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View Full Version : Time for some upgrades xb9s



Sawyer
10-22-2007, 09:40 AM
I was talking to my mechanic and he said he recently did a fuel injection upgrade to an xb9sx with a K&N air filter and modified the standard exhaust to increase the airflow but maintain the original look. In his opinion it runs better then he has ever had an xb9 run before. Has anyone done an upgrade like this before? Or have any recommendations on the best combination when upgrading.

I also talked to him about an ECM upgrade to a race ECM, apparently the race ECM has been outlawed, is this true?

LeFox
10-22-2007, 10:20 AM
if you increase the airflow, the ecm must either be remapped or you should place a race ecm.

preffered is remapping the ecm.

there are several topics in here about these upgrades that would give you an idea what to do.

BuellPartsGuy
10-22-2007, 03:40 PM
The race ECM has not been outlawed. They are still available at any dealer. The Race Kits have been discontinued due to EPA regulations getting tighter. The Kits consisted of a high flow air filter, a race ECM, and a low restriction dual exit satin silver or polished muffler.