Originally Posted by Vegas

Before the mods I'd look at the items that need to be replaced if not already done.

If the lower ball joints have not been changed, do it.

https://www.clublexus.com/forums/sus...ll-joints.html

https://www.clublexus.com/forums/sus...with-pics.html

https://www.clublexus.com/forums/sus...-pictures.html

Also, look at the lower control arms #2, if they have not been replaced, replace them! At 150k they are shot.

If there are no service records for the tranny fluid being replaced, change it. Only drain and fill! No power flushes!

http://www.lexls.com/tutorials/trans...ransflush.html

I'd replace the rear diff fluid while your under there.

Power steering fluid often gets over looked which should be replaced.

At 150k you might want to find out if the spark plugs have been replaced or not. If not, go with NGK Iridiums. I used part number BKR6EIX-11 in my car.

As for mods, I feel the first thing a GS needs is a lower stance. Spend alot of time looking into this. The GS is finicky when lowered, parts wear out faster because the very geometry of the lower control arms for example are fixed to work reliably at stock height. You could throw springs/shocks on but if only that count on tire wear issues and a less than desirable alignment.

https://www.clublexus.com/forums/sus...r-your-gs.html

https://www.clublexus.com/forums/sus...and-facts.html

https://www.clublexus.com/forums/sus...gs-shocks.html

There is a few HP mods like headers/exhaust and intake/ecu combos. I personally run a SRT intake/ECU. That is a proven performer but is around $600. There is a real world improvement there. I'd stay away from forced induction to eliminate alot of money spent and headaches if this is your daily driver. Anyone who forced inducted there daily driver know what I mean.

I hope that helps!

Originally Posted by Chumacher

manly V8 sound hahaha I can't tell if this is real or not.

Originally Posted by Vegas

Before the mods I'd look at the items that need to be replaced if not already done.

If the lower ball joints have not been changed, do it.

https://www.clublexus.com/forums/sus...ll-joints.html

https://www.clublexus.com/forums/sus...with-pics.html

https://www.clublexus.com/forums/sus...-pictures.html

Also, look at the lower control arms #2, if they have not been replaced, replace them! At 150k they are shot.

If there are no service records for the tranny fluid being replaced, change it. Only drain and fill! No power flushes!

http://www.lexls.com/tutorials/trans...ransflush.html

I'd replace the rear diff fluid while your under there.

Power steering fluid often gets over looked which should be replaced.

At 150k you might want to find out if the spark plugs have been replaced or not. If not, go with NGK Iridiums. I used part number BKR6EIX-11 in my car.

As for mods, I feel the first thing a GS needs is a lower stance. Spend alot of time looking into this. The GS is finicky when lowered, parts wear out faster because the very geometry of the lower control arms for example are fixed to work reliably at stock height. You could throw springs/shocks on but if only that count on tire wear issues and a less than desirable alignment.

https://www.clublexus.com/forums/sus...r-your-gs.html

https://www.clublexus.com/forums/sus...and-facts.html

https://www.clublexus.com/forums/sus...gs-shocks.html

There is a few HP mods like headers/exhaust and intake/ecu combos. I personally run a SRT intake/ECU. That is a proven performer but is around $600. There is a real world improvement there. I'd stay away from forced induction to eliminate alot of money spent and headaches if this is your daily driver. Anyone who forced inducted there daily driver know what I mean.

I hope that helps!