Im looking at putting coilovers on my 2015 is350 but i was wondering what people are doing about the sensors (im assuming for dampening) in the front. Are yall just not running them anymore, and if so any lights come up on the dash? Also any warranty issues with doing coilovers? I know the suspension will be voided but as far as everything else...

 

I have the RS-R Super Down springs installed on my 3IS and i've had no issues with any warnings or lights coming on my cluster.

I love it - i get so many stares and glares when i ride

 

I run J5 JS coilovers and they're great. I run the non AVS compatible ones. They also have a set of AVS compatible coils so you can still use the module that hooks up to the OEM strut. Which means you could still keep the S+ feature your car came with. PM me for additional info.

 

I've had RS-R Down springs installed on my I350 F Sport 8 days ago and I can confirm I have not had a single issue with any warning lights coming on. If you ever had any suspension issues you could always reinstall the stock springs.