|
Well there are lots of different directions to go, what are your goals? Are you going to go all out or are you just looking for a small performance boost, do you want to look good or just go fast.
- As others have said, skip the exhaust and get a down pipe (catted or uncatted). N55's sound great with stock exhaust and an upgraded DP. Plus the DP is the part of the exhaust that is going to make a difference as far as upgrading performance.
- As far exterior goes I think it's the small, subtle, not too flashy things that go a long way in upgrading the character of a 135i. Grills and a "BMW performance" style spoiler always look good.
- You should consider doing some suspension mods early. With all of the great roads here in Germany you will probably use and enjoy this the most. A good set of tires, and maybe an M3 swaybar are some easy starters.
I'd start with some of the easy look good mods like a set of grills. This will help itch the mod bug while you decide on your power mods.
|