Matt_535i

I'm interested in improving the performance of my 535i and wanted to get some recommendations of simple, relatively cheap, and safe mods that I could do to my car. Two options I've found are the Split Second Turbo Tuner and the Sprintbooster.

I'm leasing my 535i, so I need to make absolutely sure that none of my mods will invalidate my warranty, and can easily be removed when I turn the car in.

Here are my questions:
- Which of these mods is the best, if I choose only one?
- If I get both, will they work well together, or do they pretty much do the same thing?
- Are there any other performance mods (given my criteria above) that are a better option.

Any advice, feedback, comments would be most welcome.

Thanks!

Trinity Autosport

1. Split second Turbo Tuner (I can get you it)
2. GET BOTH! They will work GREAT together! There is a group buy going on the SB's http://forums.e60.net/index.php?showtopic=52619
3. NO (not for the $$$)

Let me know if your intereseted in the Procede or the Turbo Tuner.

Matt_535i

I am definitely interested in the Turbo Tuner. Have you got one? If so, how is it on the 535i? Also, how did you install it? I'm not sure where the TMAP sensor is located on the 535i. What is the Procede?

Thanks...