MustangMike
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- Local time
- 5:08 AM
- User ID
- 338
- Joined
- Dec 30, 2015
- Messages
- 11,433
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- Location
- Brewster, NY
Interesting stuff, but even after you open up the new mufflers to breath like the older ones, the older (5.1 Hp 044s) and 1st year 046s (w/D chamber) will often out run their subsequent "improved" versions.