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torque increase over stock
mirror polished stainless steel tips to fit perfectly inside openings for Factory Ground Effects kit
LS6 cylinder heads (required for LS1 equipped vehicles
these braces replace the factory stamped steel design
MTI Racing dual valve spring kit with retainers
Dodge Challenger Engine Upgrade Package Stage 2 5.7L, 6.1L, 6.4L HEMI Headers torque increase over stockDodge Challenger Engine Upgrade Package Stage 2 5. 7L, 6. 1L, 6. 4L HEMI Note: Must install Starter Package and Stage 1 Package Previously Anticipated HP increase over stock HP 70 100 HP depending on displacement of engine. MTI Racing Camshaft Parts $2675 Labor $2500 $ 5175 Note: Starter Package includes MTI Racing Chassis Dyno Computer Programming that is charged according to model year of the car. Some year models are more expensive than others. See