Originally Posted by cosmogirl

I may have a potential member selling his gtm fuel return system/fuel rails and wanted to see who else has this setup? Pros and cons...

Originally Posted by 1slow370

no need for fuel dampers on a returnless system since our cars don't have an issue with it. subarus develop a lean spot at a specific rpm range if they dont have enough lines or damper. braided line also expands and acts as a damper as well so when you add a -6/-8 supply line you are adding one giant damper. lots of guys are running rails with no dampers and not having an issue, it only matters when you have a lean spot that can't be tuned out and always develops at the same rpm, usually on the cylinder furthest from the inlet on the rail, which can also be caused by not enough pressure or pump. returnless it is a bigger issue