For the exhaust, check out the Strup that was just released...You can check my thread by clicking here
http://www.scionxdforum.com/forum/showthread.php?t=723 for pics and videos of the exhaust...As far as the intake goes, I went with the $30 Spectre short ram that is sold at Checker Auto/Kragen or Auto Zone...It works great and you can't beat the cost...Here is the thread on that
http://www.scionlife.com/forums/show...spectre+intake ...Read all (4) pages and make sure you get the 3.5 inch one because it's a direct fit...