Hi guys i started my first project which is audi a4 2.7 biturbo swapped (quattro)
Im 17 and im doing it with my dad who has a lot of experience with cars but I want to know some little thing what can i do to make it faster and better
Some tips and easy advices that doesnt cost much

The car is completely stock 2.7 biturbo 250hp (was automatic but we fitted 1.8t gearbox on it with i think 2.8 v6 clutch)
So what can i do to tune the ECU for example and other simple mods

Thanks in advance

Yeah thanks

Yeah it was new to me and my dad but we did it (had most trouble with coding from automatic to manual gearbox but we did it) the car can run but still some coding to do so it can run smooth
The motor had its belt broken so it bended some valves and lifters but we put everything new in the motor and now it runs perfectly (serviced completely)

How can the tune be done since we cant dyno it (is it even possible to tune it without dyno and without tuning it on the road since we cant drive it its road illegal)
What should i do then?

Im sorry for posting in the wrong zone im new

Thanks for the quick reply!

Is it possible to flash some kind of tune file we have MPPS program and "interface" which we use to flash tunes for 1.9tdi and other cars so would that be possible for the 2.7 biturbo?