Stage Package Upgrades

SpeedFactory Upgrade Packages are applicable to most 2006-2010 SRT8 models of Dodge Charger, Dodge Challenger, Dodge Magnum, Chrysler 300 and Jeep Grand Cherokee models.

Most 2006 and later R/T models also qualify for SpeedFactory upgrade packages, please contact us for specific details.

It’s easy to upgrade your ride! We make it easy to ship your car to our Atlanta build center.

SPEEDFACTORY Stage I Upgrade

Naturally Aspirated 475 HP upgrade package: $2,995.00

    Standard Equipment:

  • High volume air intake (CARB certified)
  • Stainless steel cat back exhaust
  • Performance tune (includes Predator® ECU programmer)
  • SpeedFactory Signature Package (badges, exterior graphics and floor mats)

    Optional Equipment:

  • Handling package (race inspired sway bars, progressive wound springs): $1395.00
  • Front and rear strut tower braces: $1295.00
  • SpeedFactory-branded embossed premium leather seats and door panels: $1799.00
  • Brembo GT 6 Piston Front Calipers with 15” cross drilled or slotted rotors available $4350.00
  • Brembo GT 8 Piston Front Calipers with 15” cross drilled or slotted rotor available $4650.00
  • Brembo GT-R full race brake option $14,995.00

    Includes Billet 6 Piston Nickel Finish front caliper with 15” cross drilled or slotted Rotor and Billet 4 Piston Nickel Finish rear caliper with 15” cross drilled or slotted rotor
  • 20X9 BBS® CHR wheels (black or silver finish) for use with stock tires: $2780.00
  • Staggered BBS® CHR wheels (black or silver finish) with Michelin® Pilot Sport PS2 tires (Front: 20×9, 255/40ZR20, Rear: 20×10.5, 295/35ZR20): $4480.00
  • Other custom wheel and tire styles, colors and fitments available to suit your taste

Disclaimer: pricing shown is for upgrade package only. HP figures are from the crank and are approximate. HP figures shown are for 2008-2010 Dodge Challenger SRT8 models with stock 6.1L Hemi V8 motors; other vehicles and motor configurations will yield different results.

EMAIL US for more information or CALL 800.726.4044

SPEEDFACTORY Stage II Upgrade

Naturally Aspirated 500+ HP upgrade package: $10,295.00

    Standard Equipment:

  • High volume air intake (CARB certified)
  • 85mm throttle body
  • 500 series cam
  • 500 series ported heads
  • Stainless steel cat back exhaust
  • Performance tune (includes Predator® ECU programmer)
  • Handling package (race inspired sway bars, progressive wound springs)
  • SpeedFactory Signature Package (badges, exterior graphics and floor mats)

    Optional Equipment:

  • Long tube stainless steel headers and mid pipes: $1650.00
  • Front and rear strut tower braces: $1295.00
  • SpeedFactory-branded embossed premium leather seats and door panels: $1799.00
  • Brembo GT 6 Piston Front Calipers with 15” cross drilled or slotted rotors available $4350.00
  • Brembo GT 8 Piston Front Calipers with 15” cross drilled or slotted rotor available $4650.00
  • Brembo GT-R full race brake option $14,995.00

    Includes Billet 6 Piston Nickel Finish front caliper with 15” cross drilled or slotted Rotor and Billet 4 Piston Nickel Finish rear caliper with 15” cross drilled or slotted rotor
  • 20X9 BBS® CHR wheels (black or silver finish) for use with stock tires: $2780.00
  • Staggered BBS® CHR wheels (black or silver finish) with Michelin® Pilot Sport PS2 tires (Front: 20×9, 255/40ZR20, Rear: 20×10.5, 295/35ZR20): $4480.00
  • Other custom wheel and tire styles, colors and fitments available to suit your taste

Disclaimer: pricing shown is for upgrade package only. HP figures are from the crank and are approximate. HP figures shown are for 2008-2010 Dodge Challenger SRT8 models with stock 6.1L Hemi V8 motors; other vehicles and motor configurations will yield different results.

EMAIL US for more information or CALL 800.726.4044

SPEEDFACTORY Stage III Upgrade

Supercharged 600 HP upgrade package: $12,995.00

    Standard Equipment:

  • Vortech® V3 self-contained supercharger system polished finish (black ceramic finish additional $250)
  • Air to water charge cooler
  • Increased fuel flow and larger injectors
  • Certified installation
  • Stainless steel cat back exhaust
  • Performance tune (includes Predator® ECU programmer)
  • 3 year/36,000 mile Powertrain Limited Warranty
  • Handling package (race inspired sway bars, progressive wound springs)
  • SpeedFactory Signature Package (badges, exterior graphics and floor mats)

    Optional Equipment:

  • SpeedFactory Power-Tec 2.4L twin screw supercharger option: $1000.00
  • Front and rear strut tower braces: $1295.00
  • SpeedFactory-branded embossed premium leather seats and door panels: $1799.00
  • Brembo GT 6 Piston Front Calipers with 15” cross drilled or slotted rotors available $4350.00
  • Brembo GT 8 Piston Front Calipers with 15” cross drilled or slotted rotor available $4650.00
  • Brembo GT-R full race brake option $14,995.00

    Includes Billet 6 Piston Nickel Finish front caliper with 15” cross drilled or slotted Rotor and Billet 4 Piston Nickel Finish rear caliper with 15” cross drilled or slotted rotor
  • 20X9 BBS® CHR wheels (black or silver finish) for use with stock tires: $2780.00
  • Staggered BBS® CHR wheels (black or silver finish) with Michelin® Pilot Sport PS2 tires (Front: 20×9, 255/40ZR20, Rear: 20×10.5, 295/35ZR20): $4480.00
  • Other custom wheel and tire styles, colors and fitments available to suit your taste

Disclaimer: pricing shown is for upgrade package only. HP figures are from the crank and are approximate. HP figures shown are for 2008-2010 Dodge Challenger SRT8 models with stock 6.1L Hemi V8 motors; other vehicles and motor configurations will yield different results.

EMAIL US for more information or CALL 800.726.4044

SPEEDFACTORY Stage IV Upgrade

Naturally Aspirated 600 HP Gen III 426 HEMI upgrade package: $30,995.00

    Standard Equipment:

  • Gen III 426 HEMI with forged internals
  • Mahle pistons pins and rings (10.3-1 compression)
  • 4340 forged crank
  • 4340 H beam forged rods
  • Balanced rotating assembly
  • ARP studs/bolts
  • ATI damper
  • Cometic gaskets
  • CNC ported heads with new valves, guides, seals, Bee Hive springs & Ti retainers
  • 85mm Throttle body
  • Stock manifold CNC port matched w/blended intake plenum
  • Comp hydraulic cam
  • Billet main caps
  • Matched bearings
  • Clear powder coated front covers
  • Dyno tested
  • High volume air intake (CARB certified)
  • Stainless steel cat back exhaust
  • Centerforce clutch (for manual transmission cars)
  • Level I automatic transmission (for automatic transmission cars)
  • Performance tune (includes Predator® ECU programmer)
  • Front and rear strut tower braces
  • 20X9 BBS CHR wheels (black or silver finish)
  • Speedfactory Signature Interior Package: premium leather seats and door panels with embossed SpeedFactory branding, floor mats, badging, exterior graphics

    Optional Equipment:

  • 1000 HP half shafts: $2520.00
  • Optional long tube stainless steel headers and mid pipes: $1650.00
  • Brembo GT 6 Piston Front Calipers with 15” cross drilled or slotted rotors available $4350.00
  • Brembo GT 8 Piston Front Calipers with 15” cross drilled or slotted rotor available $4650.00
  • Brembo GT-R full race brake option $14,995.00

    Includes Billet 6 Piston Nickel Finish front caliper with 15” cross drilled or slotted Rotor and Billet 4 Piston Nickel Finish rear caliper with 15” cross drilled or slotted rotor
  • Staggered BBS® CHR wheels (black or silver finish) with Michelin® Pilot Sport PS2 tires (Front: 20×9, 255/40ZR20, Rear: 20×10.5, 295/35ZR20): $1700.00
  • Other custom wheel and tire styles, colors and fitments available to suit your taste

Disclaimer: pricing shown is for upgrade package only. HP figures are from the crank and are approximate. HP figures shown are for 2008-2010 Dodge Challenger SRT8 models with stock 6.1L Hemi V8 motors; other vehicles and motor configurations will yield different results.

EMAIL US for more information or CALL 800.726.4044

SPEEDFACTORY Stage V Upgrade

Supercharged 700 HP Gen III 426 HEMI upgrade package: $44,995.00

    Standard Equipment:

  • Vortech® V3 self-contained supercharger system polished finish (black ceramic finish additional $250)
  • Air to water charge cooler
  • Increased fuel flow and larger injectors
  • Certified installation
  • Gen III 426 HEMI with forged internals
  • Mahle pistons pins and rings (10.3-1 compression)
  • 4340 forged crank
  • 4340 H beam forged rods
  • Balanced rotating assembly
  • ARP studs/bolts
  • ATI damper
  • Cometic gaskets
  • CNC ported heads with new valves, guides, seals, Bee Hive springs & Ti retainers
  • 85mm Throttle body
  • Stock manifold CNC port matched w/blended intake plenum
  • Comp hydraulic cam
  • Billet main caps
  • Matched bearings
  • Clear powder coated front covers
  • Dyno tested
  • Stainless steel cat back exhaust
  • Performance tune (includes Predator® ECU programmer)
  • Custom boost configurations optional
  • Centerforce clutch
  • Level II transmission and torque converter (automatic only)
  • 1000 HP half shafts
  • Handling package (race inspired sway bars, progressive wound springs)
  • Front and rear strut tower braces
  • 20X9 BBS CHR wheels (black or silver finish)
  • Speedfactory Signature Interior Package: premium leather seats and door panels with embossed SpeedFactory branding, floor mats, badging, exterior graphics

    Optional Equipment:

  • SpeedFactory Power-Tec 2.4L twin screw supercharger $1000.00
  • Long tube stainless steel headers and mid pipes: $1,650.00
  • Brembo GT 6 Piston Front Calipers with 15” cross drilled or slotted rotors available $4350.00
  • Brembo GT 8 Piston Front Calipers with 15” cross drilled or slotted rotor available $4650.00
  • Brembo GT-R full race brake option $14,995.00

    Includes Billet 6 Piston Nickel Finish front caliper with 15” cross drilled or slotted Rotor and Billet 4 Piston Nickel Finish rear caliper with 15” cross drilled or slotted rotor
  • Staggered BBS® CHR wheels (black or silver finish) with Michelin® Pilot Sport PS2 tires (Front: 20×9, 255/40ZR20, Rear: 20×10.5, 295/35ZR20): $1700.00
  • Other custom wheel and tire styles, colors and fitments available to suit your taste

Disclaimer: pricing shown is for upgrade package only. HP figures are from the crank and are approximate. HP figures shown are for 2008-2010 Dodge Challenger SRT8 models with stock 6.1L Hemi V8 motors; other vehicles and motor configurations will yield different results.

EMAIL US for more information or CALL 800.726.4044