Quote:
Originally Posted by MightyMouseTech
Not sure on your mods, but the M3 RSFB should be at the very top of the list.
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Absolutely nothing yet other than full bolt on mods, I just recently started looking into these sort of modifications.
Would the M3 rear subframe bushings be a direct fit on the 135i subframe or would I have to swap to a 1M/M3 subframe before doing so?
It seems like the best brands to go for these bushings would be Turner and Powerflex. My guess is that there are certain bushings that are only limited to the M3 subframe. If that were the case, would it still be okay to have a mixture of m3 and 1 series bushing on the original 1 series sub frame? Would there be any downside doing it this way or do people typically swap to the m3 subframe and have a more "pure" setup?
Here are my findings for rear subframe bushing options;
- PowerFlex Race Polyurethane Rear Subframe Bushings – Front Position Set (Mfg Part # PFR5-420BX2) – FITS 135i/M3
- PowerFlex Race Polyurethane Rear Subframe Bushings – Rear Position Set (Mfg Part # PFR5-422BX2) – FITS 135i/1M/M3
- Turner Delrin/Aluminum Rear Subframe Bushing Set (Mfg Part # TDR9080SB4) – FITS 135i
- Turner Solid Rear Subframe Bushing Set (Mfg Part # TDR9080SRS) – FITS 1M/M3
- Turner Solid Rear Subframe Bushing Set (Mfg Part # TDR9080SS3) – FITS 135i
I'm just not sure about fitment for the specified "1M/M3" compatibility on the 135i.