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why its not combatable with 2+2 ?
- Saleh
Hi Saleh, they are, but the 2+2 was never sold as a TT in the United States, so it doesn't appear in most compatibility lists based on US models.
How much does this affect fuel economy?
- Jason
Hi Jason, other than the temptation to use a heavier foot, these ECU upgrades really do not affect fuel economy. They don't really adjust anything on the fuel map where you would normally be "cruising," and that's when the ECU is just going off of O2 sensor feedback anyway.
Does this tune work together with aftermarket parts such as downpipes and exhaust?
- Zeke
Yes, it is designed to support most common bolt-on mods
Does timing need to be adjusted at all when you install this ECU? Or is it literally replacing the Stock ECU and insert boost jets and it should run just fine.
- Brandon Jessee
Literally just replacing the stock ECU and installing boost jets! The ECU dynamically adjusts timing based on load/RPM, so all you need to do is make sure the CAS is set correctly, and that's true for any ECU.
