These are 135i / 335i catless downpipes.
In addition to an improving and deepening the exhaust note, these downpipes add power and minimise turbo lag, making the awesome N54 engine even more responsive!
Catless Downpipes Features:
Typical gains will be around 20 – 40bhp depending on other mods
Laser cut Stainless cat-back flanges, and CNC’d Stainless V-Band flanges
100% TIG welded
Set of exhaust gaskets included.
Fits: E9x & E8x (135i & 335i, N54 twin turbo) [Fits both LHD and RHD vehicles]