Macs 2781 Long Exhaust System – Precision-engineered for seamless integration with the K&B .65 Sportster engine

High-performance HPI Racing #6751 linear spring designed for precise suspension tuning—13 mm inner diameter, 25 mm free length, orange anodized finish, and a rate of 345 grams per millimeter. Compatible with HPI Nitro 3 Evo and Sprint 2 RC vehicles.