RENNtech Powder Module for CLE53 AMG Tune
Member
Joined: Jul 2022
Posts: 75
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From: Ann Arbor, MI
2025 CLE 53; JB4
I appreciate you looking out. I had the JB4 on my E400 for like 4 years...worked flawlessly. Failsafes everywhere.
I only have a few pics because it's Michigan and I've been busy lately. Trust me...I'd like to have more...but...life. Attaching what I have for now.
Definitely going to have to burn off the summer tires.
I have other pics, but they include my plate, and I don't feel like scrubbing that off or whatever. I'd include the dealer site that has like 50 pics, but that would show the VIN...blah blah blah.
I only have a few pics because it's Michigan and I've been busy lately. Trust me...I'd like to have more...but...life. Attaching what I have for now.
Definitely going to have to burn off the summer tires.
I have other pics, but they include my plate, and I don't feel like scrubbing that off or whatever. I'd include the dealer site that has like 50 pics, but that would show the VIN...blah blah blah.
Member
Joined: Jul 2022
Posts: 75
Likes: 36
From: Ann Arbor, MI
2025 CLE 53; JB4
Also...if you're one of the biggest jewelers in the Diamond District, what are you doing arguing with me?
Shouldn't you be scouting properties in Monaco or getting ready to hop on your PJ for the next F1 race, instead of telling folks buying '$100K cars' they're not buying the right tunes?
Shouldn't you be scouting properties in Monaco or getting ready to hop on your PJ for the next F1 race, instead of telling folks buying '$100K cars' they're not buying the right tunes?
Member
Joined: Jul 2022
Posts: 75
Likes: 36
From: Ann Arbor, MI
2025 CLE 53; JB4
Also...if you're one of the biggest jewelers in the Diamond District, what are you doing arguing with me?
Shouldn't you be scouting properties in Monaco or getting ready to hop on your PJ for the next F1 race, instead of telling folks buying '$100K cars' they're not buying the right tunes?
Shouldn't you be scouting properties in Monaco or getting ready to hop on your PJ for the next F1 race, instead of telling folks buying '$100K cars' they're not buying the right tunes?
Thread Starter
Member
Joined: Dec 2024
Posts: 136
Likes: 25
From: LA
2024 CLE53 AMG
I mean to play devils advocate here, we can't do anything other than piggyback tunes at the moment. Once the ECU has been unlocked then it's fair game for custom tunes, but for now we're using what we can. Renntech / jb4 / racechip are all essentially doing a similar thing. Some marginally better than others. Lets keep the peace here guys!
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Joined: Mar 2025
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The jb4 isnt meant for the cle. yes its the same engine as the e53 but completely different. If renntech said dont use the jb4 it will do damage over time…. im not questioning it. Saying that this is a sales tactic is crazy work.
Just because its not throwing a cel at the moment… doesn't mean you aren't doing damage everyday using it. Maybe you can install the nitrous kit on alibaba.
Saying renntech has inferior products 😭😭😭
boost targets, safety margins and timing completely different…..
Just because its not throwing a cel at the moment… doesn't mean you aren't doing damage everyday using it. Maybe you can install the nitrous kit on alibaba.
Saying renntech has inferior products 😭😭😭
boost targets, safety margins and timing completely different…..
Member
Joined: Mar 2024
Posts: 138
Likes: 16
2023 Mercedes s580
If anyone tries out this new piggyback by RENNtech on the CLE53 let me know! I think it's relatively new, but looks promising. Feel like for a plug and play device it's on the pricey side though. I remember other plug and plays were more around the $600-$700 mark.
Any one have experience with them yet? Might be to early to ask but wanted to start the thread anyway!
Link:
https://www.renntechmercedes.com/ind...53-1278-detail
Any one have experience with them yet? Might be to early to ask but wanted to start the thread anyway!
Link:
https://www.renntechmercedes.com/ind...53-1278-detail
The other one I think you're talking about is by Racechip I'm just significantly cheaper for a similar outcome. https://www.racechip.us/shop/mercede...-438lb-ft.html
Does this look similar to the increased output alleged by RENNtech? I really don't know much about this so maybe you know more and can explain to me?
Has anyone tried one of these on the cle-53? Is there a big difference?.
Does anyone know the difference between the dyno tested horsepower and the regular horsepower numbers put out by the manufacturer?
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Joined: Mar 2024
Posts: 138
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2023 Mercedes s580
Thank you for the link, good info. HOWEVER, I ran some numbers and the Renntech HP/TQ numbers just don't add up.
I've been waiting for engine dyno of the CLE53 but their own Dyno curve numbers don't agree with what they state in the words below.
Curves, Stock: 414HP/435TQ vs Words, Stock: 493HP/517TQ
Curves, Chip: 455HP/470TQ vs Words, Chip: 541HP/571TQ
Curve Chip-Stock: 41HP/35 TQ vs Words Chip-Stock: 48HP/54TQ
I am very pleased with the Renntech stock rear wheel dyno numbers. I have heard that MB/AMG under-rates their engine power but there is a lot of confusion between Power measured at the engine vs the rear wheels. I have to think that MB rates their engine power at the engine, with no drivetrain losses, and the Renntech dyno is rear wheel only, so the M256 looks really good. The math using the Renntech words adds up, the difference between the Renntech Stock Dyno and the Renntech words is 19%, which is more than the 16% Renntech claims to use to compensate for drivetrain losses. And if both numbers are rear wheel then I don't know where this power increase comes from.
I think that the dyno curves are accutate and 41HP/35TQ gains are reasonable for a mild tune with increased boost and the accompanying fuel and timing mapping. Power you will feel but it ain't 541HP/571TQ no matter which way you calculate the numbers.
P.S. 414 RWHP translates to 480 Engine HP using a 16% drivetrain loss, pretty good!
I've been waiting for engine dyno of the CLE53 but their own Dyno curve numbers don't agree with what they state in the words below.
Curves, Stock: 414HP/435TQ vs Words, Stock: 493HP/517TQ
Curves, Chip: 455HP/470TQ vs Words, Chip: 541HP/571TQ
Curve Chip-Stock: 41HP/35 TQ vs Words Chip-Stock: 48HP/54TQ
I am very pleased with the Renntech stock rear wheel dyno numbers. I have heard that MB/AMG under-rates their engine power but there is a lot of confusion between Power measured at the engine vs the rear wheels. I have to think that MB rates their engine power at the engine, with no drivetrain losses, and the Renntech dyno is rear wheel only, so the M256 looks really good. The math using the Renntech words adds up, the difference between the Renntech Stock Dyno and the Renntech words is 19%, which is more than the 16% Renntech claims to use to compensate for drivetrain losses. And if both numbers are rear wheel then I don't know where this power increase comes from.
I think that the dyno curves are accutate and 41HP/35TQ gains are reasonable for a mild tune with increased boost and the accompanying fuel and timing mapping. Power you will feel but it ain't 541HP/571TQ no matter which way you calculate the numbers.
P.S. 414 RWHP translates to 480 Engine HP using a 16% drivetrain loss, pretty good!
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Thread Starter
Member
Joined: Dec 2024
Posts: 136
Likes: 25
From: LA
2024 CLE53 AMG
Had to tap back in here and check for any other new members who have tried race chip or jb4 or others? Would love to hear your experience! I've been running the JB4 on Map1 for a few months, zero issues.
Member
Joined: Mar 2025
Posts: 149
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From: Los Angeles
2020 E53 AMG Sedan
i'm so curious about the JB4, used to run them on my BMWs. the power gains were insane. my car is quick generally but another 80hp would be pretty great
Thread Starter
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Joined: Dec 2024
Posts: 136
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From: LA
2024 CLE53 AMG
I think it's great, especially in 3-4 gear, the boost goes hard. I'm gonna try Map 2 this week, but I know it eventually gives a CEL, but you can clear it within 10 secs on the app. They still haven't worked out bugs on it yet. Map 1 is totally fine though and no CELs. Apparently i'm pushing around 480bhp with just map 1.
Thread Starter
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Joined: Dec 2024
Posts: 136
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From: LA
2024 CLE53 AMG
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2025 MB CLE53AMG
Thread Starter
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Joined: Dec 2024
Posts: 136
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From: LA
2024 CLE53 AMG
Junior Member
Joined: Apr 2025
Posts: 41
Likes: 19
2025 MB CLE53AMG
Thread Starter
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Joined: Dec 2024
Posts: 136
Likes: 25
From: LA
2024 CLE53 AMG
Member
Joined: Mar 2024
Posts: 138
Likes: 16
2023 Mercedes s580
Very true! I've had chips on previous cars, albeit not a Benz and anytime I had issues I removed it and took it in for warranty work without any questions. It was never anything to do with the actual module though but they definitely deep dived on a bunch and didn't say anything or notice there was a piggyback installed. You're still right though, every manufacture is different and might not be worth the risk. Im also gonna hold off too!
Bro, 12 on 1/4 mile is so so good. You done any measures on the 0-60 yet? I keep hearing 3.8s floating around. I love this car and can't wait to reach 1K miles lol.
Bro, 12 on 1/4 mile is so so good. You done any measures on the 0-60 yet? I keep hearing 3.8s floating around. I love this car and can't wait to reach 1K miles lol.
Thread Starter
Member
Joined: Dec 2024
Posts: 136
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From: LA
2024 CLE53 AMG
By the way, I looked into the CEL code the car was throwing back when it was coming on. (Code: P22C9...which I read through the JB4 app and then googled)
The MB ECU doesn't understand why there is additional boost, so it believes the waste gate is stuck closed, throwing the CEL. Doesn't affect performance whatsoever. It's the reason Burger needs someone to stop by with a 53 to code a solution.
The MB ECU doesn't understand why there is additional boost, so it believes the waste gate is stuck closed, throwing the CEL. Doesn't affect performance whatsoever. It's the reason Burger needs someone to stop by with a 53 to code a solution.
Member
Joined: Jul 2022
Posts: 75
Likes: 36
From: Ann Arbor, MI
2025 CLE 53; JB4
Me again! I got the same code on map 2 using a e85 blend. Since CA gas sucks. I think i was sitting around 94 octane after the blend. Did yours eventually stop coming up, or does it still come up? No fix re: JB4 yet. They even took my car for research & development to try to fix this, but no luck.
With an E blend, you should be seeing 97-99ish octane? Maybe a point or two lower w/CA 91, but that’s the whole point of an E blend. Pump them numbers up.
Last edited by blakers; Dec 12, 2025 at 06:22 PM.
Thread Starter
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Joined: Dec 2024
Posts: 136
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From: LA
2024 CLE53 AMG
Im on the stable map 3 with zero codes in weeks on some sort of E30-40. Go to the E mix calculator I sent awhile back, put some more E”85” - it’s never 85, and put it on the map 3 stable map. And obviously clear your codes. The stable map3 specifically addresses the P….9 code. I forget the code exactly.
With an E blend, you should be seeing 97-99ish octane? Maybe a point or two lower w/CA 91, but that’s the whole point of an E blend. Pump them numbers up.
With an E blend, you should be seeing 97-99ish octane? Maybe a point or two lower w/CA 91, but that’s the whole point of an E blend. Pump them numbers up.
Member
Joined: Jul 2022
Posts: 75
Likes: 36
From: Ann Arbor, MI
2025 CLE 53; JB4
Yeah I was getting both p22c9 and p22c8 codes on the beta map, but the stable map is where it's at...zero codes. Why there are two codes for the same issue? I dunno...German engineering?
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Joined: Dec 2024
Posts: 136
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From: LA
2024 CLE53 AMG
