Do you all know if the alignment specs on the 2016 GS350 are same as the 2015? I need an alignment and my alignment shop does not have the specs for the 2016 yet. I went to the dealership for a alignment but they would not do it because my car is lowered. Thanks. TC

 

I would say that alignment specs the same, suspension did not change.

 

just use the older version and thats what I did and u should be OK.

 

Alignment specs, as long as reasonable, aren't that critical. As long as your wheels are pointing relatively straight and equal to eachother on their respective axles. So going with the same generation's alignment will be fine.

If you don't know specs, you can find a shop that lets you specify what you want.

A good rule of thumb is you want toe on all four corners at 0. You can toe out slightly for additional response (good for cars like Lotus or other small sports cars) or toe in slightly for high speed stability. BMWs are spec'd to toe in. This is why they are stable at high speed. But that comes at a price. slightly increased tire wear. With alignment there are no free lunches. You either have minimal tire wear and no performance or increased performance and a more tire wear.

Camber as far as I know (at least on the IS) is non adjustable. So if you lowered your car, your only hope is that all four corners lowered relatively equally. Or else you can get camber kits to address any abnormalty.

So to summarize, as long as your alignment is reasonable and equal on its respective axle (front left/front right and rear left/rear right), you will be fine. Toe from 0 to toe in to -0.10 and camber no more negative than -1.5 on all four corners (if you want to adjust it and have the provisions for it) is a good base line on any car in the world. Some cars might call for a specific alignment due to how the engineers wanted it to handle/behave/wear.

Hope this info helps anybody wishing to get an alignment!