Classic Mesh Air Filter Set for Rennen ITB Upgrade. Porsche 911 / 964  ❭  ITBCMF911964

Rennen ITG Classic Mesh Air Filter Set for Rennen by JSR Individual Barrel Throttle Body Upgrades

The Rennen ITG Classic Mesh Air Filter Set is a bespoke six-piece filtration package designed specifically for Rennen by JSR Individual Barrel Throttle Body systems. Each filter is engineered to fit directly onto the Rennen velocity stacks, combining classic motorsport styling with practical engine protection.

Fits:

• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1978-1983 3.0L / SC
• Porsche 911 1984-1986 3.2L
• Porsche 911 1987-1989 3.2L G50
• Porsche 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 964 (911) RS 3.6L 1991-93
• Porsche 964 (911) RS 3.8L 1991-93

These filters use a mesh and foam construction to help protect the engine from dust, debris and airborne contaminants while allowing the ITB system to retain its free-flowing induction characteristics. The result is a period-inspired appearance with the essential filtration needed for road, fast-road and performance use.

Designed to complement the visual appeal of exposed velocity stacks, this filter set is ideal for Porsche owners who want the classic race-engine look while still helping protect valuable internal engine components.

What Do Classic Mesh Air Filters Do?

The air filters sit directly over the velocity stacks and filter incoming air before it enters the throttle bodies and combustion chambers.

They help provide:

• Protection from dust and debris
• Reduced risk of engine contamination
• Improved engine longevity
• Cleaner intake airflow
• Protection for cylinders, rings and valves
• Classic motorsport-inspired appearance
• Practical filtration for ITB conversions

Without suitable filtration, exposed velocity stacks can allow harmful particles to enter the engine.

Why Are Air Filters Needed with Barrel Throttle Bodies?

Rennen by JSR Barrel Throttle Bodies are designed for maximum airflow and instant throttle response. However, the open intake design means air is drawn directly into each throttle body.

Adding the correct filter set helps:

• Protect expensive engine internals
• Reduce premature engine wear
• Maintain reliable performance
• Support consistent tuning
• Preserve the benefits of velocity stacks
• Improve long-term durability
• Make the conversion more practical for road use

For any road-driven ITB-equipped Porsche, air filtration should be considered an essential part of the upgrade.

Why Choose the Rennen ITG Classic Mesh Filter Set?

This filter set is developed to fit Rennen velocity stacks correctly, offering a clean installation and authentic performance appearance.

Benefits include:

• Bespoke fit for Rennen velocity stacks
• Set of 6 individual filters
• Mesh and foam construction
• Classic exposed-stack styling
• Practical filtration protection
• Lightweight and compact design
• Ideal for Porsche ITB conversions
• Suitable for performance road and motorsport-style builds

Why Are Barrel ITB Upgrades So Popular?

Rennen by JSR Individual Barrel Throttle Bodies are one of the most desirable upgrades for naturally aspirated Porsche engines.

Benefits include:

• Instant throttle response
• Improved airflow efficiency
• Enhanced engine breathing
• Stronger performance potential
• Distinctive induction sound
• Greater tuning flexibility
• Motorsport-inspired engine bay appearance
• More engaging driving experience

The Classic Mesh Air Filter Set allows owners to enjoy the look and sound of velocity stacks while adding important engine protection.