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View Full Version : I have a sweet xb9s but?????



ryanlt81
10-11-2007, 03:43 AM
I wanted to know if anyone has a xb9s and have swapped the header pipe for a xb12s. The dealer said there is no clearence issues just better flow. I want to know if this is a good idea or not...

NL90
10-11-2007, 06:03 AM
Everything is worth a shot...
If anything you won't tell a difference.

LeFox
10-11-2007, 09:46 AM
unless fully tuned, you'll lose bottom-end power.

dmp0001
10-11-2007, 11:29 PM
on some choppers they use torque cones inside the headers, you might be able to use this method without sacrificing your low end, though I think the power band would have more dips and peeks.

06xb9r
10-12-2007, 12:17 AM
The torque cones make sense but will reduce flow witch would defeat the purpose in this case, right?
You shouldn't need a bigger header unless you have a bunch of other motor work done.

dmp0001
10-12-2007, 07:39 PM
I was suggesting the torque cones to use the headers as a cosmetic upgrade, as far as power goes you are going to have a hard time beating the stock headers! they are increadible and well designed