Hello CLK55 owners,
Here is a dyno of the AMS CLK55 headers. Only difference between before & after are the headers (no software changes or etc). These gains are on stock ECU as well. These results are with stock primary cats and high flow secondary cats (both cats still in place, no deleted cats). In addition, Stock Resoantor & stock muffler are still in place as well. The other baseline modification is K&N filters. As you can see the stock manifolds are extremely restrictive and choke off the engines ability to really breathe well (especially at low rpms). The maximum gains were 23.3HP & 25TQ @ the rear wheels.
(Before & after done in identical weather conditions, at the same time of the day, same humidity, and same exact DD dyno for highest level of accuracy).
Thanks
~AMS~