We're still waiting to hear about the upgrades to the Dart's 2.4-liter four-pot, but Dodge has gone ahead and released the details on the upgrades to the 5.7-liter Hemi V8 in the Challenger and ...

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AEV currently churns out 250 conversions annually ... as well as the 372-hp, 5.7-liter Hemi ($20,750). Should you require more power—God knows why—the 425-hp, 6.1-liter Hemi will set ...