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Kleeman header review

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Old Mar 14, 2016 | 12:44 AM
  #1  
LexBrett2's Avatar
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2007 Mercedes E550
Kleeman header review

Just had Kleeman headers installed. Just for fun, thought I would write a review:

1. Initially I couldn't tell much of a difference in terms of power. But after a day or so the car feels like a monster. Not a drastic change but stronger.

2. With windows up could tell much difference in sound. But with Windows down the sound is improved and noticeable. Actually I was revving the car in the garage and my fiancé got pissed off so I guess that's a thumbs up :-)

3. Fit and finish look outstanding in the engine bay.

4. After the install I got a check engine light and pulled a p0030 code. Seems like that is an open circuit for the front o2 sensor. I checked the sensor and it looks banged/bent up, which must have occurred during install. Taking it back to my mechanic Friday. I assume the air-fuel ratio is not optimized, and once it's fixed I will get better performances

5. I'm also cognizant of a potential p0420 code l, but I used an o2 sensor spacer so I hope that will work.

6. Friday I will get the o2 sensor fixed, plus get a second cat delete, as well as bilstein shocks. Then will retune with eurochanged tuner.

Then my creation will be complete wish me luck!
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Old Mar 14, 2016 | 09:55 AM
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2004 Civic Si. FWD for the Win!
I guess no dyno pulls?
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Old Mar 14, 2016 | 01:13 PM
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Originally Posted by tommy
I guess no dyno pulls?

Sorry only the butt dyno :-)
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Old Mar 14, 2016 | 01:52 PM
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2013 C350 Coupe, 2005 C230K Kleemann Sedan, 2013 GLK350 4matic
[QUOTE=LexBrett2;6738041]Sorry only the butt dyno :-

I have the Kleeman header, ECU, and boost kit installed at Kleeman USA in Colorado Springs, CO back in 2007. They gave me before and after dyno performance, which I posted in these forums some time ago. You may have to do a search but its there.

My car is still pulling strong, coming up on 125,000 miles. I couple of issues with the cat and Kleeman took care of me. No codes in about 8 years now.
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Old Mar 16, 2016 | 11:00 PM
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2007 C350 2015 ML400 1968 Ford Mustang
No review is complete without pictures.
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Old Mar 18, 2016 | 12:38 AM
  #6  
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From: DC Metro Area
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Originally Posted by LexBrett2
Just had Kleeman headers installed. Just for fun, thought I would write a review:

1. Initially I couldn't tell much of a difference in terms of power. But after a day or so the car feels like a monster. Not a drastic change but stronger.

2. With windows up could tell much difference in sound. But with Windows down the sound is improved and noticeable. Actually I was revving the car in the garage and my fiancé got pissed off so I guess that's a thumbs up :-)

3. Fit and finish look outstanding in the engine bay.

4. After the install I got a check engine light and pulled a p0030 code. Seems like that is an open circuit for the front o2 sensor. I checked the sensor and it looks banged/bent up, which must have occurred during install. Taking it back to my mechanic Friday. I assume the air-fuel ratio is not optimized, and once it's fixed I will get better performances

5. I'm also cognizant of a potential p0420 code l, but I used an o2 sensor spacer so I hope that will work.

6. Friday I will get the o2 sensor fixed, plus get a second cat delete, as well as bilstein shocks. Then will retune with eurochanged tuner.

Then my creation will be complete wish me luck!




















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