fxr thunderheader vs 2 into 1 exhaust: which one makes more power?
FXR Thunderheader vs 2-Into-1 Exhaust: Which Makes More Power? If you’re building a performance-focused FXR, one question always comes up: Should you run a Thunderheader or a different 2-into-1 exhaust? Both options are popular among riders of motorcycles from Harley-Davidson, especially those tuning club-style or torque-heavy FXR builds. But when it comes down to raw […]
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