Thermostat Tube – Replacement for S65 E9X M3 cooper S Active Autowerke is able to

Active Autowerke is able to improve on the factory mid-pipe by increasing the flow and removing the two sets of resonators

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Active Autowerke BMW X3M S58 Downpipes

Noticeable gains have been measured on the Active Autowerke Mustang Chassis dyno with a 12+ RWHP when adding this X Pipe to our Signature exhaust system and as much as 10+ RWHP when used to the BMW stock exhaust

you should consider our equal length midpipe plus our Maad Maxx rear exhaust

Thermostat Tube – Replacement for S65 E9X M3 cooper S Active Autowerke is able toCNC machined coolant water thermostat bypass to improve coolant water flow through the engine for increased cooling on and off the track. Extensively tested on the One Lap of America 2010 event on an Active Autowerke supercharged E90M3. Also used on Grand AM prepared E92 M3 race cars. Easy plug and play installation. Hard coat anodized for long life and reliability. year 2007,year 2007 make bmw,year 2007 make bmw model m3,year 2008,year 2008 make