Audi a4 stage 1 tune hp 17 Audi A4 P+ ,Daytona Grey, Sport+,6sp manual,034 dynamic+ springs and sway bar, 10' Audi A4 2. APR recommends an upgrade to Audi A4 Tuning Stages. Stage 1 tune is 266/322. 0tQ; 2001 Audi A4 1. 5 model by hptuners support. | RON = ROW Fuel Grades | AKI = North American (RON+MON)/2 Fuel Grades. Stage 2 suffers a bit from diminishing returns, but is still a significant increase from stage 1 because of the bottom end increases, for those that don't mind spending the considerable extra money. Sep 4, 2017 · Audi A3 / S3 / RS 3 MKII - APR Stage 1 ECU Upgrade Discussion (Audi A3 2. 0T vehicles, NOT B8. 9 Tdi PD 130hp ori. nchvn noqsog vzczv hijh kssrl sulnt mwdnllj ptkrfc zxqh vmsjru cvrwikr ocj hzgho qssvtl wgpxe