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All cars › Comparisons › Audi RS Q3 8U vs Audi TT RS 8J

Audi RS Q3 8U vs Audi TT RS 8JTuning compared, stage by stage

Stock power, Stage 1 to Stage 4 and typical costs for both cars, side by side.

Audi RS Q3 8U with ABT Sportsline body kit, stripes and 20-inch wheels, rear three-quarter view

Audi RS Q3 8U or Audi TT RS 8J? Both use the 2.5 five-cylinder. Here's how far each one goes, using the makers' and tuners' own figures from our two guides.

Short verdict

On Stage 1 software the Audi RS Q3 8U gains about 29% and the Audi TT RS 8J about 12%, so the Audi RS Q3 8U gets more from its first tune. The first Stage 1 price each guide lists is $527 for the Audi RS Q3 8U and $527 for the Audi TT RS 8J, about $6 and $13 per horsepower (check the guide: some include parts). For a big build the Audi TT RS 8J has the higher ceiling: 600–800+ PS / hp at Stage 4, against 610–707 PS for the Audi RS Q3 8U.

At a glance

Audi RS Q3 8UAudi TT RS 8J
Years2013–20182009–2014
Engine2.5 TFSI five-cylinder (CTSA, CZGA, CZGB)2.5 TFSI five-cylinder (CEPA), iron block
Stock power310 PS / 420 Nm; facelift 340 PS / 450 Nm; performance 367 PS / 465 Nm340 PS / 450 Nm; plus: 360 PS / 465 Nm

Power by stage

Audi RS Q3 8UAudi TT RS 8J
Stock310–367 PS340–360 PS
Stage 1401–435 PS / hp380–420 PS / hp
Stage 2450–472 PS419–454 PS / hp
Stage 3500–550 PS468–550 hp / PS
Stage 4610–707 PS600–800+ PS / hp

Figures are the tuners' own claims from each guide, on the fuel each tuner states.

Typical parts cost

Audi RS Q3 8UAudi TT RS 8J
Stage 1APR $526.95, BAR-TEK €817.10 before VAT or HPerformance €999 with TÜV; HPerformance's gearbox tune €300 more.remaps $526.95 (APR), $625 plus a $180 cable (034), €650 (BR-Performance), €599–€799 (TVS) or €999 fitted (HPerformance); S tronic software from £500 before VAT (TVS); plug-in boxes €499 (RaceChip) or €799 (DTE).
Stage 2Wagner EVO 2 intercooler $1,199 before VAT; Milltek downpipe with a racing cat €1,512.56 before VAT (BAR-TEK); HPerformance Stage 2 €8,499–9,499 fitted.intercooler $1,255.50 (Forge) or $1,480–$1,830 (Wagner); downpipe $1,480 (Wagner) or from €1,999 (HPerformance); cat-back exhaust £1,043.01–£1,240.07 (Milltek); manual clutch €647.10–€744.35 (Sachs).
Stage 3TTE500 upgrade of your turbo £2,710.82; HPerformance Stage 3 €13,699–14,749 with TÜV.034 RS500 kit $5,407; Loba LO500P €3,395; Turbo-Total 550 €2,637.78 before VAT; fuel-pump upgrade $390 (034) to €840.29 before VAT (BAR-TEK).

List prices from the guides, before shipping, import tax and fitting. "—" means that guide has no cost line for the stage.

Where each one ends up

At Stage 4 the Audi RS Q3 8U reaches 610–707 PS and the Audi TT RS 8J 600–800+ PS / hp.

Read the full guides