related as that is not a factor I care about.
I can't find squat on someone actually reviewing an AMG GTS with this package I'm looking to put on so perhaps one of you know of an article or have experience with an AMG GTS modified this way as that would be very helpful.
All thoughts are welcome, thanks.
I think you are a much better candidate for a GTC. You get the more practical car, have the wider body and more important, the the updated suspension/rear wheel steering. If you need more power, then tune that one
.I would be careful with doing downpipes as you cannot easily put it back to stock and that will seriously affect resale as it cannot pass emission. I chose to use the secondary cat delete option and it achieves pretty much the same results.
I would also as I should have mentioned absolutely put the Renntech down pipes on it.
I'm not sure about the turbo mod either because as great as 700 hp is I don't see it adding much based on the car being rear wheel drive. Getting traction will probably be difficult enough with over 600 hp.
The 458 is the most fun car I've ever owned but I've had it for almost two years and I like to switch it up pretty often.
The GTR has a revised cooling system that allows extensive track flogging along with adjustible slip control, rear wheel steering and advanced aero. Slipping on coils and a tune won't put one in the same leage as a GTR. On the other hand if you want to drive without a kidney belt the GTS might be the ticket.
AMG have put a lot of hard work into this car. It has stuff that you just cannot bolt on. as a result, it is now putting down track times that are extremely impressive. Even quicker than a Pcar GT3 RS and miles quicker than a 458.
Further demand is so high there is a strong possibility you could drive it for a year free of charge. I have already had an offer from a frustrated buyer for 30K over and I haven't even taken delivery yet (8 weeks time).
With regards to ride, the GTR actually rides better than the GTS.
All the money you spend on a Renntech upgrade will simply be flushed down the drain when you come to sell it. Indeed, the car will most likely depreciate faster with the Renntech stuff than without it.
However, the OP based on the car he shared he owned does not seem to live on the track and therefore a tuned GT(S) will be quicker and faster on the street or on the occasional drag strip and will cost at least $50K less.
Less money invested in a depreciating asset is a big plus in my book.
For the dreamers out there that think a GT-R will hold its value better than a GT(S) or sell in one year for MRSP, I have proprietary ice cubes to sell you.
For resell purposes, it is very easy to revert a slightly modded car back to stock and not everyone lives on the forum.
My first two years of owning my first one it spend more miles on a tow truck going to and from the dealer than I had on the odometer.
Expect service bills to routinely be from 5K to 12K and sometimes a little more if a belt service is needed.
I kept my one twelve years and loved it but was always afraid to leave it alone anywhere and never drove it far as you never know when it is going to just stop.
As far as I am concerned, MB and Porsche are the Gm cars of Germany and you can beat the crap out of them and they keep running. Not going to happen with anything from Italy.
Looking for a Porsche or MB this time.


Go for the base GT and get the Renntech ECU : don't even worry about upgraded Turbos you won't notice much of a difference after 600HP.
No reason to waste your money on a GTS it is just an ECU tuned GT.
As far as the other things the GTR adds they are not necessary. The stock cooling system can easily handle the RENNTECH ECU at 601HP. The only real benefit to the GTR is that it has a more aggressive body but not sure that is worth the additional money especially when the lease deals on GTs now are amazing and probably 1/3 of what the GTR lease would be.




Go for the base GT and get the Renntech ECU : don't even worry about upgraded Turbos you won't notice much of a difference after 600HP.
No reason to waste your money on a GTS it is just an ECU tuned GT.
As far as the other things the GTR adds they are not necessary. The stock cooling system can easily handle the RENNTECH ECU at 601HP. The only real benefit to the GTR is that it has a more aggressive body but not sure that is worth the additional money especially when the lease deals on GTs now are amazing and probably 1/3 of what the GTR lease would be.
Different tools for different purposes. Based on what has been tested and published so far shows that the GTR is one of the most capable cars on the track.
It will leave and GT/GTS, tuned or not, behind.
That said, for me the GTC is the most interesting model; you get the luxury creature comforts, coupled with the GTR suspension/4 wheel steering. Plus I love the wider body
Different tools for different purposes. Based on what has been tested and published so far shows that the GTR is one of the most capable cars on the track.
It will leave and GT/GTS, tuned or not, behind.
That said, for me the GTC is the most interesting model; you get the luxury creature comforts, coupled with the GTR suspension/4 wheel steering. Plus I love the wider body





Different tools for different purposes. Based on what has been tested and published so far shows that the GTR is one of the most capable cars on the track.
It will leave and GT/GTS, tuned or not, behind.
That said, for me the GTC is the most interesting model; you get the luxury creature comforts, coupled with the GTR suspension/4 wheel steering. Plus I love the wider body

I wonder if this itself isn't worth it.
No need to add original car is always worth more than a tuned one when reselling.



