Dramatically improves engine breathing

Boosts performance, efficiency & engine life

Gain +51 hp & +68 lb-ft torque, plus better MPG

Pass, merge, climb effortlessly +120 hp/+256 lb-ft

Gain the most power and save! Improves Passing, Merging, Towing

Gain +32 hp/+42 lb-ft, plus up to 5% more MPG

Gain +32 hp/+42 lb-ft, plus up to 5% more MPG

Dramatically improves efficiency, power & MPG

Gains up to +35 hp and +42 lb-ft, 5% more MPG

Gain +56hp & +70lb-ft, plus 7 Percent more MPG

Pass, merge, & climb effortlessly, +70hp/+92lb-ft

Dramatically improves efficiency, power & MPG

Gains +51 hp and +68 lb-ft torque, plus better MPG

Pass, merge, & climb effortlessly, +70hp/+92lb-ft

Gain +91 hp/+162 lb-ft, plus 11% more towing MPG