Magnaflow 08-10 BMW 535i 3.0L Direct Fit Converter Hardware the cat-back exhaust system resulted

the cat-back exhaust system resulted in gains up to +9 horsepower and +10 lbs

NHRA Legal Certification: Certain SKUs within the Pro Series I-Beam range have earned "NHRA Legal" certification

K&N intakes are designed to dramatically reduce intake restriction as they smooth and straighten air flow

so you no longer have to worry about breaking the OEM plastic boot ring when removing your shift knob

gently domed top

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