I assume they are referring to the simple truth that lowering springs alone will significantly degrade your suspension performance. You are trading off significant performance in how the car works while moving for how it looks while parked. Seeing as cars are designed to move, it is a poor tradeoff to make most the time. People who know cars consider lowering springs pure RICE. As in Race Inspired Cosmetic Ehancement. They may help you look like a race car, but that is all. A stock car would embarrass you on the track. No question.
sorry, but this just isnt true...I'm 50 and have my Porsche lowered with H&R Sport springs and know many others with Porsche, BMW, NSX owners over 50 with lowering springs...this is just bad info. They wouldnt sell too many if they were as bad as you make them out to be...The right springs installed properly will enhance performance of any vehicle....We arent taking about slammed parking lot princesses, we are talking about functional performance enhancing lowering springs...Lowering springs are a popular upgrade for car enthusiasts of all levels. It’s an easier and cheaper way to lower your vehicle without changing your stock dampers or compromising on comfort levels. No matter your vehicle, brands such as Eibach, Tein, Vogtland, Unplugged, MPP and H&R all offer tremendous value for money options....of course, if you are tracking your car more than 3 times a year, you probably want to invest in some coilovers, but only about 2% of the population will ever track their cars.
That’s what I’m waiting for; aftermarket shocks/struts. The factory shocks/struts are under dampened even with stock springs, IMO. But not coil overs; prefer factory style setups.
You've had your official warning and you're free to enjoy your car in whatever way works for you. No skin off my back if you make difference decisions and enjoy different things. However, I'm not coming from nowhere with this and there are certainly many others who have shared the same opinion all over the internet. Porsches, BMWs, and NSX all now have adjustable dampers too which would allow them to compensate to a point for a change in springs, which the Model 3 can't.
since nobody else actually answered your question, I contacted Eibach about this exact question. They told me either spring will fit on either model LR or P. I ended up going with the LR springs that lower the rear 1" on my M3P. it got me the amount of drop I was looking for in the rear. I have not noticed any negative effects or change in ride feel from stock.
teslamotorsclub.com
I was told "the spring rates are very close" not sure what that means but if it helps im running the stock front springs with the eibach rears, i didnt wanna lose any front clearance and the car now sits within 1/16" at all 4 corners due to the factory rear riding around an 1" higher. i think it looks perfect and cant tell any difference in ride.
FYI....
