Absolute CNC Products "Power Pipe" - Vortex Edition High-Performance Nitro Helicopter Muffler System Designed by Greggor McGrath The "Power Pipe" from Absolute CNC Products is a high-performance nitro helicopter muffler system, designed by long-time RC helicopter veteran Greggor McGrath-a passionate innovator with over 20 years in the RC helicopter hobby. Built from the ground up for pilots who demand precision, performance, and power, this exhaust system is the result of decades of flying, tuning, and pushing nitro to its limits. At the heart of this system is the uniquely engineered "Vortex Edition" header, a critical design component that transforms how power is built. CNC machined from premium 7075 billet aircraft aluminum, the Vortex header is engineered for maximum strength and heat resistance. This soft-mount style muffler begins the tuning process right where the engine meets the header, optimizing flow and pressure from the first stage. The Vortex header delivers high exhaust flow while maintaining ideal backpressure, giving your engine the torque and RPM range it was built for. Each Vortex header also features fully radiused O-ring grooves for outstanding O-ring support, greatly enhancing the sealing properties for long-term reliability. Tested extensively and proven to perform like an animal on: - O.S. 91 Speed - O.S. 105 - YS 91, YS 96, and YS 120 engines The Power Pipe delivers razor-sharp throttle response, noticeable gains in mid- to high-RPM power, and a deep, clean exhaust note. Whether you're flying aggressive 3D or precision maneuvers, this system is tuned to bring out the best in your nitro setup. Features: - Designed by Greggor McGrath - 20+ years of nitro RC experience - Vortex Edition header creates optimal backpressure and flow - Soft-mount style muffler for vibration damping and enhanced tuning precision - Exceptional performance on O.S. and YS nitro engines - CNC precision-built for strength, fitment, and durability Includes: - (1) Power Pipe Muffler - (1) Vortex Edition Header - (4) M3 Stainless Steel Flat Washers - (4) M3 x 16mm Cap Head Screws - (2) M4 x 10mm Cap Head Screws - (2) M4 x 45mm Cap Head Screws - (4) High-Temperature Silicone Flex Grommets - (2) High-Temperature Silicone O-Rings - (1) M4 Threaded and Barbed Nipple - (1) M4 x 5mm Button Head Screw - (4) Billet Aluminum Standoffs From backyard tuning to world-class performance, this is nitro done right. Welcome to the next generation of power. Welcome to Absolute CNC Products. Please note: Mufflers are considered consumables and are only eligible for return within 30 days of purchase if a manufacturing defect is present.
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