In the Research & Development department of Supersprint the full exhaust system for AUDI A3 8V 1.4 TFSI (122 hp - 140 hp) is under development.
This sytem includes a turbo downpipe with a high performance metallic catalytic converter, a centre pipe or exhaust and a rear exhaust, available with twin tail pipes on the left side or a quad pipes setups, two for each side.
The stock bumper alread has valances on both sides for a four endpipes configuration, the black plastic diffuser must be trimmed instead to create the right side arch.
Pictures of the development will be availble soon in the Images and videos section, see the link above.