Quote:
Originally Posted by janea1207
i am thinking what soft to put in my 340i rwd. MHD stage2 OTS thing is slow, but custom tune could be dangerous (like you wrote "too much boost and fuel). I have no acces to E30, E50, just Ron 98.
What you advice for making my 340i fast? jb4? bm3? mhd?(custom tune or ots map)
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Where are you in France? If you have access to E85 you can blend yourself if you choose. I use 4 x 20L fuel containers and fill each with 13 litres of RON98 then add 7 litres of E85 to each for an E30 blend.
When you purchase the Stage 1 or Stage 2 maps pack from MHD you get a range of tunes for various octane levels including 93 (RON98)
If you want to keep your factory exhaust but more performance I would recommend the MHD Stage 2 pack. It has worked well in my car, is smooth and very fast.
You should also consider getting xHP software to make the gearbox the way it should have been from the factory.