My 07 coupe has less than 30k miles- there are no overt signs of worn compression rod bushings. I do drive the car near it's limits frequently, and have other suspension mods that help (Ohlins, fatter sways, chassis braces, etc). I already have some whiteline poly bushings- would I notice any improvement installing these, even though my OEM ones are not worn yet? Or should I just wait until OEM are actually worn?

 

Always go with white line if you drive it hard. Oem won't last. Ohlins on a car though??? Really?

You might* notice an "improvement" per say, but I'd wait.

 

Really. Can't say enough good things about them. Originally had Tokico D-spec and Eibach (both sportline and prokit), and the Ohlins took the car to a whole new level. Better handling at the extremes, yet more forgiving, more predictable all along the spectrum. Suddenly, my G had a certain poise and balance that made it more fun to drive even as a dd. Any regrets I may have had about not buying German again were gone. They're discontinued- get them while you can.

 

Steering feels about 100% better with polyurethane comp rod bushings. Feels very very tight and precise.

 

any brand you recommend.

 

I've only used energy. Lots of people swear by whiteline. Some don't like energy because of creaking, but adequate lubrication (with silicone lubricant) has yielded me results better than most. You really gotta have them swimming in lube.

 

Whiteline for dd seem to be the consensus, SPL for track, but be aware SPL will make you ineligible for certain SCCA categories (I think all the street categories don't allow for solid metal bushings, someone please chime in if I'm wrong).