Quote:
Originally Posted by fordAU
When I fitted a redback system to my ELXR6 the power difference was negligible.
What made a reasonable difference were Pacemaker headers and a CAI.
If you are looking for a few more ponies headers are a must, imo they are a worthwhile mod with the Ford 6, made the vehicle a bit more responsive but don't expect to much.
Hope this is of some help to you.
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Agreed, on the 6s the extractors are what really makes the difference, catback will basically give you a 99% sound improvment, 1% performance improvement.