so the best way to go with ECU upgrade, if i have these mods already done to my S4:
#17
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Stock: Stock ;-)
Stage 1: Chip only
Stage 2: Chip and exhaust
Stage 2+: Chip and exhaust with test pipes or high flow cats
Stage 3-: K04s, stock injectors, 5 bar fpr, 3- chip, stock MAF housing
Stage 3: K04s, larger injectors (usually with 4 bar fpr), larger MAF housing, stage 3 chip
Stage 3+: Stage 3 items with K04 hybrid turbos or RS6 turbos and tuning to support the higher capabilities of those turbos.
I'm not sure what to call a GT28RS S4 :-)
Stage 1: Chip only
Stage 2: Chip and exhaust
Stage 2+: Chip and exhaust with test pipes or high flow cats
Stage 3-: K04s, stock injectors, 5 bar fpr, 3- chip, stock MAF housing
Stage 3: K04s, larger injectors (usually with 4 bar fpr), larger MAF housing, stage 3 chip
Stage 3+: Stage 3 items with K04 hybrid turbos or RS6 turbos and tuning to support the higher capabilities of those turbos.
I'm not sure what to call a GT28RS S4 :-)