what does chipping actually do?

does it just raise boost? adjust fuel? or does it let the computer use the boost without throwing a cel? cant i get just the same results from a fpr and a mbc?

it makes the turbo run higher boost, it also raises the redline and makes your engine have more power by reajusting it to the setting the chip wants.

A year ago I asked the same question about how the performance chip works. So I asked this question to a guy named Ron Price from PES-Tuning, and here is his answer:

The GIAC ECU Chip for your Audi achieves its 50-55hp gain by raising
the turbos boost pressure from 8 pounds to 16 pounds, plus allowing
increases in timing and fuel delivery. The chip is soldered into your cars ecu replacing the stock chip. The only time a check engine light would
appear is if an engine malfunction had occured, the chip alone will not cause a cel. The tiptronic chip will work in any format with or without an aftermarket ecu chip. Thanks

Ron Price
Technical Sales Associate
PES, LLC
www.pes-tuning.com <http://www.pes-tuning.com>;
267-288-0161