TheGut said:
It says it has no info on my car
Does this effect the performance? Meaning, is new spec faster?
Best way to know which spec M135i you have is to open the bonnet and look for EWG connectors.
In terms of performance the new spec is faster. It holds boost till redline where the older spec fails and drops boost after 4800rpm.
Old spec M135s come in at 205wkw-215wkw (Stock)
New spec M135s come in at 220wkw-225wkw(Stock)
Old spec M135s come in at 240wkw-260wkw (Modded)
New spec M135s come in at 270wkw-300wkw(Modded)
When modded with the same mods, the new spec clearly shows an advantage of at least 25wkw gains over the older model
On the road on a rolling run with both the new spec and old spec modded , the new spec runs away easily and opens at least a 3car gap and going. Older spec is unable to hold boost and starts to die off.
At the moment the only way to get the older spec on par with the new spec is a turbo upgrade offered by Vargas in the states but will still lack the advantage of EWG that the newer spec has.
Hope this helps