When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
So just how fast are these CLS550 BiTurbos with a tune/exhaust? (1/4 mile)
I'm curious just how fast these BiTurbos are with a tune/exhaust and any other common bolt ons in the 1/4 mile.
I'm looking to replace my E55 after 6 pretty reliable years with something a bit newer, that's still fast, has decent maintenance costs (I do most of my own work), and a lot of class and good looks for a reasonable price. The BiTurbo AMG's are out of my price range for now but I have the itch for a new car already. I've also considered a CTSV as well but it just doesn't seem to have the presence of a nice Merc.
I welcome any input on these cars performance wise or in general.
I'm getting my 13 CLS550 4Matic Weistec ECU tuned. Already dropped my car at the shop, the tech had to ship my ECU back to Weistec to get it flashed. Stock 402 HP, and expecting 540 HP+ and 614 TQ after the tune. I have also installed ''speeddriven'' high flow 200 cell downpipes, removed muffler silencers and resonators, but kept my mufflers to avoid drone on HWY. I'm getting my car back in a week. Let's wait and see the result.
Weistec tune 1500 + 240 Labor
Speed driven DP 1500 + 300 labor(just bought it less than a month from their web, but now their web doesn't work at all)
not sure about 1/4 mile, but 0-60 should be under 4 sec where stock CLS550 4matic is rated at 4.6.
PCCLS:
What all is involved with changing to the speed driven downpipes (I do have a good muffler shop in town)? Would that be a better option than hollowing out the cats (and does anything need to be done with the O2 sensors? any check engine light issues?) I recently removed the resonators and am amazed by the sound and now I think I need to keep tuning (I unfortunately have minimal car knowledge). I am considering adding the electric exhaust valves in near future as well and plan on getting the eurotech ECU after I finish with these mods.
PCCLS:
What all is involved with changing to the speed driven downpipes (I do have a good muffler shop in town)? Would that be a better option than hollowing out the cats (and does anything need to be done with the O2 sensors? any check engine light issues?) I recently removed the resonators and am amazed by the sound and now I think I need to keep tuning (I unfortunately have minimal car knowledge). I am considering adding the electric exhaust valves in near future as well and plan on getting the eurotech ECU after I finish with these mods.
Thanks in advance
So what you have described sound like you are going for catless/straight downpipes, and by doing this will definitely throw a check engine light, and void your MF warranty. Most muffler shops wouldn't install aftermarket downpipes, so you need to find a tuning shop to do that. my high flow 200 cell downpipes does have one O2 sensor hole on each pipe, so no code for mine, but the car does run little rich before engine warmed up, so a tune is highly recommended. For electric exhaust valves...... I would say it's just for fun unless you go with full exhaust system like FI exhaust. It would sound amazing, but it costs like 5k.
Wow, just checked the FI exhaust page.....sick! A little to expensive to put on a 2013 car though. There is a post on here of an after market electric exhaust valve that would just have an on and off (from the picture seems like a fairly easy install as well)....so you don't think that is a good in-between option? Maybe I will just forget this and go with something similar to what you have and then tune immediately after.
Wow, just checked the FI exhaust page.....sick! A little to expensive to put on a 2013 car though. There is a post on here of an after market electric exhaust valve that would just have an on and off (from the picture seems like a fairly easy install as well)....so you don't think that is a good in-between option? Maybe I will just forget this and go with something similar to what you have and then tune immediately after.
I'm not sure which section you gonna place your electric valves cuz if you don't do it right, it's gonna sound crappy. I'm gonna pick up my ride in couple days, then I will post my dyno result and exhaust sound.
I'm getting my 13 CLS550 4Matic Weistec ECU tuned. Already dropped my car at the shop, the tech had to ship my ECU back to Weistec to get it flashed. Stock 402 HP, and expecting 540 HP+ and 614 TQ after the tune.
Weistec tune 1500 + 240 Labor
.
Where do you find the performance improvement specs on their site? All I see is the lists of what they sell with NO information about each product. Seems kinda weird to me...
I'm not sure which section you gonna place your electric valves cuz if you don't do it right, it's gonna sound crappy. I'm gonna pick up my ride in couple days, then I will post my dyno result and exhaust sound.
There is another thread where someone posted a picture of his bypass located just prior to the muffler assembly... I am now just thinking of getting Renntech or other exhaust and not complicating things too much....looking forward to seeing dyno results
Where do you find the performance improvement specs on their site? All I see is the lists of what they sell with NO information about each product. Seems kinda weird to me...
There is another thread where someone posted a picture of his bypass located just prior to the muffler assembly... I am now just thinking of getting Renntech or other exhaust and not complicating things too much....looking forward to seeing dyno results
Someone says before the muffler, some says right after cats. Renntech is pretty good, and for me, I would only choose this one below, but I feel like getting a DP with resonators delete and a nice tune is the best way to increase performance and sound where you don't have to spend large amount of cash.
http://www.dragtimes.com/Mercedes-Be...lip-29583.html
I went from 13.0 stock to 12.1 with a Vivid Racing stage one ECU tune, very happy with results! Totally stock otherwise. VR Tune put me in the number one spot on Drag Times. This was done in Phoenix AZ, with 2500+' DA
Last edited by mikeg4572; Dec 13, 2017 at 05:01 PM.
Do the Downpipes help much? What else is done with the stage 2?
Thanks!
Yes, downpipes allow for more airflow through the turbos. Since the track times were posted we have revised the Stage2 tune for more power output.
More info can be found here:
Yes, downpipes allow for more airflow through the turbos. Since the track times were posted we have revised the Stage2 tune for more power output.
More info can be found here:
Not sure...you might be able to outrun a AMG in the 1/4. NO AMG's have AWD.... I would assume a AWD CLS 550 with aggressive tune will hook up much better at the launch.
Not sure...you might be able to outrun a AMG in the 1/4. NO AMG's have AWD.... I would assume a AWD CLS 550 with aggressive tune will hook up much better at the launch.
I thought all newer AMG’s came stock with AWD. They all have 4matic if I’m not mistaken.
I thought all newer AMG’s came stock with AWD. They all have 4matic if I’m not mistaken.
Think that’s a very recent change. Majority of AMG (except suv) out there had been RWD only. So most CL63 AMG in the wild you’ll meet with be RWD only.
I'm curious just how fast these BiTurbos are with a tune/exhaust and any other common bolt ons in the 1/4 mile.
I'm looking to replace my E55 after 6 pretty reliable years with something a bit newer, that's still fast, has decent maintenance costs (I do most of my own work), and a lot of class and good looks for a reasonable price. The BiTurbo AMG's are out of my price range for now but I have the itch for a new car already. I've also considered a CTSV as well but it just doesn't seem to have the presence of a nice Merc.
I welcome any input on these cars performance wise or in general.
2015 stage 2 DME tune. Muffler delete, single resonator delete, chrome delete, UPD filters. Not much done to the car in terms of internals, the tune came with a module and was all handheld. Car this heavy shouldn’t be moving that fast off the line…seriously impressed with this cars stock internals but you could go even crazier with beefier turbos. Makes about ~600hp crank and 660lbtq. Have bested a lot of fast cars with this, all while getting a cooled massage in this Texas heat🤣
2015 stage 2 DME tune. Muffler delete, single resonator delete, chrome delete, UPD filters. Not much done to the car in terms of internals, the tune came with a module and was all handheld. Car this heavy shouldn’t be moving that fast off the line…seriously impressed with this cars stock internals but you could go even crazier with beefier turbos. Makes about ~600hp crank and 660lbtq. Have bested a lot of fast cars with this, all while getting a cooled massage in this Texas heat🤣
Is that GPS timer even as accurate as a dragy though? Did you brake boost? Because for 600HP crank and 660 pound feet, it should be in the mid 3's. Tuned CLS400's can do 4.0-4.1.
Is that GPS timer even as accurate as a dragy though? Did you brake boost? Because for 600HP crank and 660 pound feet, it should be in the mid 3's. Tuned CLS400's can do 4.0-4.1.
not sure the accuracy, didn’t do the run on a prepped surface just at a red light and did not brake boost. Definitely think it could have been a cleaner run. Even spun a bit bc the road was not all that clean.
not sure the accuracy, didn’t do the run on a prepped surface just at a red light and did not brake boost. Definitely think it could have been a cleaner run. Even spun a bit bc the road was not all that clean.
Ohh, yours is a RWD? I was assuming it was 4Matic. That's why I said it should be getting mid 3's on a proper launch.
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.
