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GT, GTP,GS & XR8 »

XR8 5.4L Boss (FG)

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!

XR8 5.4L Boss (FG) Kits:

Stage 1 - 320kw
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 - 330kw
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!
Stage 3 - 375kw Extreme Kit
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!