Upgrade engine or turbos and track?
Junior Member
Joined: Dec 2020
Posts: 15
Likes: 5
C63
I'm also looking into this. Renntech advertises around a 50-70 whp increase for stage 1 handheld tunes, considering the price it's seems like a reasonable upgrade. From all the research it doesn't seem like there's any obvious downsides. Although I think it would be best to pair it with other upgrades to have a well rounded car. There's also the upgraded turbos, that's another story I guess.
MBWorld Fanatic!
Joined: Feb 2013
Posts: 1,212
Likes: 228
From: Norther CA
2014 cls63 a amg. 2018 AMG GTR
I'm also looking into this. Renntech advertises around a 50-70 whp increase for stage 1 handheld tunes, considering the price it's seems like a reasonable upgrade. From all the research it doesn't seem like there's any obvious downsides. Although I think it would be best to pair it with other upgrades to have a well rounded car. There's also the upgraded turbos, that's another story I guess.
I’ll keep you posted after sunday laguna seca. will be pushing her. i have the eurocharge stage one. 710 crank hp tune. will mainly be watching the oil and water temps. i’m used to 650 supercharged C7Z so i should feel right at home.
Junior Member
Joined: Jan 2019
Posts: 54
Likes: 28
From: Miami,Fl
2018 AMG GTR 2018 E63s 2015 c63s(sold)
I currenty have 850hp in my GTR. stock trans and engine internals. Ptg 1000 turbos and spool performance FX180 fuel high pressure pumps. full E85. Car runs good. check out my dyno pull on Instagram @djcrunchtime is my IG name
MBWorld Fanatic!
Joined: Feb 2013
Posts: 1,212
Likes: 228
From: Norther CA
2014 cls63 a amg. 2018 AMG GTR
