XR8 5.4L BOSS(BA/BF) Kits:
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Stage 1 - 280kw
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| The 260kw, then 290kw Boss engine powered the XR8 against the arguably superior XR6 Turbo. Again, when combined with the right mods the XR8 could really perform and sound a lot better to boot! |
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Stage 2 - 300kw
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| The 260kw, then 290kw Boss engine powered the XR8 against the arguably superior XR6 Turbo. Again, when combined with the right mods the XR8 could really perform and sound a lot better to boot! |
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Stage 3 - 315kw
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| The 260kw, then 290kw Boss engine powered the XR8 against the arguably superior XR6 Turbo. Again, when combined with the right mods the XR8 could really perform and sound a lot better to boot! |
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Stage 4 - 420kw
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| The 260kw, then 290kw Boss engine powered the XR8 against the arguably superior XR6 Turbo. Again, when combined with the right mods the XR8 could really perform and sound a lot better to boot! |
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