are less than desirable for performance. They are squish bent as well. Your car will run OK and will not miss with the stock NA exhaust, but the restriction will limit the power and slow the spool. If your out of money you can run the stock exhaust to get the car going and upgrade the exhaust when you have the funds. 3 inch expansion pipes offer the largest power band and drastically reduce lag with any size turbo on the Z. Enjoy the boost! Greg