Difference between 2005 and 2006 GS430 Exhaust manifold
 

Hi,

New to this forum, and would like to tap into your knowledge to clear some doubts. I recently purchased a 2006 GS430 and am looking for options for some bolt ons. I was looking at the header options for this particular year model but couldnt find any. Im curious as to why the 2005 header/manifold, would not fit the 2006 model year. What are exactly the differences in manifold design. Would there be a possibility to adapt the 2005 header to fit into the 2006 engine? Or would I be forced to go custom. If so what do you suggest? Thanks in advance for your help.

You would be forced to go custom. The 2005 models are 2005 and below (2GS vehicles). This is considering you're going with actual HEADERS....

The market isn't big for 3uz's in the 3GS. Our body styles are different than 2005 so this will not work.

If you want, go custom, but I'm sure tons of CELs will follow as our cars have tons of o2 sensors in the system lol. GL and LMK if you figure out what to do!