SprintBooster
Thread Starter
MBWorld Fanatic!
Joined: Apr 2005
Posts: 1,990
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From: Bay Area
'10 Porsche Turbo PDK, 500e, GL450
SprintBooster
Okay just installed it and I got to say I love it. While it might seem a bit for difficult to modulate ... I feel that its something that just takes a little time to get used to. I took off the sneakers and went to more of driving shoe. 
My initial take is that because we use a 7 speed tranny, that we can't reset manually, this allows you to program the tranny as if your driving the car hard all the time. This makes the car shift faster and hold gears longer. This throttle response definitely seems improved. I have a car with a lot of HP and torque but if the tranny programming is slow (from driving in traffic etc) the throttle response is definitely slower. It takes a few hard runs to get the tranny to be in more aggressive mode. With the Sprintbooster I'm in aggressive mode all the time.
I can't believe a few wires makes such a big difference. This mod is only a couple hundred bucks ... DO IT!
Now as to where I purchased the SprintBooster ... I got from SLKfans and I'm glad it finally arrived. It did take a long time and there was some confusion on the shipping but at least it got here. Since SLKfans is just doing this as a favor to others, I just wanted to express my thanks.
As to the install ... EXTREMELY easy.
My initial take is that because we use a 7 speed tranny, that we can't reset manually, this allows you to program the tranny as if your driving the car hard all the time. This makes the car shift faster and hold gears longer. This throttle response definitely seems improved. I have a car with a lot of HP and torque but if the tranny programming is slow (from driving in traffic etc) the throttle response is definitely slower. It takes a few hard runs to get the tranny to be in more aggressive mode. With the Sprintbooster I'm in aggressive mode all the time.
I can't believe a few wires makes such a big difference. This mod is only a couple hundred bucks ... DO IT!
Now as to where I purchased the SprintBooster ... I got from SLKfans and I'm glad it finally arrived. It did take a long time and there was some confusion on the shipping but at least it got here. Since SLKfans is just doing this as a favor to others, I just wanted to express my thanks.
As to the install ... EXTREMELY easy.
Last edited by SLK55R; Apr 21, 2007 at 04:27 PM.
MBWorld Fanatic!
Joined: Sep 2004
Posts: 1,498
Likes: 1
From: Dallas
SL65
I couldn't agree more. I couldn't live without my sprintboosters. Give it a few weeks when you're good and used to it then take it out then drive around, you'll think your car is broke. It's night and day.
MBWorld Fanatic!
Joined: Feb 2006
Posts: 1,439
Likes: 2
From: Kuwait City, Kuwait
G55, G500 & SLK55
Good to see you guys enjoying your SLK's, may I ask how much did it cost you and are there instructions online for installation procedure?
Since my SLK55 is modded, I would like to install the Sprint Booster to make the car in aggressive mode.
thank you in advance.
Since my SLK55 is modded, I would like to install the Sprint Booster to make the car in aggressive mode.
thank you in advance.
Thread Starter
MBWorld Fanatic!
Joined: Apr 2005
Posts: 1,990
Likes: 0
From: Bay Area
'10 Porsche Turbo PDK, 500e, GL450
mileage
To be honest I buy 100 octane gas ... I'm not really worried about mileage. I'd assume it has gotten worse though!
It was less than 300 dollars ... install was use a 10 mm socket remove and replace wire ... put back. It took less than 10 mins. Of which most of that was just the removal of the bolt.
It was less than 300 dollars ... install was use a 10 mm socket remove and replace wire ... put back. It took less than 10 mins. Of which most of that was just the removal of the bolt.
MBWorld Fanatic!
Joined: Mar 2005
Posts: 1,164
Likes: 0
From: sac, calif.
'06 slk55
I've thought about this upgrade but have a major concern.
Once in awhile, I swap cars with the wife. Does this thing make it too touchy? I would hate for her to smash into another car when simply trying to park, etc. How about wet conditions?
Again, I'm not worried about me since I'll be used to it... but for my wife that rarely drives it.
Once in awhile, I swap cars with the wife. Does this thing make it too touchy? I would hate for her to smash into another car when simply trying to park, etc. How about wet conditions?
Again, I'm not worried about me since I'll be used to it... but for my wife that rarely drives it.
Thread Starter
MBWorld Fanatic!
Joined: Apr 2005
Posts: 1,990
Likes: 0
From: Bay Area
'10 Porsche Turbo PDK, 500e, GL450
Wifey
yeah its a touch more sensitive and I was losing traction going in reverse a couple times! But it really isn't THAT bad. Its like going from an E320 to a 1999 E55.
I know you have concerns about the wife driving it ... but to not allow yourself this mod because of her ...
. DO IT.
I've been driving it a bit more now and its been raining. I haven't had problems (even with R compound tires) driving smoothly or slowly.
It is absolutely amazing what this mod has done.
I know you have concerns about the wife driving it ... but to not allow yourself this mod because of her ...
. DO IT. I've been driving it a bit more now and its been raining. I haven't had problems (even with R compound tires) driving smoothly or slowly.
It is absolutely amazing what this mod has done.
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Super Member
Joined: Sep 2006
Posts: 772
Likes: 0
From: Bay Area/ NY
07 SLK55, 08 R32
Sorry stupid question... But where are you installing this? Does it have anything to do with the ECU? Is there a DIY somewhere? Im deff going to order one I hate the slow response once I get done driving in traffic through SF.
Thanks!
Thanks!
Super Member
Joined: Sep 2006
Posts: 772
Likes: 0
From: Bay Area/ NY
07 SLK55, 08 R32
Super Member
Joined: Sep 2006
Posts: 772
Likes: 0
From: Bay Area/ NY
07 SLK55, 08 R32
Went down to the dealership today cause the damn FM wont work its just full static.... but they guy actually happend to have a sprintbooster on hand and said he would sell it to me and install it for a total of $350... i thought this seemed kinda high, no?
Super Member
Joined: Jul 2003
Posts: 756
Likes: 19
From: Denver
McLaren 12C Spider | Lamborghini Superleggera | Porsche 997.2 TT | Cayenne TT | AMG GTS
There are three Sprint boosters left from the extended group buy. Is waiting a week, doing a 5 minute install worth $100 to you? If so then I would get the $250 GB SB. If you can't wait and the $100 is no loss to you then be sure you are getting the newer AMG version. Model #: BDD451A2
Super Member
Joined: Jul 2003
Posts: 756
Likes: 19
From: Denver
McLaren 12C Spider | Lamborghini Superleggera | Porsche 997.2 TT | Cayenne TT | AMG GTS
here are the DIY Instructions: https://mbworld.org/forums/w211-amg/192491-sprint-booster-install-instructions.html
Member
Joined: Mar 2005
Posts: 242
Likes: 1
Okay just installed it and I got to say I love it. While it might seem a bit for difficult to modulate ... I feel that its something that just takes a little time to get used to. I took off the sneakers and went to more of driving shoe.
My initial take is that because we use a 7 speed tranny, that we can't reset manually, this allows you to program the tranny as if your driving the car hard all the time. This makes the car shift faster and hold gears longer. This throttle response definitely seems improved. I have a car with a lot of HP and torque but if the tranny programming is slow (from driving in traffic etc) the throttle response is definitely slower. It takes a few hard runs to get the tranny to be in more aggressive mode. With the Sprintbooster I'm in aggressive mode all the time.
I can't believe a few wires makes such a big difference. This mod is only a couple hundred bucks ... DO IT!
Now as to where I purchased the SprintBooster ... I got from SLKfans and I'm glad it finally arrived. It did take a long time and there was some confusion on the shipping but at least it got here. Since SLKfans is just doing this as a favor to others, I just wanted to express my thanks.
As to the install ... EXTREMELY easy.
My initial take is that because we use a 7 speed tranny, that we can't reset manually, this allows you to program the tranny as if your driving the car hard all the time. This makes the car shift faster and hold gears longer. This throttle response definitely seems improved. I have a car with a lot of HP and torque but if the tranny programming is slow (from driving in traffic etc) the throttle response is definitely slower. It takes a few hard runs to get the tranny to be in more aggressive mode. With the Sprintbooster I'm in aggressive mode all the time.
I can't believe a few wires makes such a big difference. This mod is only a couple hundred bucks ... DO IT!
Now as to where I purchased the SprintBooster ... I got from SLKfans and I'm glad it finally arrived. It did take a long time and there was some confusion on the shipping but at least it got here. Since SLKfans is just doing this as a favor to others, I just wanted to express my thanks.
As to the install ... EXTREMELY easy.
No worries, you are welcome.
My sincere apologies for it has taken quite a fair bit of time. Glad you understand the entire process flow especially the slips here and there.
At least for now, I keep sufficient buffer of sprint boosters so that I can ship them immediately, this is a better workaround to avoid any slips in the near future.
By the way, it is $250, ready to ship
You have fun !
Cheers !
Almost a Member!
Joined: Mar 2007
Posts: 70
Likes: 0
From: Baltimore Maryland
slk32 Renntech
Sorry to say that you have lost reputation to several people on this board that I read, not so much as restocking, but not responding to email requests. I hate that myself. I'm sure you do too, if you were buying, even from a friend.
Last edited by jerryxu; May 22, 2007 at 11:24 PM.
Junior Member
Joined: Jan 2007
Posts: 48
Likes: 0
Just received my Sprint Booster...
... and I really can feel the difference. I realize this won't affect my top end, but it really helps off the line. Modulating the throttle is easy enough and the response is definately improved. I'd say $300 well spent. Installation is a no brainer.
Andy
Andy
MBWorld Fanatic!
Joined: Sep 2004
Posts: 1,498
Likes: 1
From: Dallas
SL65
I don't see how. You're not modifying the engine or power output and not changing any system in the car. It's no different than putting rims on the car. It's just a look and feel kind of thing.
Super Member
Joined: Sep 2006
Posts: 772
Likes: 0
From: Bay Area/ NY
07 SLK55, 08 R32
I was thinking the same thing but the women seemed hell bent on the fact that it would... i really didnt think she knew what she was talking about but oh well thank!
Newbie
Joined: Aug 2005
Posts: 17
Likes: 0
Wow where have I been. Well Driving!
Thanks so much for this forum. I must log on more often. The SB on my list. Thanks everyone for the collection of ideas photos and exchange of HiPerf chat. So Glad to hear there are speed freaks like me still around living in the souls of AMG fans. The Buddha
Drive on!
Drive on!
Super Member
Joined: Sep 2006
Posts: 772
Likes: 0
From: Bay Area/ NY
07 SLK55, 08 R32
Went with it... and I love it!!!! The response is deff better I had it done through the dealership the guy was disapointed with it he had installed it on many E55s and an E63 he said with the superchargers you feel it a lot more but i told him there was deff difference and i enjoyed it. 
