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You’re not going to get the best of both worlds. You’ll have a slight amount of extra stiffness due to having a bit less suspension travel. The RS-Rs are supposed to be comfort-oriented springs though and are supposed to not reduce much if any ride quality, although I’m just going off what others have said as I have only tried Eibach and H&R.
You can keep your stock struts, or you could swap if you want. Yours are probably still good though, due to the age of the car. They are designed to work within the range of the stock shocks & struts.
Bilstein B6 shocks for 2018 Toyota Highlander installed
Hi guys, i just installed B6 shocks on my 2017 so I'm here to confirm they do fit and it rides pretty good, not harsh at all. More composed than before since both rear shocks were dead (but not leaking), The rear doesn't squat when accelerating anymore.
Last edited by ghost31711; 04-24-23 at 08:43 AM.
Reason: Spelling corrections
No complaints. I only have ~10k miles on it and it's close to being 3 years old but no complaints and I have to admit that my wife is picky. I've had over 20 different rides over the past 20 years we've been married so she knows a bad ride from a good ride and never have I heard a negative comment from her. The Conti's are surprisingly quiet too.
With the RS springs, though, it's an entirely different story. The ride was rough...extremely rough. So rough she didn't want to drive until I swapped the stock springs back in...I felt the same way.
I went with 10.5 because I wanted to maximize the concave look. No regrets with the 10.5 other than the obvious- it's harder on the steering components but I'm not concerned about that because it handles like it's on rails and gives my wife that much more confidence in driving it.
Hope this helps. There are a ton more pics here if you do a search for my posts.
My apologies for reviving this ancient thread. I'm currently a new owner of a 2017 RX350 F-Sport and looking for an answer on my lowering spring quest. Initially I was going to go with the RS*R T299D which is the 450h version because I wanted a stiffer spring rate, now elimmigran has me double thinking, maybe I shouldn't. Given the fact that the ride was too rough on the T299D, have you thought about using the RX350 F sport version? Which is T298D? I noticed they have a less stiffer spring rate.
RS*R T298D for RX350 F-Sport (AWD)
F - 4.23kg = 1.4 - 1.6 Drop
R - 4.44kg = 1.4 - 1.6 Drop
RS*R T299D for RX450h (AWD)
F - 4.60kg = 1.4 - 1.6 Drop
R - 4.65kg = 1.0 - 1.2 Drop
The assumption or conclusion I came up, given the 450h is required a stiffer spring is to compensate for the added hybrid system and batteries.
RX350 AWD - 4,387lbs
RX450h AWD - 4,740lbs
This is a 353lbs weight difference.
Would like to hear from both sides of the spectrum, RX 350 & 450h owners using RS*R lowering springs regarding ride quality.
Thank you all
Last edited by loopdiggakid; 08-15-23 at 01:32 PM.
09-26-22, 01:35 PM
