This is my next step.. I ordered the Magnaflow X-pipe today! thought I must say I LOVE the sound of the 4.8 with just the X pipe but from what I hear the 4.6 with just the X pipe does not sound anything like that due to the Valvetronic engine
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Originally Posted by LeMansX5
Replace resonator with Magnaflow X-pipe. Leave the mufflers alone. I feel no loss of power or torque. I can post a before and after video if you want, but mine is 4.8is.
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