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Fits:
Porsche 911 - 1965 to 1989
For cars with (1965-1974) early style heat exchangers/headers
Product Description
Elevate the sound and performance of your Porsche 911 with this lightweight titanium valved exhaust system by Rennline. Designed for enthusiasts, it features dual vacuum-actuated valves that let you control the exhaust note instantly. When closed, it delivers a sporty enhancement over the stock sound. Open the valves, and you'll release a deep, race-inspired roar during acceleration, accompanied by an exhilarating rasp on deceleration that’s sure to send chills down your spine. Best of all, there’s no drone or harsh tones—just the pure, balanced music of your engine.
This exhaust is a direct bolt-on replacement for vehicles with dual header-to-muffler flanges, allowing for a seamless installation and easy reversibility to stock. While the factory exhaust weighs approximately 25 lbs, this titanium upgrade comes in at just 12.88 lbs—saving you over 12 lbs while transforming your driving experience.
Product Fitment:
- 1965-1973 with early style headers/heat exchangers
- 1974-1989 with retro-fit early (1965-1973) style headers/heat exchangers
Not sure if it fits? The center-to-center measurement for the muffler inlet is 22.875".
Upgrade your Porsche’s sound and shed weight with this ultimate performance exhaust!
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EX29.2
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- 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

Fits:
Porsche 911 S (mech. injection) 2.4L 08/71-07/73
Porsche 911 T/E/S (not mech. injection) 2.0L-2.4L 01/63-12/73
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1620612100
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Dansk Motorsport Sport Exhaust Rear Silencer
Fits:
Porsche
911 1965-1968 2.0L
Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB
To celebrate 50 years of JP Group, we proudly present
a unique ANSA-inspired sports exhaust designed exclusively for the Porsche
911 F-model (1965-73). This Dansk Motorsport Retro version combines
period-correct styling with modern engineering, delivering the perfect blend of
authentic looks, classic Porsche sound, and reliable performance.
Every detail has been carefully designed — from the tailpipe shape and baffling to the precise positioning — ensuring this system not only performs but also captures the spirit of the original 911.
Each exhaust comes with a special mounting bracket and template, allowing for safe, secure installation. The adjustable fitting design means it accommodates individual rear valence modifications, ensuring compatibility across restored and personalised vehicles.
Why Replace or Upgrade?
- Authenticity
Restored – perfect for classic Porsche enthusiasts seeking the true
retro sound and look.
- Improved
Exhaust Flow – enhances engine performance and responsiveness.
- Quality
Construction – modern Dansk engineering ensures durability beyond the
original ANSA systems.
- Secure
Fitment – included bracket and template allow safe installation
without guesswork.
- Iconic Sound – hear it for yourself in our Porsche Sound Studio, with two live demonstration videos available in the Sport Exhaust section.
Upgrade your Porsche 911 with the Dansk Motorsport Retro Sport Exhaust – a faithful, high-quality tribute to the original ANSA system, now available and ready to ship.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1620615600
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Sport Silencers
Porsche 2 IN / 2 OUT Sports Silencers - Maximum Flow & Sport Exhaust Sound
2 IN / 2 OUT Sports Silencers are high-performance exhaust components designed for Porsche models with dual inlet and dual outlet exhaust systems. By optimising exhaust flow from both cylinder banks, these sports silencers reduce backpressure, enhance throttle response, and deliver a more aggressive, motorsport-inspired exhaust tone.
Available from Design911, Porsche 2 IN / 2 OUT sports silencers are engineered to provide balanced exhaust flow, improved performance, and a distinctive sound upgrade while maintaining everyday drivability.
What Do 2 IN / 2 OUT Sports Silencers Do?
These sports silencers manage and enhance exhaust flow from dual exhaust banks.
Core Functions:
- Reduce exhaust restriction and backpressure.
- Improve exhaust gas evacuation from both banks.
- Enhance throttle response and power delivery.
- Deliver a sportier, more aggressive exhaust tone.
- Maintain balanced flow across the exhaust system.
Efficient dual-bank exhaust flow is essential for high-performance applications.
Why Do Standard Exhaust Silencers Fail?
Factory exhaust silencers are designed primarily for noise
control and longevity. Over time, they can suffer from:
- Internal corrosion from moisture and heat cycles.
- Restrictive baffling limiting exhaust flow.
- Internal component collapse or rattling.
- Increased backpressure as components degrade.
- Incompatibility with performance tuning upgrades.
Failing silencers can lead to power loss, dull sound, and exhaust leaks.
Why Upgrade to 2 IN / 2 OUT Sports Silencers?
Sports silencers are engineered to enhance both performance and sound.
Upgrade Benefits:
- Improved exhaust flow and reduced restriction.
- More aggressive, performance-focused exhaust sound.
- Enhanced throttle response and engine breathing.
- Durable construction for high-heat environments.
- Ideal for tuned, track, and performance road cars.
Upgrading transforms both the sound and driving experience of your Porsche.
Highlights
- Porsche 2 IN / 2 OUT sports silencer upgrades
- Maximum exhaust flow for dual-bank systems
- Aggressive, motorsport-inspired exhaust tone
- Designed for performance and enthusiast driving
- High-quality materials for durability