S4 or S5 uprade?

[Boostmaniac]

Originally Posted by Bryan@BNR

A stock ECU will work good. You will need to pull around 6 degrees out of the timing and then get some 720s with a Super AFC 2 along with a FCD. Then with all the other mods, you should be good for 12-13 psi of boost. I would definatly install an EGT gauge to monitor those exhaust temps, then you will see how much room you have to adjust your timing up or down with the crank angle sensor. Also just as crutial is your AFR's. Make damn sure to keep the engine running pig rich and don't run more than 11.4 AFR at full boost. You may be able to run more boost, but definately keep an eye on that tuning b/c you can ruin the engine in a second if you dont know what you are doing...

There was more factual wisdom in this paragraph than you will ever know. I think all TII owners should memorize this before modifying their cars.