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Only mods are K&N filter and Nxt Step Performance axle back. Looking for what might be the best HP/value out there. If you had this setup, what would your next mod be? Happy Thanksgiving to all!
If you just have the K&N filter and not the whole new air intake, change the intake and add a Fast 102 as others have stated with some headers. Let her breathe. The 2005 intake and manifold was very restrictive.
Also, you have a 2005 M6. Be very careful with your differential as you add more power. You may need a upgrade if you go to high in the HP.
Jeff