Mercedes Benz 2014 S550

Engine Parts for Mercedes Benz 2014 S550



Weistec Spark Plug Set M157 / M278
Weistec M157 / M278 spark plugs are designed and manufactured for not only high power applications but also factory replacement. The factory iridium plugs do no...


Weistec High Flow Air Filter Set  M157 / M278
These Weistec filters are compatible with the 5.5 Biturbo and the 4.7 Biturbo (M157 and M278 engines). When analyzing the factory airbox and flow characteristic...
$245.00 $220.50


Weistec M278 ECU Upgrade
540 HORSEPOWER, 715 FT-LBS TORQUE! As an industry leader in tuning and calibration, Weistec Engineering is proud to introduce the much anticipated ECU tune f...
$1,499.99 $1,274.99
RENNtech Intermediate ECU Upgrade M278
Our intermediate level ECU upgrade for the Mercedes M278 engine still offers huge gains in performance across the entire RPM range, but with a slightly reduced ...
RENNtech 550 Sport Package
RENNtech has developed this power packed yet stylistically subtle package specifically for the S550 sedan. RENNtech achieved this with just a few modifications ...