BMRBOI 8 Report post Posted August 10, 2017 (edited) Hi team I have placed a non CAT e36 325i exhaust onto my e36 323i. Now the exhaust physically fits fine apart from the exhaust temperature sensor, where the twin exhaust system doesn't have a common collector to weld in the sensor. Sorry I don't have any photos of the exhaust systems so I borrowed some from google. Before you ask, the non CAT exhaust has a better sound than the factory exhaust and the twin exhaust looks nicer. Two logical options to place temp sensor are: The twin exhaust system has a common collector before the muffler but is located 0.7-1m upstream from pervious location (this would give hotter readings I assume), Weld in the sensor to only one pipe but in the same location as originally (whats the issue with this? Would relative temp still be the same with half flow), Or add a merge collector in originally area and weld sensor (expensive option). Hopefully the images explain it better. What do you think is the best option? Thanks, N Edited August 10, 2017 by BMRBOI Quote Share this post Link to post Share on other sites
