Gen 3 SPD Trombone.

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Johnny@Apollo-Optics

Johnny@Apollo-Optics

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So it sounds more like a Gen 2? Hmm.
Kyle has a gen 2 with a trombone, hx muffler and spd downpipes, my truck has spd downpipes and the improved trombone and they still sound different. Mines a bit deeper of a tone in normal mode,
 
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