2010 Lexus GS460 Upgrades
03-20-23, 04:37 PM
#17
Intermediate
They gave it the same intake and exhaust, brakes and wheels as the 350, I assume this was along the same lines, as well as possibly laziness or for costs, the GS460s probably didn't make Lexus much profit.
03-20-23, 05:17 PM
#18
Rookie
Thread Starter
Doesn’t the GS460 have the same transmission as the ISF?? That 8 speed is good sometimes. But if you don’t launch in 1st gear the car feels slow. Downshifts are good only when you know where the WOT spots are
03-20-23, 06:31 PM
#20
03-20-23, 09:58 PM
#21
Since it wasn't an F vehicle or the flagship LS, it couldn't outperform either one. If they had left its 1UR with the same output as the LSs, it would completely outshine it.
They gave it the same intake and exhaust, brakes and wheels as the 350, I assume this was along the same lines, as well as possibly laziness or for costs, the GS460s probably didn't make Lexus much profit.
They gave it the same intake and exhaust, brakes and wheels as the 350, I assume this was along the same lines, as well as possibly laziness or for costs, the GS460s probably didn't make Lexus much profit.
03-20-23, 11:23 PM
#22
Intermediate
03-20-23, 11:41 PM
#23
Rookie
Thread Starter
I’ll get the 2010 ISF TCU in the next few weeks. They are saying at the dealer it’s $1500.. Looking forward to more responsive shifting but would rather not pay full price for a TCU.. oh well 
Also will get the PPE headers and Injen CAI. If I get an X pipe then I won’t be able to use the Medallion exhaust without chopping the wishbone. Guess it’s worth it if the X pipe makes a difference? On the website they are saying an increase of nearly 40 HP!?? Just from the headers alone or is that with full flowing pipes? Seems like all the mods available and a good ECU tune to the car now you could get it to 380 HP?
Sound good to me if that’s the case
Also will get the PPE headers and Injen CAI. If I get an X pipe then I won’t be able to use the Medallion exhaust without chopping the wishbone. Guess it’s worth it if the X pipe makes a difference? On the website they are saying an increase of nearly 40 HP!?? Just from the headers alone or is that with full flowing pipes? Seems like all the mods available and a good ECU tune to the car now you could get it to 380 HP?
Sound good to me if that’s the case
03-21-23, 08:31 AM
#24
I’ll get the 2010 ISF TCU in the next few weeks. They are saying at the dealer it’s $1500.. Looking forward to more responsive shifting but would rather not pay full price for a TCU.. oh well
Also will get the PPE headers and Injen CAI. If I get an X pipe then I won’t be able to use the Medallion exhaust without chopping the wishbone. Guess it’s worth it if the X pipe makes a difference? On the website they are saying an increase of nearly 40 HP!?? Just from the headers alone or is that with full flowing pipes? Seems like all the mods available and a good ECU tune to the car now you could get it to 380 HP?
Sound good to me if that’s the case
Also will get the PPE headers and Injen CAI. If I get an X pipe then I won’t be able to use the Medallion exhaust without chopping the wishbone. Guess it’s worth it if the X pipe makes a difference? On the website they are saying an increase of nearly 40 HP!?? Just from the headers alone or is that with full flowing pipes? Seems like all the mods available and a good ECU tune to the car now you could get it to 380 HP?
Sound good to me if that’s the case
As for an X pipe I run the ISF Xforce exhaust. it just needs to be lengthened a bit to fit.
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PaulGS460 (03-21-23)
03-22-23, 05:47 PM
#28
Rookie
Thread Starter
So aside from a little learning from the ECU for shift flare the ISF TCU is truly a plug and play situation on the 10 GS460? Aside from registering the TCU with a Toyota tech stream are there any other hidden things to know?
03-22-23, 06:14 PM
#29
Rookie
Thread Starter
Does it make a huge difference if I remove the cats or is the X force cat back alone enough with a tune? I’ve read that it adds a few more hp to remove the cats and go full flowing
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PaulGS460 (03-22-23)