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Performance MODS for the R171

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Sticky Post your exhaust mod sound clips/vids here!
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8K
 by HR55
Mods for FL SLK200
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 by Delucas
LSD QUAIFE
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 by DHamner
My Carbon Fiber Diffuser arrived today! Install pics start post 37
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 by jbanks15
MOMO steering wheel hubs
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 by Slkuk200
R171 350 ECU Tuning?
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473
 by i860
What Size Spacers for SLK55?
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 by LeonardoDaBenz
BRAKE UPGRADE
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N/A
SLK55 Eurocharged tune
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 by Paradox
My Kleemann Supercharger adventure (Pics/vids all over the thread)
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 by jet_fl
Strong exhaust fumes with performance exhaust
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 by jbanks15
headers and cat delete tune surgery question
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 by jbanks15
Exhaust pops on slk 350
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 by i860
Vented Hood
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 by osi
Intake dyno shootout?
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 by jet_fl
Is there a factory LSD diff option ?
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 by DHamner
Remember me? My Renntech Supercharger journey is long!
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 by Grip-Grip
76MM Throttle body- or close to it
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790
 by lgaff
Improves engine response
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 by Benny
SLK Brabus 6.1
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917
 by Delucas
SLK R171 200 M271 ECU Tuning Issues
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538
 by solifidist
Headers
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 by lgaff
help needed best mods for 350 R171
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 by jbanks15
What modification is this, X-pipe? [pics inside]
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 by Merc55
H Pipe wanted over X Pipe!
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 by Joe Mack
Intake Build for SLK55
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 by ZeroZero
Supercharger Query
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714
 by Lioninstreet
ECU odb tuner ? and they say it on sale.
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420
 by i860
Here it is !
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36
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 by curro101
Looking for feedback on suspension upgrades - SLK55
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 by jet_fl
X-Pipe
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331
 by 55russamg
Finally have my slk55 back
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690
 by moutine
R171 350 exhaust upgrade
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 by Davyd1975
Pulley change m271 r171
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 by kotsoum
My LSD (Limited Slip Differential) adventure begins
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47
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 by jet_fl
My first Performance Mod, totally down the drain...
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 by LeonardoDaBenz
Performance MODS for the R171 Tuning and Performance modifications for your SLK
11.5K posts
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