2026 Mongoose + Viper Master Breathing Kit – Classic Mini A-Series

Stainless LCB Exhaust & High-Flow Intake Manifold Package

Transform the way your Classic Mini breathes with the 2026 Mongoose + Viper Master Kit from JET Motors — a perfectly matched intake and exhaust solution engineered to unlock real-world power, torque, and throttle response across the entire A-Series range.

This complete performance package combines our Mongoose Stainless Steel LCB Exhaust Manifold with the Viper Stainless Intake Manifold, creating a fully balanced system that optimizes airflow from intake to tailpipe.

Designed to fit all Classic Mini A-Series engines — 850cc, 998cc, 1098cc, 1275cc, 1300cc, and wild 1380cc+ builds — the Master Kit is ideal for fast road, track day, and competition Minis.

The Mongoose LCB features T304 mandrel-formed stainless primaries and CNC-machined 316L merge flanges to improve exhaust scavenging, reduce back pressure, and increase power throughout the rev range. Paired with the Viper Intake’s high-flow stainless runner design, cylinder filling is improved while intake restriction is reduced, delivering sharper throttle response and a wider, stronger power band.

Individually, each component is a serious upgrade. Together, they form a complete breathing solution.

Master Kit Highlights

• Fits all Classic Mini A-Series engines (850–1380cc+)
• Matched stainless intake + LCB exhaust system for maximum airflow
• T304 stainless mandrel-bent exhaust tubing
• 316L CNC merge flanges for strength, precision, and durability
• High-flow Viper Intake Manifold for improved cylinder filling
• Increased horsepower, torque, and throttle response
• Corrosion-resistant stainless construction throughout
• Ideal for street, track, and race applications
• Designed and supplied by JET Motors

The Ultimate Classic Mini Breathing Upgrade

If you’re looking for the most effective way to upgrade your Classic Mini’s intake and exhaust in one go, the 2026 Mongoose + Viper Master Kit delivers modern stainless engineering with proven A-Series performance — from mild street builds to extreme 1380cc+ race engines.