My 2009 Audi A4 B8. Doing a sound test on the APR turbo back quad exhaust. other mods for this sound test include APR Carbonio intake, APR stage 3 K04 turbo upgrade, Eurocode FMIC.
I got the rear diffuser from Eurocode Tuning. Good staff and fast shipping. A few new diffusers have come out since that might be worth taking a look at if you are looking to upgrade to quads.
where did u get the rear diffuser from?
SPowerLove 3 months ago
@SPowerLove
I got the rear diffuser from Eurocode Tuning. Good staff and fast shipping. A few new diffusers have come out since that might be worth taking a look at if you are looking to upgrade to quads.
elbigun 3 months ago
is that the osir cf quad valence?
killabaka 3 months ago
@killabaka Yes it is the Osir.
elbigun 3 months ago
sounds amazing, i am luca1094 on the audizine forum, you should put a test pipe on, it would sound even nicer
daze997turbo 7 months ago
@daze997turbo Thanks! I am currently running the APR high flow cat and am pretty happy with the performance of it.
elbigun 4 months ago