Helical Technology High Performance Exhaust Valves for Custom Applications Brakes and more durable for increased

and more durable for increased performance and longevity

The perfect combination for maximum power without the worry of a check engine light

The GT3 Center Muffler Reinforcement Brace is designed to extend the fatigue life of any and ALL GT3 OEM Porsche factory center mufflers

air-fuel ratios

Stock = 385 HP / 369 TQ

Helical Technology High Performance Exhaust Valves for Custom Applications Brakes and more durable for increasedHelical Technology is the UK's foremost producer of high specification engine control systems supplied to many of the world's leading vehicle makers, manufacturing valves of the highest quality for some of the most technically advanced and difficult applications. Helical Valves are the standard for high performance OEM applications ranging from Ferrari and Porsche to Lamborghini, McLaren and more see the full list below. They offer a proven OEM