Thread: Doug Thorley Headers

Anytime you free up the exhaust you are doing a good thing.

But you should know that with the addition of headers, things will change with the powerband. Power will more at the top end now and some of the neck snapping will be gone and moved to higher rpms.

As for how much HP you will get, I am not really sure, maybe 15-20 more hp.

and them mufflers should be good.

Gotta a couple friend withGXP's running Super 44 mufflers, IMO sounds great. Not sure the HP gains from headers are worth the grand they cost though