I wouldn't have said that template was particularly accurate. Don't forget when working with anything exhaust related you want to work to as smaller tolerances as possible to avoid leaks. Do you not have a scalpel or similar you can use to cut the holes out? It looks as if you have jabbed holes with a pencil.
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2000 Moonstone 1.8 Meridian - Sold
2000 China 3dr XS - Dead
1998 Diablo 3dr XSI