Dodge Challenger Engine Upgrade Package Stage 1 5.7L, 6.1L, 6.4L HEMI GS Base price package includes porting

Base price package includes porting your supplied cylinder heads

superior on the track

Exhaust Runner Volume         85 stock     91  ported

LS1   243

mountain driving

Dodge Challenger Engine Upgrade Package Stage 1 5.7L, 6.1L, 6.4L HEMI GS Base price package includes portingDodge Challenger Engine Upgrade Package Stage 1 5. 7L, 6. 1L, 6. 4L HEMI Note: Must accomplish "Starter Upgrade Package" prior to Stage 1 Package Anticipated HP increase over stock engine HP 40 80 HP depending on displacement of engine. Headers Parts $1,000 Labor $600 $1,600 Exhaust Center Section Parts $ 700 With Header Install N C $ 700 $ 2,300 Note: You must accomplish "Starter Engine Upgrade Package" before installing Stage 1 upgrades, which