TTFS E46 CSL ECU Upgrade
The TTFS CSL ECU upgrade is a must for anyone looking to operate using a map sensor. For those who want to convert to the CSL type carbon fiber air box and remove their map MAF sensor, this is the solution. Choose your price depending on the various core exchange options we offer. This option is not intended for S54 motors looking to run a CSL style flap. For customers looking to get the maximum setup and run a CSL flap as well as the rail package, you will need to select the "Oem Snorkel, Flap" option.
We offer custom tuning for an additional cost. Please note that the ECU only comes with the factory CSL tune. Consider adding a TTFS Rail and Map Sensor to get the ultimate all-in-one set up.
Free shipping in the U.S.! International shipping charges apply.