SLK32 AMG (R170) 2001 - 2004: Discuss the SLK32 AMG.

SLK 32 AMG Upgrades

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Feb 22, 2008 | 04:49 AM
  #1  
perpetual's Avatar
Thread Starter
Newbie
 
Joined: Feb 2008
Posts: 1
Likes: 0
slk 32 amg
SLK 32 AMG Upgrades

Hi all,

I am about to purchase my very first Merc I have opted for the slk 32 amg - as it's got a decent 2nd hand price over here in the UK especially since the release of the r171 and upgrades to the engine are much more affordable.

I plan on having the following upgrades done immediatly: I have rough estimates for the increase in bhp as a result but I was wondering if someone with experience would be able to confirm these stats and tell me what sort of improvement will I be looking at on the 0-60mph time.

Thanks:

Upgrades as follows: (Max estimate)

Kleeman Stage 1ECU Upgrade and Speed Delimiter & Pulley: +50bhp

K&N High Flow Air Filter: +4bhp

Sprintbooster: ?bhp

Schrick Performance Camshafts: +30bhp

High Performance Manifold Upgrade: +15bhp

Sports Free-Flow Catylic Converter: +10bhp


So I'm being told roughly an extra 100bhp from the standard ?360? so 450~bhp in total.

Is that a realistic performance increase and eitherway what sort of 0-60 time improvement would I be looking it.

Stylistically I am adding a slr bonnet and the diablo doors - I am also looking for some custom interior work however there are few companies it seems that offers that in the UK. So any help on that front is also appreciated.

Also, is it worthwhile upgrading the suspension or breaks? - Or is the standard amg equipment fine?

Last edited by perpetual; Feb 22, 2008 at 05:59 AM.
Reply
Old Feb 22, 2008 | 06:16 PM
  #2  
jet1's Avatar
Junior Member
 
Joined: Nov 2007
Posts: 25
Likes: 0
minicooper s, jeep, ml 55, mbz 600 sl
but why..?

Reply
Old Feb 23, 2008 | 06:46 PM
  #3  
Tuskir's Avatar
Senior Member
 
Joined: Sep 2006
Posts: 348
Likes: 1
I would not spend more than 3-4k for upgrades for this car. Just get the basics like pulley/ecu and headers. The other stuff is not worth it IMO and will give you very minimal gains for the money. 400hp should be plenty for that car and you'd be looking at 0-60 in around 4.3 seconds with the right tires and 1/4 mile in mid-high 12's. It is worth it to upgrades the brakes. Just don't get carried away with blowing so much money into a cheap car, otherwise you will regret not getting a nicer car since the beginning.

Originally Posted by jet1
SLK32 is a very decent car for the money and can be very fast with upgrades. In the US, you can buy one for around $20,000 and mod it to slightly over 400hp with about 3-4k more. Very good roadster for the money, although personally, I would probably get something like a BMW M3 or even CLK55 for $10,000 more.

Last edited by Tuskir; Feb 23, 2008 at 06:50 PM.
Reply
Old Feb 26, 2008 | 03:05 AM
  #4  
Mu9enx's Avatar
MBWorld Fanatic!
 
Joined: Aug 2007
Posts: 3,560
Likes: 2
From: Sacramento/San Gabriel/Riverside
01' C32o
just to help you out, sprint booster does not add any horsepower.
Reply
Old Feb 26, 2008 | 01:23 PM
  #5  
SteveL's Avatar
Super Member
 
Joined: Nov 2001
Posts: 560
Likes: 0
C43, SLK32, CLK63 Black Series
I think +50 from ECU and pulley is pretty optimistic. I'd expect more like +25.

The biggest improvement in 0-60 time you'd see is with an LSD. The car already has more than enough hp to break the rear tires loose. With an LSD you'd get both rear wheels working instead of just one. The only option for an LSD on an SLK32 is a Phantom Grip, http://www.phantomgrip.com/. They do have an application for the SLK32.

Last edited by SteveL; Feb 26, 2008 at 01:27 PM.
Reply
Old Feb 26, 2008 | 05:05 PM
  #6  
Addicted2Speed's Avatar
MBWorld Fanatic!
 
Joined: Sep 2006
Posts: 1,049
Likes: 1
From: Miami, FL
Lotus Elise SLK55
Originally Posted by SteveL
I think +50 from ECU and pulley is pretty optimistic. I'd expect more like +25.

The biggest improvement in 0-60 time you'd see is with an LSD. The car already has more than enough hp to break the rear tires loose. With an LSD you'd get both rear wheels working instead of just one. The only option for an LSD on an SLK32 is a Phantom Grip, http://www.phantomgrip.com/. They do have an application for the SLK32.
All you really need is some gripier tires, like Toyo Proxes RA1
Reply
Old Feb 26, 2008 | 08:27 PM
  #7  
l3iGD's Avatar
Senior Member
 
Joined: Jul 2007
Posts: 471
Likes: 1
From: Columbus Ohio, FL
AMG
Originally Posted by SteveL
I think +50 from ECU and pulley is pretty optimistic. I'd expect more like +25.

The biggest improvement in 0-60 time you'd see is with an LSD. The car already has more than enough hp to break the rear tires loose. With an LSD you'd get both rear wheels working instead of just one. The only option for an LSD on an SLK32 is a Phantom Grip, http://www.phantomgrip.com/. They do have an application for the SLK32.
Hey SteveL,
Do you know anyone who has used this 'phantomgrip' LSD on a SLK32? $500 seems pretty decent. Is this high quality? How much of a difference do you see it to make?
Reply
Old Feb 26, 2008 | 11:52 PM
  #8  
c32used's Avatar
MBWorld Fanatic!
15 Year Member
Photogenic
Photoriffic
Liked
 
Joined: Feb 2006
Posts: 6,213
Likes: 8
LET C32 2002
Originally Posted by SteveL
I think +50 from ECU and pulley is pretty optimistic. I'd expect more like +25.
+1
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

7 Craziest Things AMG Gas Ever Built

 Verdad Gallardo
story-1

New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

 Verdad Gallardo
story-2

6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

 Verdad Gallardo
story-3

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-4

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-5

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-6

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-7

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-8

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
story-9

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

 Verdad Gallardo
Old Feb 26, 2008 | 11:53 PM
  #9  
c32used's Avatar
MBWorld Fanatic!
15 Year Member
Photogenic
Photoriffic
Liked
 
Joined: Feb 2006
Posts: 6,213
Likes: 8
LET C32 2002
Originally Posted by l3iGD
Hey SteveL,
Do you know anyone who has used this 'phantomgrip' LSD on a SLK32? $500 seems pretty decent. Is this high quality? How much of a difference do you see it to make?

I been told its a budget LSD compared to Quaife LSD...
Reply
Old Feb 26, 2008 | 11:57 PM
  #10  
c32used's Avatar
MBWorld Fanatic!
15 Year Member
Photogenic
Photoriffic
Liked
 
Joined: Feb 2006
Posts: 6,213
Likes: 8
LET C32 2002
Originally Posted by perpetual
Stylistically I am adding a slr bonnet and the diablo doors - I am also looking for some custom interior work however there are few companies it seems that offers that in the UK. So any help on that front is also appreciated.

Also, is it worthwhile upgrading the suspension or breaks? - Or is the standard amg equipment fine?
Pics please of the final product...
Reply
Old Feb 27, 2008 | 08:46 PM
  #11  
SteveL's Avatar
Super Member
 
Joined: Nov 2001
Posts: 560
Likes: 0
C43, SLK32, CLK63 Black Series
Originally Posted by Addicted2Speed
All you really need is some gripier tires, like Toyo Proxes RA1
I bet a stock SLK32 or especially a modified one will still have absolutely no problem braking the tires loose, especially if you brake torque a bit.
Reply
Old Feb 27, 2008 | 08:48 PM
  #12  
SteveL's Avatar
Super Member
 
Joined: Nov 2001
Posts: 560
Likes: 0
C43, SLK32, CLK63 Black Series
Originally Posted by l3iGD
Hey SteveL,
Do you know anyone who has used this 'phantomgrip' LSD on a SLK32? $500 seems pretty decent. Is this high quality? How much of a difference do you see it to make?
I know of one other person besides myself who has one installed. He hasn't had any problems with his that I am aware of. My car is still in LA getting some mods so I haven't driven with it yet but the couple of guys who have driven it like it. I'll let you know when I get it back. It should at least be good for a couple of tenths to 60.

Last edited by SteveL; Feb 27, 2008 at 08:51 PM.
Reply
Old Feb 27, 2008 | 08:50 PM
  #13  
SteveL's Avatar
Super Member
 
Joined: Nov 2001
Posts: 560
Likes: 0
C43, SLK32, CLK63 Black Series
Originally Posted by c32used
I been told its a budget LSD compared to Quaife LSD...
It may be budget but it is the only option. Quaife does not have an application for the 198mm ring gear in the SLK32, period. You might be able to some how get a Quaife to work but I'd estimate at least $4k or maybe even $5K to get it to work unless you can do the work yourself and even then, it would be at least $2500.

If Quaife had an application for the SLK32, I would have gone for it.
Reply
Old Feb 27, 2008 | 08:55 PM
  #14  
SteveL's Avatar
Super Member
 
Joined: Nov 2001
Posts: 560
Likes: 0
C43, SLK32, CLK63 Black Series
Originally Posted by perpetual
Also, is it worthwhile upgrading the suspension or breaks? - Or is the standard amg equipment fine?
If you are going to add 75 hp to a car, it is definitely worth upgrading the brakes and suspension.
Reply
Old Feb 28, 2008 | 01:41 PM
  #15  
430's Avatar
430
Super Member
 
Joined: Oct 2002
Posts: 828
Likes: 0
From: Atlanta, GA
SLK32
Steve is correct.

Making the diff work in the SLK32 is no small feat. You would need to find a differential that fits a Quafie and then also fits our cars and hopefully the drive shaft. Then you have the challenge of finding new axels that fit the new differential and are short enough to connect to the hubs. Then you have the retaining clips for the axels.

You could easily spend $4k + the cost of the Quafie and have something that does not fit.

It can be done if you have enough money and time.

The quafie is worth every penny. It is superior to the Phantom grip in every way and would be the only way to go if they made one that would fit our car.

Stickier tires unfortunatly are not the answer. It is very easy to spin stikier tires than the Toyo RA1's.
Reply
Old Feb 28, 2008 | 01:47 PM
  #16  
430's Avatar
430
Super Member
 
Joined: Oct 2002
Posts: 828
Likes: 0
From: Atlanta, GA
SLK32
I would disagree with Steve on the Brakes and the Suspension.

The stock brakes are great for 99.9% of the people whether or not they have increased the perfomance of the car. If you track your car and encounter brake fade then maybe you want to consider upgrading to Brembo, Stoptech, etc. Otherwise I would just swap the fluid and brake pads.

I added RENNtech springs to my car. They give it a nice little drop and make the suspension a little firmer. Unless you are changing springs for cosemetic reasons I would put it lower on my list.

The biggest limiting factor of this car is usually the driver.

If your springs or shocks are worn and need replacing I would spend the extra money to upgrade the springs and shocks at that time.
Reply
Old Feb 28, 2008 | 07:23 PM
  #17  
SteveL's Avatar
Super Member
 
Joined: Nov 2001
Posts: 560
Likes: 0
C43, SLK32, CLK63 Black Series
Originally Posted by 430
I would disagree with Steve on the Brakes and the Suspension.
I didn't say a necessary requirement but still worth it. I think lowering the car from an appearance point of view is definitely worth while.
Reply
Old Feb 28, 2008 | 11:59 PM
  #18  
l3iGD's Avatar
Senior Member
 
Joined: Jul 2007
Posts: 471
Likes: 1
From: Columbus Ohio, FL
AMG
Originally Posted by SteveL
I didn't say a necessary requirement but still worth it. I think lowering the car from an appearance point of view is definitely worth while.
If it were you, how would you lower a car keeping in mind you wouldn't want to take away from performance? Also, how do you all feel the multispoke r171 SLK55 wheels would look on a SLK32?
Reply
Old Feb 29, 2008 | 01:54 AM
  #19  
SteveL's Avatar
Super Member
 
Joined: Nov 2001
Posts: 560
Likes: 0
C43, SLK32, CLK63 Black Series
Originally Posted by l3iGD
If it were you, how would you lower a car keeping in mind you wouldn't want to take away from performance? Also, how do you all feel the multispoke r171 SLK55 wheels would look on a SLK32?
Lowering springs are really the only way to make a significant change. I have Renntech springs and with Koni yellow adjustable sport shocks. You can adjust compression but not rebound but at least there is some adjustment. Eibach lowering springs would also be fine and not too expensive.

On the wheels, I have Renntech Monolite 10 spoke wheels which I think look pretty good. Most of the the R171 wheels will look good on the SLK32.
Reply
Old Feb 29, 2008 | 01:54 PM
  #20  
430's Avatar
430
Super Member
 
Joined: Oct 2002
Posts: 828
Likes: 0
From: Atlanta, GA
SLK32
Like Steve I am running the RENNtech springs. They lower the car nicely but are a bit soft in my book. Maybe a set of Koni's would round out the application.

If I had to do it over I would probably go ahead and get the KW Variant 2's for the car. They just were not available when I purchased everything.

I really like the look and weight of the RENNtech monolite wheels.

The R171 wheels don't look bad on the car but for me they are too heavy to be considered an upgrade.
Reply
Old Feb 29, 2008 | 03:56 PM
  #21  
l3iGD's Avatar
Senior Member
 
Joined: Jul 2007
Posts: 471
Likes: 1
From: Columbus Ohio, FL
AMG
430 I agree but my budget doesn't accommodate Renntech wheels ATM. :P Can I see a pic of your car SteveL?
Reply
Old Feb 29, 2008 | 04:29 PM
  #22  
SteveL's Avatar
Super Member
 
Joined: Nov 2001
Posts: 560
Likes: 0
C43, SLK32, CLK63 Black Series
Originally Posted by l3iGD
430 I agree but my budget doesn't accommodate Renntech wheels ATM. :P Can I see a pic of your car SteveL?
Some links for you...some of these are pretty old. My grill is different now and I have a stubby antenna and a few other changes.

http://www.slk32.com/pages/picturega...s/Image47.html
http://www.slk32.com/pages/picturega...s/Image43.html
http://www.slk32.com/pages/picturega...s/Image38.html
http://www.slk32.com/pages/picturega...s/Image46.html
Reply
Old Mar 1, 2008 | 03:31 AM
  #23  
l3iGD's Avatar
Senior Member
 
Joined: Jul 2007
Posts: 471
Likes: 1
From: Columbus Ohio, FL
AMG
That looks really good SteveL, I like those monolites.. Wanna sell em ?
Reply
Old Mar 1, 2008 | 08:16 PM
  #24  
c32used's Avatar
MBWorld Fanatic!
15 Year Member
Photogenic
Photoriffic
Liked
 
Joined: Feb 2006
Posts: 6,213
Likes: 8
LET C32 2002
Originally Posted by SteveL
Reply
Old Mar 2, 2008 | 03:38 PM
  #25  
430's Avatar
430
Super Member
 
Joined: Oct 2002
Posts: 828
Likes: 0
From: Atlanta, GA
SLK32
Nice pictures Steve. I really like the one with all the parts laid out in front of the car.
Reply


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 07:12 PM.

story-0
7 Craziest Things AMG Gas Ever Built

Slideshow: Sometimes AMG builds fast sedans. Other times, it builds twin-turbo V12 land missiles and six-wheeled off-road monsters.

By Verdad Gallardo | 2026-05-26 17:59:58


VIEW MORE
story-1
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

Slideshow: Mercedes-AMG's new electric GT 4-Door Coupe trades combustion for software, synthetic noise, and more than 1,100 horsepower.

By Verdad Gallardo | 2026-05-20 20:08:15


VIEW MORE
story-2
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-3
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-4
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.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-5
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-6
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-7
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-8
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-9
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE