GermanCarShow

Found it - cold air intake. CAI

https://www.logosengineeringmotorwor...old-air-intake

MaverickC43

I took the intake off. It was making weird noises.
I have done no mods to my car for my stock times. Except tires & wheels

MaverickC43

Is there really a chance I bought a cpo that had a tune on it?

MaverickC43

u want to see the log. Or would bms be able to tell?

MaverickC43

And who would tune a car but leave the 130mph limiter??

Howyalivin

There are a lot of tunes that don't remove the limiter, especially among the ones that are "tamer". We all know the M340i is easily faster than the C43 when both are bone stock. Take a look at this M340i thread with quarter mile times. You'll have to roll about halfway down the first page to get to cars that are stock. Ignore the cars that are modified:

https://g20.bimmerpost.com/forums/sh....php?t=1880559

Your car is running as fast or faster than the stock cars there. As for getting a car CPO, with a tune, that has definitely happened before. Here's a thread from this site on exactly that issue:

https://mbworld.org/forums/w213-amg/...tuned-ecu.html

Darrington

Getting a used MB with a tune, that’s a nice surprise!

C450AMGCT

Yeah that's quicker than stock for sure. I'm running a Dinan Tune on my C450 which is just more of an entry thing and my best logged time on Dragy was 4.39 for 0-60. Either that or your car is an anomaly.

MaverickC43

BMS went through my logs when I wasn’t getting the improvement I wanted, and they said my boost levels looked proper on map 0 and improved on map 2.
so who knows what’s going on

GermanCarShow

They didn't mention any fuel data or any other aspects of making more power? They say (even boast with pride?) on their web site that they're not a simple boost increasing system, but that they take many more aspects into account to create a harmonious (my word) solution to increasing power. I don't have a JB4, but am looking into it and reading a lot of threads on it. I would think that they could tell from your map 0 data if you had a tune because the boost, fuel, air, throttle position and other sensors, related to speed, would give it away. (Actually, your 0-60 and 1/4 mile give it away!) That's an assumption on my part, but it makes sense. Maybe they don't measure vehicle speed in their logs, or other things that would be telltale signs of an over-performing engine vs. stock. It seems to me that that is their whole business.

MaverickC43

Guess & check
just like 3rd grade math.

Mph is on the logs but I’ve heard the logs aren’t a good 0-60 or 1/4 mile timer.

It is strange how there is such a wide range of results that imo should all be much closer.

but then I guess my car shouldn’t have run the 0-60
Times that it has 🤷🏻‍♂️🤷🏻‍♂️🤣🤣

MaverickC43

Must be the K&N filters. Lmao
also I don’t have my front license plate On!!
Haha

BoolitSpunjBoon

I'm impressed. You need to teach me how to drive that quick Maverick.

MaverickC43

where u live?
we’ll do amg driving academy. Lol

BoolitSpunjBoon

North of Seattle. I plan on taking mine to the track next month. Looking forward to the results- Eurocharged stage 1 and Logos FAI with JB4 monitoring on map 0.

MaverickC43

We all love to see what these cars can do!!!