The cost to supercharge a 5.7L Hemi engine ranges from $4,500 to $12,000+

A supercharger for a 5.7L Hemi typically costs $4,500-$12,000, including parts, labor, and tuning. The price varies based on kit type (centrifugal vs. roots), power goals, and supporting mods like fuel upgrades or cooling. DIY installs cut labor costs but require expertise.

Key Cost Factors

  • Supercharger Kit Type: Centrifugal ($3,500-$6,500) vs. Roots-style ($5,000-$9,000+).
  • Labor: $1,000-$3,500 (shop rates vary; 8-15 hours typical).
  • Supporting Mods: Fuel injectors ($500-$1,200), intercooler ($800-$2,000), tuning ($500-$1,500).
  • Power Level: 500-650hp (stock block) vs. 700+hp (built engine, +$3,000-$6,000).

Cost Comparison by Supercharger Type

Type Avg. Kit Cost Labor Cost Total Estimate Power Gain Pros/Cons
Centrifugal $3,500-$6,500 $1,000-$2,500 $4,500-$9,000 100-200hp ✅ Linear power, lightweight. ❌ Lag at low RPM.
Roots (TVS) $5,000-$9,000 $1,500-$3,500 $6,500-$12,500 150-250hp ✅ Instant torque, iconic whine. ❌ Heavier, more heat.
DIY (Used Kit) $2,500-$4,500 $0 (self-install) $2,500-$6,000 80-150hp ✅ Budget-friendly. ❌ Risk of improper tuning.

Hidden Costs to Budget For

  • Dyno Tuning: $500-$1,500 (mandatory for reliability).
  • Fuel System: Upgraded pump ($300-$600), injectors ($500-$1,200).
  • Cooling: Larger radiator ($400-$900) or oil cooler ($200-$500).
  • Drivetrain: Clutch ($800-$1,500) or torque converter ($1,000-$2,000) for manual/auto.
  • Warranty Void: Factory warranty may be voided; extended coverage adds $1,000-$3,000/year.

Ways to Reduce Costs

  1. Buy Used: Check forums for lightly used kits (save 30-50%).
  2. Stage the Build: Start with a basic kit, add supporting mods later.
  3. Group Purchases: Buy fuel/injector upgrades as a bundle.
  4. Self-Install: Save $1,000+ with mechanical experience (requires tools/scanner).
  5. Skip Cosmetics: Avoid polished finishes or branded parts for savings.

Long-Term Costs to Consider

  • Maintenance: Supercharger oil changes ($50-$100) every 50K miles.
  • Insurance: Premiums may rise 10-30% for modified engines.
  • Resale Value: Mods rarely recoup costs; stock vehicles often sell faster.
  • Engine Longevity: Higher boost reduces lifespan; built internals add $3,000-$6,000.