Increasing HP/Torque
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Newbie
Joined: Jan 2017
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2014 E350 Sport 4matic
Increasing HP/Torque
Before anything, I'd like to point out that i'm not talking about making the car as fast a an E550 or even close to it. Anyway, I have a 2014 E350 4matic and i'm just wondering if its possible to get it up to 350hp and defintely more torque? Any suggestion is appreciated.
Member
Joined: Nov 2016
Posts: 88
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From: Long Island, NY
2014 Mercedes Benz E350 Sport 4matic
I've been looking around a little and it seems theres really almost no performance parts for the E350. The 550 has but I would be interested to see answers here because I haven't even seen so much as an exhaust for it.
Super Member
Joined: Feb 2013
Posts: 580
Likes: 62
From: Maryland
2013 E550 4Matic
You can do air filters and a custom catless downpipe... but I doubt there's any demand for a ECU tune or anything like that to make it more powerful... some people use SprintBooster to help with the throttle response and it seems to be good enough for them. For $300 or whatever, it's not a bad thing to try. I tried it on my Civic back in the day and I was able to spin tires all the way through second gear with my 1.8L base model lol
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Joined: Feb 2004
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From: NY
2014 E350 4Matic
OE Tune is great for the E350
I hear you and did the same research. All I found was tuning. So I purchased a tune from "OETuning" for my 2014 E350. Check out their claims of a 23 ft/lb increase in torque and a 23 hp increase after the tune: http://www.oetuning.com/products/mer...z-e350-3-5-gdi . While these numbers aren't spectacular, their tune really transformed my car. It is a lot more fun to drive, accelerates quite a bit faster and shifts more aggressively. The best news is, OE reprograms both the "E" setting and the "S" setting, making Sport much faster than the original Sport and the tuned "E". I can now drive my E350 like my previous C43 AMG (V8) -- not the C55 though. With the tune I am satisfied with the car and find it to be a great sporty but sedate sedan.
Note, the ECU has to be removed and sent to OE in CA. It is extremely easy to remove. No tools are required really, only a flat head screwdriver for convenience. I could not find a tuner that was able to tune our direct injected gasoline E350 engine remotely with a programmable OBDII tool. Many more recent models can be tuned that way but, unless you guys find it, ours can't. With overnight shipping, OE tunes and overnights your ECU back to you the same day they receive it, so you will only be without your car for 2 days.
Good luck.
Note, the ECU has to be removed and sent to OE in CA. It is extremely easy to remove. No tools are required really, only a flat head screwdriver for convenience. I could not find a tuner that was able to tune our direct injected gasoline E350 engine remotely with a programmable OBDII tool. Many more recent models can be tuned that way but, unless you guys find it, ours can't. With overnight shipping, OE tunes and overnights your ECU back to you the same day they receive it, so you will only be without your car for 2 days.
Good luck.
Member
Joined: Nov 2016
Posts: 88
Likes: 13
From: Long Island, NY
2014 Mercedes Benz E350 Sport 4matic
I hear you and did the same research. All I found was tuning. So I purchased a tune from "OETuning" for my 2014 E350. Check out their claims of a 23 ft/lb increase in torque and a 23 hp increase after the tune: http://www.oetuning.com/products/mer...z-e350-3-5-gdi . While these numbers aren't spectacular, their tune really transformed my car. It is a lot more fun to drive, accelerates quite a bit faster and shifts more aggressively. The best news is, OE reprograms both the "E" setting and the "S" setting, making Sport much faster than the original Sport and the tuned "E". I can now drive my E350 like my previous C43 AMG (V8) -- not the C55 though. With the tune I am satisfied with the car and find it to be a great sporty but sedate sedan.
Note, the ECU has to be removed and sent to OE in CA. It is extremely easy to remove. No tools are required really, only a flat head screwdriver for convenience. I could not find a tuner that was able to tune our direct injected gasoline E350 engine remotely with a programmable OBDII tool. Many more recent models can be tuned that way but, unless you guys find it, ours can't. With overnight shipping, OE tunes and overnights your ECU back to you the same day they receive it, so you will only be without your car for 2 days.
Good luck.
Note, the ECU has to be removed and sent to OE in CA. It is extremely easy to remove. No tools are required really, only a flat head screwdriver for convenience. I could not find a tuner that was able to tune our direct injected gasoline E350 engine remotely with a programmable OBDII tool. Many more recent models can be tuned that way but, unless you guys find it, ours can't. With overnight shipping, OE tunes and overnights your ECU back to you the same day they receive it, so you will only be without your car for 2 days.
Good luck.
Thread Starter
Newbie
Joined: Jan 2017
Posts: 10
Likes: 0
2014 E350 Sport 4matic
I hear you and did the same research. All I found was tuning. So I purchased a tune from "OETuning" for my 2014 E350. Check out their claims of a 23 ft/lb increase in torque and a 23 hp increase after the tune: http://www.oetuning.com/products/mer...z-e350-3-5-gdi . While these numbers aren't spectacular, their tune really transformed my car. It is a lot more fun to drive, accelerates quite a bit faster and shifts more aggressively. The best news is, OE reprograms both the "E" setting and the "S" setting, making Sport much faster than the original Sport and the tuned "E". I can now drive my E350 like my previous C43 AMG (V8) -- not the C55 though. With the tune I am satisfied with the car and find it to be a great sporty but sedate sedan.
Note, the ECU has to be removed and sent to OE in CA. It is extremely easy to remove. No tools are required really, only a flat head screwdriver for convenience. I could not find a tuner that was able to tune our direct injected gasoline E350 engine remotely with a programmable OBDII tool. Many more recent models can be tuned that way but, unless you guys find it, ours can't. With overnight shipping, OE tunes and overnights your ECU back to you the same day they receive it, so you will only be without your car for 2 days.
Good luck.
Note, the ECU has to be removed and sent to OE in CA. It is extremely easy to remove. No tools are required really, only a flat head screwdriver for convenience. I could not find a tuner that was able to tune our direct injected gasoline E350 engine remotely with a programmable OBDII tool. Many more recent models can be tuned that way but, unless you guys find it, ours can't. With overnight shipping, OE tunes and overnights your ECU back to you the same day they receive it, so you will only be without your car for 2 days.
Good luck.
interesting find, thanks! And like the other guy said, would this void your warranty? I guess if I that maybe new exhaust, i can hopefully get close to my goal.
Thread Starter
Newbie
Joined: Jan 2017
Posts: 10
Likes: 0
2014 E350 Sport 4matic
You can do air filters and a custom catless downpipe... but I doubt there's any demand for a ECU tune or anything like that to make it more powerful... some people use SprintBooster to help with the throttle response and it seems to be good enough for them. For $300 or whatever, it's not a bad thing to try. I tried it on my Civic back in the day and I was able to spin tires all the way through second gear with my 1.8L base model lol
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Super Member
Joined: Feb 2013
Posts: 580
Likes: 62
From: Maryland
2013 E550 4Matic
Not sure for the V6 model, but the the way the filters sit in the airboxes on the V8s, the OEM filters block some of the air flow. I have the UPD intake kit on mine, which is basically a spacer that pulls the filter out of the opening... gains are fairly minimal, but I like the peace of mind that my intakes are getting the best flow of air possible.
There are trade offs for everything. You could do high-flow cats to pass inspection, but the most power gains would be from going catless.
There are trade offs for everything. You could do high-flow cats to pass inspection, but the most power gains would be from going catless.
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MBWorld Fanatic!
Joined: Feb 2004
Posts: 1,001
Likes: 37
From: NY
2014 E350 4Matic
Headers can help but usually only if you remove or change the OE cat to a highflow cat. On the 350 engine I doubt changing the headers or cat back exhaust will make much of a difference in anything but sound. Exhaust changes are obvious and will cause warranty problems.
After market air filters can help, but usually only add convenience not performance. They only make a noticeable difference if other intake modifications are also made or you have a forced induction car. My K&N's may or may not have added to my 'tune' -- can't tell on the E350. On my C55 with the larger, carbon Renntech Airbox and ported throttle control unit, the K&N's made a cumulative difference.
