I did a search on these and came up with a bunch of the "diffusers" that are more like add ons and lips like the INGs +1

but I was wondering if any of you track rats and enthusiasts have a full function diffuser and splitter.

I saw the white IS with green TE37s setup, but was wondering if anyone has something more race spec?

Thanks in advance and sorry if this is basically a re-post, but I did use the search feature!

-je

 

If you look at the back of your IS under the car where the spare tire is. You will be surprise that we already have a working diffuser built in the plastic cover.
Mine has it 2009 IS.

 

I mean something along the lines of this


yes we have the box underneath the spare but I mean something that covers the whole bottom from the diff back.

 

The closest functional rear diffuser that I have seen is the Euroteck CF one. Other than that, I don't think enough 2IS owners track their cars to make production of a functional splitter/diffuser worthwhile to a company.

 

Thank you, I've seen that one and it looks like a nice replacement to the box. I was just wondering if anyone made their own full undertray in the rear and front.

 

Never seen anyone on here do one so detailed as you're saying. Just the one mentioned above.

 

Why would you need something like the one above on your Lexus?

 

there are no TRUE TESTED diffusers for our cars, its all 'form' rather than 'function'... ALSO most diffusers out there are really not functional either, take alook at a true F1 diffuser~ theirs actually has scoops that channel air to the diffuser and not some 'tacked on fins'.

 

not sure how functional this is, but i know he has the power to back it up (boosted)
I couldnt find a better angle but hes the only one ive seen with this.

 

Gonna cost a pretty penny to get those from japan!

 

a highly doubt any diffuser available for the is has been wind tunnel tested. they are all for looks.

 

that's what i got for my car
https://www.clublexus.com/forums/is-...ber-250-a.html

diffuser came from japan, cost over 900, varis brand, i think it works a little bit

 

Yes that was the one I saw (before he painted his wheels green)
I just wasn't sure if there were any hardcore track guys that might have one.

Looks like I have something to work on then...

Thanks a lot guys!

Anyone know of someone with a front splitter though? Or does that not really exist here either?

 

Might be turning my IS into a fulltime track car

 

That would be my sh..itz above^^^

That is a Varis diffuser for an EVO 8.

It has no testing on the IS's but it does on the EVO 8. With the rear side diffusers and under diffuser it completly covered the bottom and attaches to the rear diff frame tight.