- WSRD XR42 Turbocharger Packages
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WSRD Tune Fuel Octane Boost - PSI Crack Pressure WS220RR-XR.91 91/93 Octane 20 - WS220RR-XR.93 93 Octane 22 - WS280RR-XR 98+ Octane 26 - WS320RR-XR E85 32 - WS360RR-XR E85 36 - - Stock Engine Power Production:
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WSRD Tune Fuel Octane Hub HP Crank HP WS220RR-XR.91 91 Octane 220 244 WS220RR-XR.93 93 Octane 258 286 WS280RR-XR 98+ Octane 326 362 WS320RR-XR E85 343 381 WS360RR-XR E85 355 394