Suspension and Brakes Springs, shocks, coilovers, sways, braces, brakes, etc.

2014 IS350 AWD FSport with RSR Downs feels rough

Thread Tools
 
Search this Thread
 
Old 12-09-18, 02:04 PM
  #1  
doobay
Driver School Candidate
Thread Starter
iTrader: (1)
 
doobay's Avatar
 
Join Date: Dec 2013
Location: Ontario/Canada
Posts: 23
Likes: 0
Received 0 Likes on 0 Posts
Default 2014 IS350 AWD FSport with RSR Downs feels rough

Hi Everyone,

I have a 2014 awd fsport is350 with RSR downs on stock wheels and ride seem rough. Mileage on the car is 100,000km / 60'000 miles, on the springs should be about 14,000km. Does anyone else have this setup that can chime in on their experience please.

Thinking of possibly changing the shocks & struts, if so what would be the best option to retain the adjustability of the f sport feature of shock dampening and max comfort?

Thanks

Last edited by doobay; 12-09-18 at 03:54 PM.
Old 12-09-18, 05:34 PM
  #2  
Napalvr
Advanced
 
Napalvr's Avatar
 
Join Date: Jan 2015
Location: Michigan
Posts: 597
Received 80 Likes on 64 Posts
Default

Originally Posted by doobay
Hi Everyone,

I have a 2014 awd fsport is350 with RSR downs on stock wheels and ride seem rough. Mileage on the car is 100,000km / 60'000 miles, on the springs should be about 14,000km. Does anyone else have this setup that can chime in on their experience please.

Thinking of possibly changing the shocks & struts, if so what would be the best option to retain the adjustability of the f sport feature of shock dampening and max comfort?

Thanks
I’ve had RSR downs for over 3 years and it rides the same as it did at 500 miles. Wouldn’t trade them for anything
Old 12-12-18, 07:17 AM
  #3  
Sasnuke
Lexus Test Driver
 
Sasnuke's Avatar
 
Join Date: Feb 2017
Location: Richmond Hill, Ontario, Canada
Posts: 6,260
Received 1,732 Likes on 1,368 Posts
Default

I have the RSR Downs installed on my 2014 AWD, but it's a 250, so I don't have the AVS system.

The reality is that shock/strut performance does degrade over time, without leaking or any other signs.
As a recommendation to maintain optimal ride quality, shock/struts should be replaced at 80,000kms.
But of course no one does, including myself.
It's like the Smart Key battery...they recommend replacing the battery once a year to maintain optimum range on the remote...who does that?...Everyone waits til the battery dies.

If you installed the Downs around 86,000kms, that would have been the perfect time to replace all the shocks/struts as well.
Best option now would be the replace them with the OEM units...this should get you another 4-5 years.
Unless you're ready to make the move to coilovers now.
Old 12-14-18, 06:07 PM
  #4  
doobay
Driver School Candidate
Thread Starter
iTrader: (1)
 
doobay's Avatar
 
Join Date: Dec 2013
Location: Ontario/Canada
Posts: 23
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks everyone. other than coilovers or oem stock struts and shocks does anyone know of some good aftermarket struts and shocks for awd and still maintain the electronic adjustability from the stock controls?
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
otakusan
Build Threads
193
01-28-24 01:26 PM
Austin1210
IS - 3rd Gen (2014-present)
2
06-01-16 04:37 PM
JSIS350
IS - 3rd Gen (2014-present)
16
10-24-14 05:45 PM



Quick Reply: 2014 IS350 AWD FSport with RSR Downs feels rough



All times are GMT -7. The time now is 08:15 AM.