Recent content by mafern21

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Switching from 4th gen to 5th gen

4th Gen You should have kept the 4th gen . I've got both but the 4th gen is my favorite!
- mafern21
- Post #7
- Nov 15, 2025
- Forum: 4th Gen T4Rs
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5100 vs 5160 video

5160's Wow i with I would have seen that vid before I got the 5160's.
- mafern21
- Post #2
- Nov 15, 2025
- Forum: 4th Gen T4Rs
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Doug Thorley headers...successful install stories.

HP and Torque Increase For those who installed the Thorley short pipes, what is the average HP and torque increase if any?
- mafern21
- Post #75
- Nov 15, 2025
- Forum: 4th Gen T4Rs
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Doug Thorley headers...successful install stories.

HP and Torque Increase For those who installed the Thorley short pipes, what is the average HP and torque increase if any?
- mafern21
- Post #74
- Nov 15, 2025
- Forum: 4th Gen T4Rs