Suspension upgrades on the 135 takes a lot or research and intention to get the form & function working in tandem.
Personally I have no issues running a bit of rake on my 135. I'm running 225 F & 255 R tires. There is plenty of rear grip for daily driving unless you are tuned and like speeding tickets. The added rake helps with front end understeer.
That said, your front looks a bit lower than I'd personally like but to each his own.
Suspension upgrades in order of improvement impact: rear subframe bushings or inserts, M3 front control arms, diff brace (optional but helps), then shocks & springs.
BTW I have a set of Msport shocks and/or just the springs if you want them. They are just gathering dust. You gotta pay shipping tho.
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