AMG GT: GT, GTS, GTC, GTR, GT-4 door (C192 / R192) 2024 - present: The GT/GT S is the second generation GT sports car developed entirely in-house by Mercedes-AMG.

GT/C192/R192: RENNTECH RPM REAL PERFORMANCE

Old Feb 26, 2026 | 07:26 AM
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AMG GTR, SL63,SLSAMG
RENNTECH RPM REAL PERFORMANCE

Hello i want to know about the renntech RPM, HAVE A REAL EXPERIENCE WHITHVTHIS UNIT? BECAUSE IN VIDEO THE 63 KILLS A 55 WHITH THE RPM, I WANT YO KNOW IF REALLY MAKES MORE FASTER THE 55
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Old Feb 26, 2026 | 01:44 PM
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2019 G63 AMG & 2024 AMG GT63
I don't have a 55, but I have a 63 which I added RT RPM to, and it definitely made a noticeable difference in the 63. I would imagine the upgrade from stock 55 is as noticeable.

I pulled against a stock 55, when my 63 was also stock, and it was a pretty obvious performance difference then. The video where the 63 still kills the 55 is definitely closer than stock vs stock. But the 63 stock has 625 actual HP per Renntech, so the advertised stock oem power figures at least on the 63 are understated by at least 50hp. The RPM def helps the 55 keep up with the 63. it's a noticeable difference for sure.
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Old Feb 26, 2026 | 02:55 PM
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Here is said video


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Old Mar 10, 2026 | 09:39 AM
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I watched the video. The RENNTECH 55 does hang with the 63 quite well. I wonder if the 63 has a different intercooler and downpipes. I havent been able to find anything on it.
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