ringo_929

thank you ! matt, but that is JB+, but i want JB4. (but i am not sure what is the different) ppl just said JB4 can get more power.

thanks. has been PM you

cos i do a lot of review and said the JB4 work with N54 can get 40-60HP more. and not too much ppl saying there has a problem after installed. So i am very interesting on it? otherwise what do you recommend?

i got the same problem for my 09 135i as well. does any one know how to fix it? do i need to buy any chip for the radio only?

i know i can get it online. but i just wanna find a local dealers which can help me install as well. as they need to do some configation which i worry i will damage the enginne if am config somthing wrong.!!