Just looking for some assistance on buy some lowering springs. Anyone use the RSR Down for an AWD Lexus is300 fsport? I drive a 2016.currently everything is stock. I plan on swapping on new wheels and tires. Tire size are 225/40/18 & 245/35/18 now sure if that would affect the lowering. If you guys have other recommendations lmk. And will I need to mod my car any other way to lower the car?

https://www.ebay.com/itm/RS-R-DOWN-S...wering+springs

 

Depends on the offset on the new wheels. RSR downs is a good choice

 

offset
fronts would be +38
rears +30
would that be ok?

 

The RSR downs are a great choice for your car.

We can beat ebay's price, contact us !

-Josh

 

Plenty have, and have also posted pictures of the results on CL. One thing to take note of -- results of RS-R springs for AWD are NOT the same as with RWD. The front will not drop as much, and as a result the front wheel gap to fender will still be greater than in the rear. If that is an issue for you (as it is for many of us AWDers here) just be sure to check the many images of installs so you can see the results before proceeding.

 

You might get away in the front but I think you’ll have trouble in the rear. Most go with +32-35 front and +38-45 rear. I’m using 32 and 42 respectively and have never rubbed

 

Maybe post the complete rim and tire specs.
The rear tire you quoted is smaller than a stock F Sport...so I'm curious as to what the complete rim specs are.

 

i meant to type 40** my bad guys! These are the wheels I’m thinking about getting
https://www.outcastgarage.com/produc...c110-18-wheels

 

Here are the specs for your stock F Sport wheels:

Stock F-Sport Wheel specs
18X8 +45 225/40/18
18X8.5 +50 255/35/18

Based on your link, I'm assuming that you are going to get Front: 18x8.5 and Rear: 18x9.5.
If that's the case, here's my recommended specs:

18X8.5 +35 245/35/18
18X9.5 +40 265/35/18

If you have something different in mind for the rim specs, feel free to post it and others can chime in as to what and what doesn't work.