yes, but no
technically it can be done.. but it would be very expensive.
It's not just replacing the tranny, you'll need a new starter,ignition, differential ... the list goes on.
It's cheaper to trade in your car for a manual.
PS: Why? As automatics go, the is300 has a great one. If your boosting performance you could upgrade your tranny ( or parts) to handle the increase strain. If you just want the control, get used to the paddles (buttons, with some practice they're very useful - try going into a sharp turn at 60, keep your foot on the gas, down shift , and power through)
or
trade in for a stick.
Yes. The only way I've found so far is to use supra parts. I haven't found any kits
uh no and no unless your rich
The 2006 Lexus IS-250 has a 6-speed manual.
The 2010 Lexus IS-250 has a 6-speed manual.
The 2011 Lexus IS-250 has a 6-speed manual.
The 2012 Lexus IS-250 has a 6-speed manual.
The 2007 Lexus IS-250 has a 6-speed manual.
The 2009 Lexus IS-250 has a 6-speed manual.
The 2008 Lexus IS-250 has a 6-speed manual.
The 2012 Lexus LFA has a 6-speed automated manual.
The 2012 Lexus IS-250-C has a 6-speed manual.
The 2010 Lexus IS-250-C has a 6-speed manual.