FS: Rentech Shorty Headers for M156 AMG, bolt-on 16HP/16TQ
RENNtech Shorty Headers
For M156 C63, E63 & other M156 AMG...
http://www.renntechmercedes.com/www/node/193
$999 Shipped OBO
These are a simple bolt on and add 16HP & 16TQ

That extra torque is most noticeable in the midrange.
It also improves the engine sound a bit.
See my before and after Dyno.
(Yes, ACG's Dyno reads real low
)Removed from my 10 E63.
Were on car for about 12K miles.
Car was sold, so they are not needed any more.
No, I did not remove them to get Long Tubes

To me, these were perfect, as they gave noticeable gains and are practically invisible to the dealers.
Anyone would think these are a factory part.
Recommended to buy new Exhaust Manifold Gaskets & Nuts for installation (studs can stay).
(16) 0029901554 - Nut, Exhaust Manifold
(x) 0019906814 - Stud, Exhaust Manifold (optional)


*** SOLD *** SOLD *** SOLD *** SOLD *** SOLD ***
Last edited by lunarx; Apr 16, 2014 at 09:34 PM. Reason: SOLD
I will have the following parts drop shipped to you (if you buy the headers):
(18) 0029901554 - Nut, Exhaust Manifold*
(1) 0019906814 - Stud, Exhaust Manifold *
*I threw in 2 spare nuts and 1 stud (just for Murphy).
Last edited by lunarx; Apr 8, 2014 at 04:08 PM.
RENNtehc has them listed for that application:
http://www.renntechmercedes.com/www/node/277
The pics on RENNtech show a one piece flange.
Mine have 4 individual flanges (1 per port).
I can't say which is their current design.
Nevertheless, it looks like they use the same part number for all M156 applications.
The Dyno Chart and RENNtech product sheet are PDF attachments, at the bottom of my original post.
Let me know if you can see them or not.
For additional reference, the W219 product sheet, is attached at the bottom of this post.
Last edited by lunarx; Apr 9, 2014 at 04:32 PM.
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Thanks to all for your interest.
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