IS F (2008-2014) Discussion topics related to the IS F model

IS-F: Easy & effective chassis upgrade

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Old 07-16-08, 04:13 PM
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NILEPIMP
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Default IS-F: Easy & effective chassis upgrade

Just thought you would all like to know a quick and really effective upgrade to your IS-F, is to replace the stock IS-F rear sway bar, with the F-Sport rear sway bar (PN: PTR02-53080), which was designed for the 250/350. The F-Sport bar is a 19mm bar, versus, the stock IS-F bar is a 16mm bar. The improvement is very noticeable. Cheers!
Old 07-16-08, 04:23 PM
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vraa
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Sweet info
What is the change vs normal?
Will it make long drives unbearable?
Old 07-16-08, 04:58 PM
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NILEPIMP
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The change has absolutely no impact on ride quality - its purely a handling enhancement, removing some of that push (understeer) and make it a little more neutral. And its a straight R&R install - takes no more than 15-20 minutes. I strongly recommend.

Last edited by NILEPIMP; 07-17-08 at 05:48 PM.
Old 07-16-08, 08:01 PM
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CrazyMPG
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any pics of the setup? Also I assume you bought the whole F Sport set for the RWD IS cars right?
Old 07-16-08, 09:31 PM
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NILEPIMP
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Originally Posted by CrazyMPG
any pics of the setup? Also I assume you bought the whole F Sport set for the RWD IS cars right?
The F-Sport guys have set up 2 part numbers: 1) For the AWD rear bar, and 2) RWD kit (includes a front and rear bar). The AWD rear bar is the same bar in the RWD kit. I got the pics from the installation instructions that were included in the kit. Its a piece of cake and works awesome.
Old 07-16-08, 10:55 PM
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I8ABMR
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16mm sway bars on an ISF?????? Are you serious. I had 36mm front and 24mm rear( nismo sway bars) on a G35. They definetly need to widen that. I am amazed at how small that seems .Im sure the car handles, but it still seems narrow to me. A G35 doesnt handle better or flatter than an ISF for gods sake. I guess they make for it with really high spring rates
Old 07-17-08, 06:03 AM
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DRE1615
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Is it even worth the 3mm if some aftermarket company is going to come out with something more substantial???

Anybody know if this part is in the making???
Old 07-17-08, 10:18 AM
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NILEPIMP
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Originally Posted by DRE1615
Is it even worth the 3mm if some aftermarket company is going to come out with something more substantial???

Anybody know if this part is in the making???
Yes, its worth it. And its not all about just going bigger....it's about finding the right size, with the right rates. The F-Sport parts are available now. Just picked mine up from Longo Lexus.
Old 07-17-08, 11:25 AM
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VelvetBlue
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Thanks for the tip. I just ordered one.

Are any of the other F-Sport parts like springs or shocks better than the stock IS F ones? Or just the same?
Old 07-17-08, 11:26 AM
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CrazyMPG
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Originally Posted by NILEPIMP
The F-Sport guys have set up 2 part numbers: 1) For the AWD rear bar, and 2) RWD kit (includes a front and rear bar). The AWD rear bar is the same bar in the RWD kit. I got the pics from the installation instructions that were included in the kit. Its a piece of cake and works awesome.
Actually I heard from Sewell Lexus that the AWD rear bar and the RWD rear bar are not the same.
Old 07-17-08, 12:16 PM
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DRE1615
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Originally Posted by NILEPIMP
Yes, its worth it. And its not all about just going bigger....it's about finding the right size, with the right rates. The F-Sport parts are available now. Just picked mine up from Longo Lexus.

Can you guys who have ordered give us some more feedback when the time comes? Always looking to take a plunge on new things, but I'd like to hear more.
Old 07-17-08, 01:20 PM
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NILEPIMP
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Originally Posted by CrazyMPG
Actually I heard from Sewell Lexus that the AWD rear bar and the RWD rear bar are not the same.
They are 100% the same identical bar. The F-Sport guys didn't want the AWD owners to waste their money on a front bar they wouldn't need, so they just created an individual part number for that rear bar (stand alone).

Last edited by NILEPIMP; 07-17-08 at 05:49 PM.
Old 07-17-08, 01:22 PM
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Originally Posted by VelvetBlue
Thanks for the tip. I just ordered one.

Are any of the other F-Sport parts like springs or shocks better than the stock IS F ones? Or just the same?
Glad I could help. Everything else on the F is solid...the rear bar is really the only upgrade. The F-Sport parts are awesome for the 250/350's.
Old 07-17-08, 05:35 PM
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LexISguy
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how much are the rear sway bars? Nilepimp any difference in handling?
Old 07-17-08, 05:47 PM
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Originally Posted by LexISguy
how much are the rear sway bars? Nilepimp any difference in handling?

The bar retails for $225. And yes, it makes a difference in handling. Brings the vehicle more towards neutral and gets rid of some of that "push" (understeer) that is in the F.


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