I'm considering the JWT upgrade and I've read what to expect regarding performance for a TT, but I'm still in the dark about what I'm buying and how to install it. Do they send you an new ECU with the chip installed, just the chip, or what? And I've read talk of boost jets, but are these part of the upgrade and if so where/how are they installed? What all goes into this upgrade. Thanks
Follow Ups
Could someone explain the ECU upgrade please? - wilkendw08:30:12 09/10/00