Audi tuning guides: Stage 1 to 4 for every model

Power by stage, model by model

Car	Years	Engine	Stock	Stage 1	Stage 2	Stage 3	Stage 4
Audi A4 B6 1.8T	2001–2005	1.8T 20V turbo four, lengthways	150–190 PS	195–225 hp	208–240 hp	247–265 hp	320+ hp
Audi TT RS 8J	2009–2014	2.5 TFSI five-cylinder, iron block	340–360 PS	380–420 PS / hp	419–454 PS / hp	468–550 hp / PS	600–800+ PS / hp
Audi S3 8V	2013–2020	2.0 TSI EA888 Gen 3	292 hp	357–381 hp	372–397 hp	470–536 hp	550+ hp
Audi RS3 8V	2015–2020	2.5 TFSI EA855 EVO	394 hp	459–542 hp	493–574 hp	700+ hp	800+ hp
Audi TT RS 8S	2016–2023	2.5 TFSI EVO five-cylinder, aluminium block	400 PS	440–505 hp / PS	500–554 hp / PS	578–650 hp / PS	650–1,000+ hp / PS
Audi S4 B9	2017–2024	3.0 TFSI EA839 turbo V6	354 PS	430–450 hp	445–470 hp	530–620 hp	630–740 hp
Audi RS5 B9	2018–2024	2.9 TFSI EA839 twin-turbo V6	450 PS	500–525 hp	525–605 hp	590–680 hp	710–740 hp
Audi RS6 C8	2020–	4.0 TFSI twin-turbo V8	591 hp	668–753 hp	720–819 hp	760–950+ hp	1,000+ hp
Audi S3 8Y	2020–2024, facelift 2024–	2.0 TFSI EA888 Gen 4, Continental turbo	310–333 PS	370–427 hp	410–440 hp	478–537 hp	— no verified parts
Audi RS3 8Y	2021–	2.5 TFSI five-cylinder	401 hp	446–561 hp	467–565 hp	585–613 hp	650–800+ hp

Figures are the tuners' own claims from each guide, on the fuel each tuner states. Some are at the wheels (whp), so compare like with like.