So, I got my hands on a 3.0 Alien cowling made by Chris Dunn. The question is can I run it without any mods to my ECU to account for the extra airflow? Dont want to hurt my motor. I am running a 2005 225 Pro XS.
So, I got my hands on a 3.0 Alien cowling made by Chris Dunn. The question is can I run it without any mods to my ECU to account for the extra airflow? Dont want to hurt my motor. I am running a 2005 225 Pro XS.
So the last thread I saw about this subject went something like this: yes, no, yes, no, yes, no, yes, no, yes, no, yes, no, yes, no, yes, no, yes, no, yes, no!!!!!
Good luck. Personally I don't know either way, but I have a relative who has been running one on a 250 Pro XS for two+ years with no issues "with no calibration".
2008 Allison XB21 2+2
2011 Mercury 300XS
I bought one earlier this year and haven't seen any negative effects other than it is noisier than the stock 300xs cowl. The rig runs the same with or without it. I believe it looks better than stock. The person I purchased it from said the same thing, he was also running a 300xs.
They are noisy but muffle the compressor noise, i wish I had a stock cowl for family days on water...
I would call Joe from DBR and ask him
2013 Allison XB-21 BasSport Pro
2023 Mercury Racing 300R
Bravo FS 30P
ProMax 30P
Dad has one on his 250xs and there’s nothing done to the ecu... runs perfect
97 Allison XB2003/ 250 Proxs
Seams like your supposed to move the air temp sensor to make up for the change in the air flow. Dbr can tell you.
2020 Allison XB 21
Merc 300R
2018-SST Bullet
Merc 300R
Bullet 20XD
300XS DBR
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