We tested a lot of chips before choosing to carry the Weltmeister brand, independently verifying performance in dynamometer testing and on the track. Other chips simply dont measure up. You'll like the smoother response, greater torque, and increased driveability of Weltmeister computer chips. And you'll love all the new acceleration and passing power at your command. Only Weltmeister guarantees your satisfaction. If for any reason youre not satisfied, return the chip undamaged within 30 days and well refund the money you paid for the chip. And these chips are backed by a lifetime warranty on materials and workmanship. Were proud to carry Weltmeister. For USA, Canadian, and Japanese Porsche Only. Not for soldered chips, please check before ordering, Learn More