Fabspeed Maxflo Performance Exhaust Porsche 986 Boxster (1997-2004)

The Fabspeed Maxflo Performance Exhaust System is one of the most effective upgrades available for the Porsche 986 Boxster, delivering a deeper exhaust note, improved performance, and significant weight savings over the factory muffler. Designed to enhance the driving experience without sacrificing daily usability, the Maxflo transforms the sound of the 2.5L, 2.7L, and 3.2L flat-six engines with a more aggressive, sports car-inspired tone.

Unlike the restrictive factory exhaust, the Maxflo utilizes a straight-through performance muffler design that improves exhaust flow while maintaining a refined sound character during normal driving. Under acceleration, the system produces a richer, more pronounced flat-six exhaust note that better matches the Boxster's mid-engine sports car personality.

Constructed from premium T304 stainless steel and engineered for direct bolt-on installation, the Maxflo Performance Exhaust is the perfect upgrade for enthusiasts looking to improve sound, reduce weight, and enhance overall driving enjoyment without excessive cabin drone.

Fitment Notes

• Fits Porsche 986 Boxster 2.5L (1997–1999)
• Fits Porsche 986 Boxster 2.7L (2000–2004)
• Fits Porsche 986 Boxster S 3.2L (2000–2004)
• Direct replacement for the factory rear muffler assembly
• Compatible with factory exhaust manifolds and catalytic converters
• Works with OEM and most aftermarket exhaust components
• 1997–1999 US-spec Boxster Maxflo STREET systems include integrated HJS high-flow sport catalytic converters for improved performance while maintaining emissions compliance
• 1997–2004 European and Rest-of-World (R.O.W.) Boxster Maxflo STREET systems include HJS high-flow sport catalytic converters and are designed to remain emissions compliant without triggering a Check Engine Light
• 2000–2004 US-spec Boxster models are equipped with two sets of catalytic converters from the factory. The Maxflo system removes the redundant secondary catalytic converters while retaining the primary catalytic converters, and will not trigger a Check Engine Light
• 1997–1999 Boxster Maxflo RACE Performance Exhaust systems replace the catalytic converters with cat-bypass pipes and feature factory-position O2 sensor bungs
• Maxflo RACE systems are intended for off-road and track-use vehicles only and are not emissions compliant for street use

Included

• Fabspeed Maxflo Performance Exhaust System
• Dual exhaust tips
• Installation hardware
• Required clamps and mounting components

Product Specs

• Material: T304 stainless steel construction
• Power/Torque gains: +8whp/8ft-lbs
• Exhaust Design: Straight-through performance muffler
• Exhaust Tips: Dual polished stainless steel tips
• Construction: CNC mandrel-bent tubing
• Installation: Direct bolt-on replacement
• Weight Savings: Approximately 30 lbs lighter than factory exhaust
• Made in the USA

Product Features

• Produces a deeper, more aggressive Porsche flat-six exhaust note
• Improves exhaust flow compared to the restrictive factory muffler
• Lightweight stainless steel construction reduces rear-end weight
• Minimal cabin drone during normal driving conditions
• Direct bolt-on installation with OEM-quality fitment
• Premium polished exhaust tips enhance rear-end appearance

The Maxflo Performance Exhaust is an ideal first modification for the Porsche 986 Boxster. It delivers the sound and character many enthusiasts feel the car should have had from the factory while maintaining the comfort and drivability that make the Boxster such a rewarding sports car.