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Performance MODS for the R171 How to make your SLK perform better

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Old 09-02-2007   #1 (permalink)
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Default Kleeman engine upgrades

Hey guys saw on the previous thread about the kleeman upgrades for the 200, I was wondering would you guys happen to know how much I will be looking to spend to do it on my 350 with kleeman, and where can i get it done here in Florida?
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Old 09-02-2007   #2 (permalink)
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It depends on what you are looking for they start from an Ecu upgrade with two drop in filters to a Supercharger.

I am guessing around 15k for the whole setup.
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Old 09-03-2007   #3 (permalink)
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how much HP gains i am looking at with the whole setup?
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Old 09-03-2007   #4 (permalink)
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usually around 380 400 hp is what ive heard. But you would be paying more money for all of that, then sellin the 350 and buying an amg..... And then you can always get more out of it, instead of being maxed out.

But if you were only wanting to do say like 30-40 hp gains, then it would be well worth it!
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Old 09-04-2007   #5 (permalink)
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C'mon, it doesn't make sense to upgrade your 350 when you can buy a used 55 AMG for around $45,000... you'll have more performance, full warranty, and all for less money.
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Old 09-04-2007   #6 (permalink)
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C'mon, it doesn't make sense to upgrade your 350 when you can buy a used 55 AMG for around $45,000... you'll have more performance, full warranty, and all for less money.
I know, that's my dilemma, but I still want a manual. It's not worth modding a SLK350 to be honest, you put in 7-8K for 30-40hp more, that's half the cost of the SC, then add another 7K for the SC, then you can get a SLK55. ECU flashed for $550-700 is the best bet, but then Dan said to not mess with the ECU.
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Old 09-04-2007   #7 (permalink)
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But when you turn your SLK350 into a convertible SUV with 20's and no drop, I'm not sure your car will be performance-oriented. You might flip trying to take a corner too hard. You might as well just put a 75 shot of NOS on top of a ECU upgrade if you want to go the Bratwurst and the Furious route.
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Old 09-05-2007   #8 (permalink)
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i'm a little tired of the "for the same amount of money, you might as well get a slk55 instead" answers. everyone has their own personal, like financial for example, reasons for getting their certain model slk at the time. it's like saying to the slk55 owner, hey you should've gotten ??? instead of upgrading yours.
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Old 09-05-2007   #9 (permalink)
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I understand what your saying mate.

I think its just said because it makes financial sense to be at the top of the factory totem pole before paying a tuner.

But like you said everybody has reasons
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Old 09-05-2007   #10 (permalink)
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I believe part of it is the fun associated with doing the mods, and not necessarily the total cost. In some countries the recurring annual cost in taxes, registration and insurance is prohibitive to get the 55. A modified SLK 200K would come out more cost effective even though the performance may not be better than the 55 itself.

As some has said, "Different strokes for different folks."
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Old 09-05-2007   #11 (permalink)
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the slk55 is the top model-yes, we all know that already. everyone seems to think that performance gains for the other models has to compare to the slk355. what's wrong with trying to make a 200 or 350 perform better than it came from the factory? if no one here has done the kleemann route, i'd suggest looking for a local kleemann dealer/installer in your area to get an idea of how much you're gonna spend for what you want with your car. here is the following list of dealers that i saw on kleemann's website:

Force Fuel Injection
18770 SW 104th Avenue
Miami, FL 33157

Tel: 305.235.6160
Fax: 305.235.4241
Email: info@force-efi.com
Web: www.force-efi.com

Macedo Motorsports
2571 N. Orange Blossom Trail
Orlando, FL 32804

Tel.: 407.246.6511
Fax: 407.246.2415
Contact: Joe Lasko
Emai: macedoms@aol.com
Web: www.macedomotorsports.com
C2 Design
4704 N. Hubert Avenue
Tampa, FL 33614
Contact: Chris Chapas

Tel: 813.223.3744
Fax: 813.876.8064
Email: cchapas@mindspring.com
Web: www.c2dusa.com

Euro Auto Tuning
3387 NW 151 Terrace
Miami Gardens, FL. 33054

Tel: 305-688-9873 Fax: 305-688-9875
Email: info@euroautotuning.com
Web: www.euroautotuning.com

Performance Auto Werks
1320 Capital Circle SW
Tallahassee, FL 32310

Tel: 850.575.0301
Fax: 850.575.0357
Email: troy@nobleupgrades.com


Boulevard Customs, LLC
3063 Tech Drive
St. Petersburg, FL 33716

Tel: 727-540-0700 Fax: 727-540-0711
Web: www.blvdcustoms.com
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Old 09-05-2007   #12 (permalink)
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Perhaps i should define what i mean a little better.

I agree its fine modding the 350/280 with parts like headers or sport cats things that don't cost an arm and a leg but when somebody is prepared to spend thousands and thousands of dollars on mods they might as well upgrade for the same price.

You gain the power and don't get any of the downsides.

The exceptions being countries where the bigger engined models cost massively more for whatever reason like Eddy pointed out.

Tax is the killer i think but in places where they work by emissions and similar upgrading a lower model car to high power levels will normally increase your emissions and as a result of that your running costs to a level higher then the N/A 55.

Fine spend a few k on the cars but when you start talking serious money why not upgrade?
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Old 09-06-2007   #13 (permalink)
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Originally Posted by slktyperice View Post
But when you turn your SLK350 into a convertible SUV with 20's and no drop, I'm not sure your car will be performance-oriented. You might flip trying to take a corner too hard. You might as well just put a 75 shot of NOS on top of a ECU upgrade if you want to go the Bratwurst and the Furious route.
Hey man! Whats up with the insults?! Just coz I put 20's on mine doesnt mean you can go on hating on what I do, remember 19's are just .5 inch smaller around... Who gives u the right to insult me like that... You have always been making comments on me putting 20's... like Ynot always says it depends on what your taste is, to each is own... didnt ur mom tell you if you aint got nothing better to say, dont say anything at all? Or maybe take it to benzworld...
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Old 09-06-2007   #14 (permalink)
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for all the others, Im sorry guys, I just hate it when people give negative/destructive criticism, that puts the whole group down, I mean all the other positive and constructive criticism, I really appreciate but when other people who you talk to coz you value their opinions gives comments like that really pisses me off... He's making this forum like benzworld where everyone just disses on each other... I hope we can make changes and make this a fun and positive forum... Again I apologize to the others reading this post....
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Old 09-06-2007   #15 (permalink)
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Fine spend a few k on the cars but when you start talking serious money why not upgrade?
I agree, it's about value for the money, each country is different, I respect that, if you want to mod anything that's fine, it's going to be better than anyone with the same model.

I've spend over $7K so far, I'm planning to spend more but most likely skip on the overprice performance parts for the SLK350. It's cheaper with less downsides with an upgrade, at least in this country. It's what you want in a car that matter's most.

I wanted a manual, something sporty and competent for 4-5 track days a year. Something comfortable and luxurious that I can drive everything. A hardtop convert for safety and the cool factor, the SLK has it all. And I'm happy to be part of this community.

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for all the others, Im sorry guys, I just hate it when people give negative/destructive criticism, that puts the whole group down, I mean all the other positive and constructive criticism, I really appreciate but when other people who you talk to coz you value their opinions gives comments like that really pisses me off... He's making this forum like benzworld where everyone just disses on each other... I hope we can make changes and make this a fun and positive forum... Again I apologize to the others reading this post....
No worries, I'm sure the comments isn't as harsh as it sounded. Or maybe it was the alcohol doing the talking, we all know slktyperice likes to party and drink.
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Old 09-06-2007   #16 (permalink)
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Hey man! Whats up with the insults?! Just coz I put 20's on mine doesnt mean you can go on hating on what I do, remember 19's are just .5 inch smaller around... Who gives u the right to insult me like that... You have always been making comments on me putting 20's... like Ynot always says it depends on what your taste is, to each is own... didnt ur mom tell you if you aint got nothing better to say, dont say anything at all? Or maybe take it to benzworld...
Agreed, but like said i dont think he meant to come off that harsh. To each their own.


Anyway, I agree with dan. If you want to go out and supercharge and 350 and such, and your looking at 10k US dollars, THAN its not worth it, yes go for the amg, and i know that answer is a little repetitive but really it makes the most financial sense, and yes I understand the engine taxes and such. But if ur gunna blow that chunk of money, IMO it would be a better investment to upgrade the car....IF you can.

For me tho, i wish i could get like 330hp out of the car (about a 50hp gain) without spending like 5 grand, cuz then id rather just save it and use it towards a 55.

Im noticing with every MY of the 171, tuners pricers are going up as more people are startin to make a demand for it.... Sigh, i remember when piecha performance muffler was about 400 euro, no its like 1000! I know i should of bought it then!
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Old 09-11-2007   #17 (permalink)
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I understand what your saying mate.

I think its just said because it makes financial sense to be at the top of the factory totem pole before paying a tuner.

But like you said everybody has reasons
Dan, that is still somewhat subjective, but I understand what you mean. However, I do not think people consider every point of cost.

First off, what price do you put on driving a car with older, ineffecient technology that Mercedes-Benz and AMG have all but abondoned? 3-Valve engines are the past. Sure it's the top of the model line in price, and in performance, but it's older technology then the new 4-valve V6's and V8's.

Driving an SLK55, I barely averaged 11 MPG. An SLK350, 22 MPG is easy. Now, let's take it down for a supercharger, say to 20 MPG with a 6-speed.

At 15,000 miles a year, that's 750 gallons of fuel for a SLK350, and 1,364 gallons for an SLK55. That means, you gotta pump in 614 more gallons of premium into the 5.5L. Using a low price of US$3.35 for premium, that means the SLK55 costs US$2,057 a year more just in fuel.

Drive that car around for 5 years, and you've paid $10,000 more for the SLK55 then the SLK350 with a SuperCharger. Then, add in what you think you'll save in insurance costs, less tickets, and less likely to get stolen being the "lesser model".

Also, you can't put a price on blitzkreiging someone with a "lesser" model car.

All that doesn't matter, really, because it is what you want, and what you like.

It does get tiring hearing people beat the "just buy an SLK55" horse. We're asking for assistance on modifying or adjusting the car we wanted and we love. We don't tell SLK55 owners they would be better off to go buy a Corvette when they ask about modifying an SLK55 with Nitros.
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Old 09-11-2007   #18 (permalink)
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OK to start sorry if this message sounds kinda snappy thats not intentional but I'm stuck in the back of an S class thats frankly about as comfortable as driving to work in a coffin.

Point taken about the engine and yes 3VPC is in the past now but ultimately the old short mag Lee Enfield is also way in the past (production started in 1895/6 i think) but i bet if i gave it a .303 it would still blow your brains out, so age is not so much of a factor to me performance is all that counts and the M113 can perform.

Frankly when i think piss poor performance Corvette springs to mind so i think if somebody where to suggest one to me they would need a bloody good surgeon.

No agruement from me about fuel and insurance they are totally valid points.

The reason i still prefer the 55 option is your moving into a vehicle that is in its lowest possible state of tune so much can be done to it to increase performance further not only that the 5.5 has a long history of supercharging we know the engine is stable in various forms of tune from 300-700 bhp whereas the engines used in the "lesser" model cars as you put it does not have such a history and personally i would like to wait for the engine to mature a little more before i go slapping anything onto it and even then i would want a list of success stories.

Hope my reasoning is conveyed over as i wanted it to be and the above does not sound like a rant.
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Old 09-12-2007   #19 (permalink)
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OK to start sorry if this message sounds kinda snappy thats not intentional but I'm stuck in the back of an S class thats frankly about as comfortable as driving to work in a coffin.

Point taken about the engine and yes 3VPC is in the past now but ultimately the old short mag Lee Enfield is also way in the past (production started in 1895/6 i think) but i bet if i gave it a .303 it would still blow your brains out, so age is not so much of a factor to me performance is all that counts and the M113 can perform.

Frankly when i think piss poor performance Corvette springs to mind so i think if somebody where to suggest one to me they would need a bloody good surgeon.

No agruement from me about fuel and insurance they are totally valid points.

The reason i still prefer the 55 option is your moving into a vehicle that is in its lowest possible state of tune so much can be done to it to increase performance further not only that the 5.5 has a long history of supercharging we know the engine is stable in various forms of tune from 300-700 bhp whereas the engines used in the "lesser" model cars as you put it does not have such a history and personally i would like to wait for the engine to mature a little more before i go slapping anything onto it and even then i would want a list of success stories.

Hope my reasoning is conveyed over as i wanted it to be and the above does not sound like a rant.

Oh it isn't, and you are well noted. As it has been said, we all have our reasons for what we like and what we don't. Some reasons may not have basis in reality.

However, it's just the comment that sometimes it seems like people are pushing their likes onto others by saying "buy a 55". Maybe someone can't afford it, and it makes them feel bad.

Point is, let's be nice about the people who request info and help on their cars, the ones they could afford, the ones they love, the ones they wanted even though they could afford much more, and not tell them they should have gotten, or should get something else.

I'm not singling you out with that comment Dan, it's just easy to reply to a post and my thoughts wander from there.

I do realize the point of the value is valid, and should be made, however, the person who did this post was not asking if he should consider a 55 instead, he was asking about mods to his 350.
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