Originally Posted by paradoxical3
I hate bumping this thread, but I figure it's better than starting a new one. Is this kind of PSI okay to run on a car with no downpipe? It seems so tempting but I'm concerned about the backpressure on the turbo running that much boost through stock downpipes.
Can e85 be run without downpipes safely?
I wouldnt but you can if its not ALL the time.
Current: 2013 335i 6mt msport
BMS Clutch Stop, JB4, Slightly Modified OEM Muffler
Past: 2011 335i coupe
369 whp/444 torque. (Procede
, Custom Turboback Exhaust, BMS Intake, ER FMIC)