I'm in the process of a TII swap on my s4 na. Now my question is, I'm planning on getting a down pipe, exhaust, intake, would rtek be a good thing to use? I'm kinda confused on how it works, is it just soldered into my ecu and then makes small corrections the light modifications I add, or does it need to be tuned? I am also debating on eliminating the omp, and premixing, would this also affect it?

I went to their website, and the faq section, but was still a little confused, thanks guys!

 

An Rtek would be ideal for those mods. You can probably get by with the 1.7, which is just a chip swap on the ECU. It assumes a fixed set of mods, like those you mentioned plus a set of 720CC secondaries.

On the S4, the ECU has nothing to do with the metering oil pump.

 

Thank you! the s5 had the electronically controlled omp correct?

 

Correct.

 

In my experience(and my eyes getting bad) I would opt to get the chip installed from Pocketlogger.(let them go through the hassle!)
The Ecu Chips have the about 32 small legs that you have to de-solder and then take the whole chip out all at once(and there is TWO chips to remove for an RTEK 2.1),,it is a big pain in the ***!
I tried getting just the chip and bought a soldering iron to do it and then changed my mind.By the time I found that nobody in my area would install a ECU chip in my Car's computer I wasted alot more than if I would have just Bucked up and sent the ECU to Pocketlogger!

 

Ya I saw that you could mail in your ecu on their website.