SL-Class (R129) 1990-2002: SL 280, SL 300, SL 320, SL 500, SL 600, SL 60 AMG

SL/R129: Performance Upgrades

Old Mar 3, 2006 | 02:38 PM
  #1  
gdmarques@cox.n's Avatar
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1992 500SL, 1990 Jag XJS V-12 Conv't, 1976 Jag XJ12C, another '76 XJ12C!
Performance Upgrades

I am thinking about 2 performance mods for my '92 500 SL and wanted to know if anyone has an opinion.

First, are performance air filters. I have previously used K&N on my 1990 XJS V-12 with no problems and I perceived a real gain in air flow. I had read on another thread that someone attributed a MAP sensor failure to the use of K&Ns, and since those don't come cheap I'm a little afraid of that. Anyone else use them on an SL without incident? Do they make a difference?

Second, I see a chip on EBAY (a real chip, not a resistor). It replaces the original ECU. Anyone use one of these on a mechanically injected 500 SL?
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Old Mar 3, 2006 | 02:54 PM
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Bigdot's Avatar
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Originally Posted by gdmarques@***.n
I am thinking about 2 performance mods for my '92 500 SL and wanted to know if anyone has an opinion.

First, are performance air filters. I have previously used K&N on my 1990 XJS V-12 with no problems and I perceived a real gain in air flow. I had read on another thread that someone attributed a MAP sensor failure to the use of K&Ns, and since those don't come cheap I'm a little afraid of that. Anyone else use them on an SL without incident? Do they make a difference?

Second, I see a chip on EBAY (a real chip, not a resistor). It replaces the original ECU. Anyone use one of these on a mechanically injected 500 SL?

i have both KandN and the Ebay chip in my SL

do it

i havent had any problems.

i have the almost 1000$ renntech chip in my E500, the ebay chip and the REnntech chip feel almost the same to me.

mark
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Old Mar 4, 2006 | 08:03 AM
  #3  
dafi129's Avatar
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From: Byblos,Lebanon
SL 55 , Infinity FX37, Aprilia Caponord Rally
Try superchips in the UK...I had it in my SL for 2 years with no probs whatsoever.....K&N's are fine...but crazy noise from air intake...
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