Will be removing TPs next week on my Z. They are in excellent condition and only have about 700 miles on them. No CEL, long J-tube design. Here's the link to the pipes:
GTM Motorsports*::*EXHAUST*::*GTM 350ZHR/370Z/G37 Test Pipes
I've decided to keep the rear exhaust off and it is just too much with TPs in place. This are great quality TPs and not the crappy ones they sell on Ebay. With the long JTube, no CEL issues...
I paid $310.00 shipped. Your pice - $250 shipped CONUS paypal....pm me for any additional questions.