- Local time
- 10:17 PM
- User ID
- 377
- Joined
- Jan 1, 2016
- Messages
- 18,792
- Reaction score
- 105,855
- Location
- Warren Center, PA
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I really found the benefits of a good muffler mod today. When I originally ported my 353 I just gutted the cat and opened up under the existing deflector. It ran good but I wasn't super impressed. After looking at Treemonkeys 2153 build I decided to add another hole. It runs night and day different with the second opening. Spools up faster and has a lot more balls.