I have quad tips on stock diffuser with no cutting at all. They fit perfectly. Not M5 exhaust, just AA but they're still 90mm tips. Not small lol
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Current: 2009 Nissan GT-R | 2012 Converted | Cobb Tuned | AMS Downpipes | Armytrix Exhaust | AFE Intakes
| Forgestar F14 + Pirelli P Zero 295/305
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Past: 2011 550i ///M Sport | 2010 M6 Coupe | 2004 BMW M3 Convertible | 2003 BMW 330i
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