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

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Old 05-27-2008   #1 (permalink)
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Default RENNtech Header sound question...

When/after they are installed, is there much or a change in the sound of the car one could notice? I know it's more about the performance, but the wife drives it daily and the "S.A.F." (Spouse Appreciation Factor) could be jeopardized if it becomes too loud. A little more is OK, and she wouldn't mind- a lot could be an issue.

I'm sure the rest of the exhaust system will do what it's supposed to and muffle it, I'm just curious.

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Old 05-27-2008   #2 (permalink)
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Its definatley marginally louder though mine is very loud because I removed the secondary oem catalytics for a larger 3" 200 cell Kleemann one's, deleted the resonator via a SuperSprint/Carlsson X pipe. I am sure it wont disturb your wife, I hope its slightly louder than being significantly loud as opposed to mine.
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Old 05-27-2008   #3 (permalink)
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Slightly louder isn't a problem. I just know what it did on my other car when I added them...

I could post this as seperate question, but I am going to need new gaskets where the headers meet the heads. Do I use MB gaskets, or do I need RENNtech header gaskets? I assume the latter...
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Old 05-27-2008   #4 (permalink)
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The mount's to the engine will be the same so i don't see why MB gasket's won't work
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Old 05-28-2008   #5 (permalink)
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You need new gasket's for sure, I used the MB one's.
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Old 05-28-2008   #6 (permalink)
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Cool, thanks gang! Now I just need a trusted installer in the bay area.

Wish my dealer would do it...
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Old 05-28-2008   #7 (permalink)
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Checkout lucent motors, I think they are close to you.
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Old 05-28-2008   #8 (permalink)
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Great suggestion on the shop, they look top notch. Sadly they are in the LA (southern calif.) area and I am in the northern california area- between San Francisco and San Jose.

Thank you for the suggestion though!
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Old 06-04-2008   #9 (permalink)
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hey i live at the san jose area.. i know theres one good one called porsche doctor near san fransisco. i want to get mine done too.. we can go together if u want.. i have replaced my resonator with x pipe and its not loud at all.. maybe the cat swap will do.. just pm me if ure interested to go together
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Old 06-04-2008   #10 (permalink)
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i'd like to hear what your car sounds like with that x-pipe install some time. does the Porsche Doctor have a web site? I'd like to check them out. I'm sure they are good, I'm just really particular.

We should meet up!
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Old 06-04-2008   #11 (permalink)
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Quote:
Originally Posted by webslinger View Post
i'd like to hear what your car sounds like with that x-pipe install some time. does the Porsche Doctor have a web site? I'd like to check them out. I'm sure they are good, I'm just really particular.

We should meet up!
I'm local as well, and would be interested in hearing it if you guys end up arranging a meeting.
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Old 06-04-2008   #12 (permalink)
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im free next week... sure lets just go to porsche doctor together.. they dont have a website but some of my friends who have bmw m and porsche all went there to get the job done and they all are satisfied.. so you guys wanna swap number or how? i haven't done this ever so i have no idea.. where do you live bill?? im in cupertino stevens creek in particular
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Old 06-04-2008   #13 (permalink)
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I work/live on the border of cupertino/santa clara/sunnyvale
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Old 06-04-2008   #14 (permalink)
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Hi, don't know if you guys are interested but I have a pair of renntech headers that I purchased before I change my whole exhaust sytem to Super Sprint. The headers where in use for about 5k miles. I had them sent out to Jet- Hot cleaned up and coated them in sterling silver, you can check out what Jet-Hot is about by going to slk world forum and clicking general discussion and go to pg.2 skroll down to jet-hot the hottest hi temp coatings.[my super/sprint headers are in the exact same coating] I'm asking $3500.00 for them,the slk world store is asking $4149.00 with out the jet-hot coating. If interested you can P.M. me thanks.
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Old 06-05-2008   #15 (permalink)
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Question Time Ken...

How did you like the RENNtech headers before you swapped 'em out?
Did you get an MB dealer to do the installs or did you have to go to a 3rd party shop?
Could you feel the performance gain having them before moving to the SS setup?
What prompted you to move to the SuperSprint full headers?
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Old 06-05-2008   #16 (permalink)
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Quote:
Originally Posted by webslinger View Post
Question Time Ken...

How did you like the RENNtech headers before you swapped 'em out?
Did you get an MB dealer to do the installs or did you have to go to a 3rd party shop?
Could you feel the performance gain having them before moving to the SS setup?
What prompted you to move to the SuperSprint full headers?
I am not rainning on anyones parade but do look at the Kleemann headers they are the cheapest on the market and are that of highquality, I am very satisfied with them as they add maximum performance in being a long tube headers that eliminate the primary catalytics which I assume RENNtech's dont and that is probably why our friend Kevin swapped for the offroad or sports Longtube SuperSprints.
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