[AL Chen]

I owned a 2013 BMW F20 M135i. Only replace stock downpipe to RushPlux Performance Hybrid Cat downpipe. Besides RushPlux downpipe all stock. I'm driving over couple of months and feeling better and better. Engine temper getting lower, accelerating faster and exhaust's sound louder but good! City tour, high way and in any condition no engine light trigger. Sharing with all bimmers.