Quote:
Originally Posted by rogerdiaz
What's your opinion on downpipe (DP) requirement?
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DP is only required for 2+.
Stage 1 can be applied to a stock car, but of course CP is basically a requirement.
Stage 2 is for IC
or DP upgraded.
Stage 2+ is for IC and DP upgraded.
I had these questions and confirmed with MHD via email. The website may not be totally updated but i believe the first page of the MHD thread is. Some people choose to deviate from these requirements, but personally i would not flash 2+ without DP and IC. Maybe without the IC if your ambient temps are never above 50F and you carefully monitor IATs.
EDIT: FWIW i have a IC+CP upgraded and chose to just do stage 1 even though i could have went from stock to 2. I did this intentionally to feel the change and leave more on the table. I just ordered a fabspeed catted DP and will be going from 1 to 2+ after that install; should be another huge jump. Stage 1 is a noticable improvement over stock.