Type R Club of America

Dave7CDMTYPER wrote: ↑Sat Mar 06, 2021 6:48 pm Not gonna be harsh. My gs-r has koni and itr springs, and I keep them on full hard mostly, cause I like it sporty. Full soft is definitely gonna allow more body roll.

The setup feels very close to oem ITR imo.

coolhandluke wrote: ↑Sat Mar 06, 2021 11:26 pm I recommend having a baseline to measure what you have today versus what you are considering, before making the investment. "Harsh" is subjective to the user, mood, particular road, etc.

A quick search found this:
-Koni Yellow Front & Rear dampening calculators

I would find the specs for Bilstein to directly compare, there may even be side by side available. I also recommend reading up how the overall suspension works together. For example, I wonder if the OEM USDM or JDM ITR springs do not match the valving of your Bilstein off the shelf B8's. If so, the issue could also persist with Koni Yellows. The data would confirm and guide you towards re-valving the current Bilsteins or opting for the Koni Yellows.

Stin1 wrote: ↑Wed Mar 10, 2021 10:00 am I have the yellow konis. They are way too soft in the low setting. I prefer the stiffest setting.

Xian wrote: ...Koni Sport "Yellows" - awesome OTS solution for most applications. Not a load of compression, decent rebound, and can handle rates up toe ~500#. It's a solid street shock that you can also use on track or for autox. Be careful with bump travel if you're lowering the car much at all. Consider getting extended upper mounts or their "Race" shocks if you want to go low....

...Shock adjustments - keep in mind that nothing on the car works in a vacuum; meaning, if you change something at one end of the car, it won't just effect that end of the car... it'll impact the whole thing. Generally speaking, adding rebound to one end of the car will make it looser/easier to rotate by transferring load more quickly. Adding compression aids in grip by helping to keep the tire tracking the surface until you have too much and then it decreases grip. If folks have questions, post them up and we can discuss. High end Monotubes/Pimp Shocks will have a much larger range than the entry level twin tube stuff from Koni mentioned above....

coolhandluke wrote: ↑Sun Mar 14, 2021 11:27 am

Stin1 wrote: ↑Wed Mar 10, 2021 10:00 am I have the yellow konis. They are way too soft in the low setting. I prefer the stiffest setting.

What springs and sway bar(s)? I feel looking at the complete picture offers better feedback.

OP - I'm reminded of a more technical thread around suspension we have here:
viewtopic.php?f=8&t=20

Example:

Xian wrote: ...Koni Sport "Yellows" - awesome OTS solution for most applications. Not a load of compression, decent rebound, and can handle rates up toe ~500#. It's a solid street shock that you can also use on track or for autox. Be careful with bump travel if you're lowering the car much at all. Consider getting extended upper mounts or their "Race" shocks if you want to go low....

...Shock adjustments - keep in mind that nothing on the car works in a vacuum; meaning, if you change something at one end of the car, it won't just effect that end of the car... it'll impact the whole thing. Generally speaking, adding rebound to one end of the car will make it looser/easier to rotate by transferring load more quickly. Adding compression aids in grip by helping to keep the tire tracking the surface until you have too much and then it decreases grip. If folks have questions, post them up and we can discuss. High end Monotubes/Pimp Shocks will have a much larger range than the entry level twin tube stuff from Koni mentioned above....