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

Can we get a verdict on those stacked exhausts yet?

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Old 02-29-08 | 11:00 PM
  #61  
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This friends is a diffuser

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Old 03-01-08 | 05:08 AM
  #62  
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Originally Posted by 1SICKLEX
This friends is a diffuser

What exactly?
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Old 03-01-08 | 10:49 AM
  #63  
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the bottom shark fins type of design, right mike?
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Old 03-01-08 | 01:15 PM
  #64  
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Can we get a verdict on those stacked exhausts yet?
Yes, verdict is: Hideous affectation.
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Old 03-01-08 | 01:46 PM
  #65  
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Originally Posted by Reyngel
You work for Lexus? Doing what, if I may ask?

I am a Certified Sales Consultant with Lexus of Tucson, and just spend 3 days with Lexus engineers and trainers for the IS-F.
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Old 03-01-08 | 03:17 PM
  #66  
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Originally Posted by IS-Freak
I am a Certified Sales Consultant with Lexus of Tucson, and just spend 3 days with Lexus engineers and trainers for the IS-F.

Certified Sales Consultant? What is that, exactly? It sounds like a fancy way to say "Salesman." No offense if that's what it is, I just had never heard of that before.
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Old 03-03-08 | 05:34 PM
  #67  
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diffuser helps get the air under the car quickly and smoothly. This causes a down force to generated. Diffusers are why you dont see huge wings on sports cars anymore
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Old 03-10-08 | 05:37 PM
  #68  
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I've heard the same story about the rear exhaust, that Lexus tried a single tip exhaust in the wind tunnel and it produced up force on the rear of the car, which everyone knows this is a No No. They went to a dual tip for aero to produce downforce at high speeds.
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Old 03-10-08 | 10:31 PM
  #69  
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Weird! When I looked at the IS-F on Saturday I looked at the exhaust for a good 5 minutes and I swore it was connected! Now that I see the pictures, I might have missed it. Man, I must suck
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Old 03-11-08 | 01:47 PM
  #70  
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Connected or not connected?


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Old 03-11-08 | 02:44 PM
  #71  
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The Tips ?? are connected to the exhaust... but not the bumper... (in your pic)


Originally Posted by y2ks2k
Connected or not connected?

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Old 03-18-08 | 08:27 PM
  #72  
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There are actually 7 built in diffusers underneath the IS-F. And yes, the quad stacked exhaust tips do prevent up forces at high speeds. Originally Lexus had 2 oval exhaust tips which caused tons of upforce. That's why they made the change. FYI
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Old 03-19-08 | 09:25 AM
  #73  
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I think the only way for people to understand how this works, is to look at the wind tunnel test. I get it, but I'd still like to see it myself.
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Old 03-19-08 | 10:47 AM
  #74  
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This is all marketing BS to cover up fake tips. Just b/c you decide to call them "diffusers", doesn't make them function as "diffusers". The underneath the car is all open on IS-F so that you CANNOT have smooth airflow. Not to mention the fake tips does not have enough surface to generate any downforce or prevent up force.

Originally Posted by DRE1615
There are actually 7 built in diffusers underneath the IS-F. And yes, the quad stacked exhaust tips do prevent up forces at high speeds. Originally Lexus had 2 oval exhaust tips which caused tons of upforce. That's why they made the change. FYI
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Old 03-19-08 | 11:03 AM
  #75  
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Originally Posted by kt22cliff
This is all marketing BS to cover up fake tips. Just b/c you decide to call them "diffusers", doesn't make them function as "diffusers". The underneath the car is all open on IS-F so that you CANNOT have smooth airflow. Not to mention the fake tips does not have enough surface to generate any downforce or prevent up force.
^^ Are you sure about that???

The last one I was under is pretty much covered up...
Except for the drive shaft and exhaust areas...

Joe Z
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