kevru1223

Hello everyone, I am new to this forum. Just recently bought a 2019 c300 (w205) Amg line and wanted to get suggestions on newbie performance enhancements as well as sound enhancements for my car. I have been looking into getting some time of tune chip as well as a cold intake system to begin with but wanted suggestions and whether either of the two would require a tune of the car. Any other suggestions would be greatly appreciated too.

Keith66

I suggest an ECU flash tune. I did this on my previous C300 and it really woke it up. You'll be looking at $900+ for a good flash tune.

The stock air intake has plenty of flow to support a modded 2.0, so IMO changing the intake is a performance placebo unless you're only in it for the sucking sounds. An open air filter is just adding heat to your IAT's.

For exhaust, you can see some slight performance gains, especially with downpipes but the sound is purely subjective, comes down to what sound you like. Personally I think a loud 4-cyl sounds like a farm tractor, but that's just my opinion.

Do what you like and what makes you happy, it's your car!

Keith66

And to answer your question: you can do a Stage 1 ECM tune to a stock car without any other changes needed. It doesn't require any special intake or exhaust mods.

kevru1223

I really appreciate your response, Keith. Do you have any suggestions on specific ecu tunes? Also how difficult is that to install?

also regarding the cold air intake, I’d be lying if I said I didn’t like the sucking air noise. I am just wanting to know if the car needs to be tuned if one is installed? (And if you can send me suggestions for specific ones and brand I would appreciate too)

kevru1223

specific ECM tunes you recommend?

Keith66

You're very welcome brother. I had a AMR Performance flash tune on my C300 and was happy with it. For my current MB I'm probably going to go with Eurocharged. I'd say go with your gut for what you think you like. There's also canned tunes coming out on OBD modules that are super easy and overall less expensive, such as the one from Most Wanted Mods. Either way, they are very easy to implement. Just plug either the handheld device or OBD module into your OBD port and within a minute or so the device will flash program your ECM with the new tune.

You can always revert back to stock too, if you need.

Air intakes don't require a tune. I get you, a lot of people do the intake for sound. Since it's not my thing, I can't recommend anything there but I'm sure there are many here that can.

Keith66

I just remembered I did a rough comparison a while back, just as info:

https://mbworld.org/forums/c-class-w...an-vs-amr.html

AzurSL

You just have to be careful that whatever engine mods/ tune you chose is for the M264 motor found in the 2019+ facelifted cars. Most mods and tunes are for the M274 and will not work. It’s a shame as there is an abundance for the M274 and very little for the M264, plus whatever you find is rather expensive.

sidsidhu

only ' engine mods' I have done are the MST air intake no noticeable performance but sounds cool, GFB diverter valve (blow off valve) maybe better throttle response but sounds great lol and a FTP intake charge pipe did nothing lol.
No coding or check engine light.

BellBiv

any recommendations? i have a stock w205 at 50k miles and kinda upset at the lag of the acceleration from a stop. started happening in the last 5K miles

Keith66

If you haven't replaced the spark plugs yet, I would do that. At 50K it needs to be done anyway and you may find that brings it back to what it was, hopefully.

BellBiv

That may be it. Oh boy this B7 work job is gonna be a big one

Keith66

If you have some tools and basic mechanical ability, changing the plugs on a 4-cyl is super easy.

It took me about an hour to swap them. $80 for plugs, an hour of time and you're done.

If you're not comfortable doing it yourself, any decent independent shop can do it for you for a lot less than a MB dealer. It's not complicated or special in any way.

Good luck man!

kolven28

Hello. I have The lorinser Tune in my c300 coupe 2021 264 engine. Expensive but in same class like Brabus.
WWw.lorinser.com