How about the Edelbrock e-force? Preliminary numbers 524 rwhp, with an available ENTIRE powertrain warranty 3 year 36K miles for about $300--kit is available for about $6500 plus install. Lingenfelter and all the others with exception being SLP (I believe) only warranty the motor or at best the motor and trans, not the rear end or axles. Food for thought! read the warranty word for word and the only specific exclusion is a change to the supplied tune....
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