997.1 GT3RS - Dundon Street Header / Lifetime Muffler Power Package Exhaust Tips:PVD Black this airbox is good for

this airbox is good for about 8-10 whp

Paired with the Street Headers alone

Ribbed collar

On a Dundon Header equipped car

997.1 GT3RS - Dundon Street Header / Lifetime Muffler Power Package Exhaust Tips:PVD Black this airbox is good forDUNDON Street Header Lifetime Muffler Power Package 997. 1 GT3RS Add Power and great sound and experience your Porsches true capabilities with the Dundon Power Package. Intentionally designed to bring big power with and distinct sound we all love, this kit is perfectly tailored to add more muscle, better sound, and increased performance to your specific GT car. Package Includes: Street Headers Cobb AP w Pro Tune Lifetime Muffler Each application