I love my build thus far. I feel like it’s the best of both worlds.
5” intercooler for faster response. FBO and high flow cat, making 385whp and 400wtq.
My ethanol map makes around 425whp and 435wtq.
I call it the M2 comp map and the M2 CS map
It’s been a long time since I dyno’d my car but from what I remember, the power gains were spilt between the downpipe and the tune. Each gave around 15-20whp/wtq gains. The tune a little more so.
On the stock map with a downpipe alone it was pretty quick. I don’t think a downpipe and a tune is enough gains to completely mess up the fun of the car or even adding E85. It’s still punchy stock but if you tried it and didn’t like it, you could always take it off.