Simmsled

Hi everyone, I have searched and have not found anything about anyone that has replaced their OE shocks ONLY (without installing different springs) with the F Sport shocks.



My GS300 AWD accepts the same F Sport shocks as the IS AWD, and the GS cannot be lowered without wobbles and other NVH issues (so I won't be changing springs).

SO... I'm looking to install these shocks and wanted to see if anyone has done this in the IS world without swapping springs.

Thanks everyone!

Sffd103

iTrader: (16)

If you need new shocks I don't see a negative. They're made by Bilstein I believe and they're a great quality brand. I personally have never seen someone change out to performance shocks without springs but like I said, there's no negative. Good luck.

Simmsled

My thought process is basically, either get a BMW 3 Series or Focus ST or see if the F Sport shocks can improve the feel and sense of handling. I already have the F Sport sways and it made a world of difference in roll resistance per interval of lateral acceleration.

I am at 100k miles, however, and it could be that my stock shocks have lost a bit of their 'edge'. The GS shocks are monotube KYB Gas a Just type and do last longer than a twin-tube design used in the IS.

Bilstein either nails the damping for a sport style shock, or they create a harsh damper that falls way to the performance side and out of the realm of acceptable comfort. I'm just looking to see the responses to gauge where these shocks fall. If they can be paired with stock springs to liven up the drive a bit with an acceptable amount of comfort loss, I'm in.

reyoasian

iTrader: (2)

I'm actually installing mine soon with Road Magnet springs

You may consider F Sport springs if you're worried about issues. Can't go wrong with OEM.

Simmsled

You cannot even use the F Sport springs on the AWD 3GS due to wobbling and vibration.

Cannot do springs, otherwise they would have been on a long time ago!

reyoasian

iTrader: (2)

even F-Sport has issues with that? I met a guy local he has Tanabe springs on his 3GS, he likes it. Rolls on 20's in the summer as well.

Simmsled

The AWD models do. The RWD, no worries.

The 2IS and the 3GS are VERY closely related.

reyoasian

iTrader: (2)

2IS AWD get vibrations at idle and some wobbly at low speeds going off the line but it's ever so slightly I don't really feel it unless paying close attention to it =\

Maybe 3GS is worse due to the fact that it's a bigger car

redspencer

iTrader: (1)

On the F-Sport brochure, I don't see the 3GS AWD as an option for the F-Sport Shocks. If you plan on using the IS AWD version of the F-Sport Shocks, I would imagine that the difference in weight between your GS AWD and the IS AWD might cause some issues with how the shocks respond during the compression and extension cycles.

Simmsled

Look up the weights. It's VERY close for the GS300. The GS350 weighs even more, and AWD is not listed. So then why list for GS300?
I know they fit. I know they don't want to list them as fitting on the GS as they are most commonly paired with the FSport springs as well. And lowering the AWD 3GS is not recommended.

But shocks alone... That could be a proper solution. I may give this a shot with stock springs.

Looks like nobody has done it.

LexusLgend

Hi Simmsled, reviving this thread, and any updates on this set up?