Quote:
Originally Posted by darocc
What happens if you don't have a down pipe and run the higher boost levels? (i.e. map 2) ?
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Darocc,
Higher boost demand from turbo will increase EGT's which will be compounded going through stock DP with restrictive cat. ECU will reduce boost and or retard timing and or go into "limp mode" as a reaction to higher/too high EGT's.
Freer flowing cats/decat DP helps dissipate heat much quicker away from turbo outlet so EGT's stay within more useable limits.
PD.