GreentAzn

Can someone please advise a quality and worth shocks for 2015 IS350, Rear?

OEM will not honor warranty because of my custom fit.. obviously.

Any help is appreciated.

sandiegoer

iTrader: (1)

Idk what u mean by custom fit (wheels maybe?). But I have a set of f sport shocks and Springs for sale at $650. If u interested

gbgary

you don't want to replace the rear only unless you go oem. if you don't want to go oem you need to do all four.

3actual

You should stop beating around the Bush and tell us what "custom fit" means to you.



I'm guessing the OP has lowering springs with stock struts causing premature wear on the struts.

jkonquer

There can only be so many "Custom fit" you can do on a stock shocks. Obviously its lowering springs.

anthonys2r

iTrader: (1)

He's running springs. No surprise that the stock shocks blew. Don't be cheap with springs and lower the proper way - with coils. I especially cringe at those wanting rsr superdowns.

600rr

Springs will cause premature wear on shocks after a while but coils will also need to be replaced after 40k. It's part of the game if you're lowering the car.
If the rear blew, the front is on its way out.

Vivid101

get shocks that are meant for cars with lowering springs. Stocks are not designed to stay compressed like that.

3ISOwner

How many miles did you drive before it was blown? I'm on RSR Downs as well.

GreentAzn

Apologies for the unclear description guys. Custom fit meaning the mods I've done to my car, it's in my signature.

F-Sport Performance Exhaust F-Sport Intake Vossen CVT Gloss Graphite 20x9 +38 20x10.5 +45 Toyo 4 Plus 225/35/20, 255/30/20 RSR Half Down

I blew my shock about 5000 miles after I put on the RSR Half Down. Furthermore to my issue, my rear tires are rubbing unevenly, it rubs heavily on the inner side of both rear tires. In result, I'm having to swap out my tires every 3.5months or so, being a frequent driver (70 miles, everyday), I'm on my third set atm.. I've been to multiple mechanic shops, and they've diagnose the issue and attempted wheel alignment and adjusted camber and toe, but the bottom line is,unless an camber arm is introduced, my only other option is to change my wheels.

Can anyone provide me with 2015 OEM IS350 FSport Shock PNs?

Much appreciate all your support.

4TehNguyen

iTrader: (1)

need to find out if F sport shocks are rated to take that much lowering, or else may have the same issue again

3actual

As much as you are spending on tires I'd get some adjustable trailing arms for the rear. If no one makes them call Insane Motorsports/Black Magic hydraulics out of Vegas (same company). The owner Ron is extremely knowledgeable in suspensions and should be able to fab up what you need at a reasonable price.

Some of the guys in AZ from Art of Noise truck club do some high quality fabrication work and might be another option.

atomic250

The only thing I can think of that caused yours shocks to be blown out is your 20" wheels. The reason for is because I've had RS-R Half Down springs installed on my car for a year now and still on the same set of tires I installed with my 18x8 and 18x9.5 wheels. Also, the RS-R Half Down has a very mild drop so there's no way it should cause that much damage to your F-Sport Shocks because the F-Sport Shocks should be able to support the F-Sport lowering springs, which has a higher drop rate vs the RS-R.

600rr

Wow. 3 set of tires and blown shocks. You're already spending thousands of $$$ on tires and shocks after 5k miles.
A large price to pay just for a mild drop, literally.
If you REALLY want a lowered car, go with coilovers. But that will make your 70 mile daily commute a pain in the ***, again..literally.

387

If you want to only spend a grand (I'm assuming you are RWD), I would just get a set of the F Sport Accessory shocks. They are made by Bilstein.

If you have 2g to spend, just get a set of coilovers, I would do KWV3s.

I have a set of RSR sport-i coilovers on my car. My options were limited being AWD, otherwise I would have entertained a set of KWV3s or Ohlins DFV. I had a set of RSR Super Downs lined up to put on my car, but decided against it because my car already had 40k miles on it when I got it and the stock dampers were probably already worn or close to it from daily driving and smacking potholes. I hope to get 30K miles out of my RSR before a rebuild or replacement.

Shocks/dampers should be considered wear and tear items, like tires.......