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Porsche > 911 & 912 (1965-1989) > Exhausts >

Sport Silencers / Mufflers

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Exhaust Muffler / Silencer Bypass. Porsche 911 1974-89 - 91122091102, 93011102200, 93011102203, 93011104300, 93011104301
2
Exhaust Muffler / Silencer Bypass. Porsche 911 1974-89
FSPOR911MB
Product Information
Product Information
Fabspeed Muffler Bypass Pipe with Adjustable Turndown

Reduce weight, increase power, and improve sound with bypass pipes for both the primary and secondary mufflers; includes adjustable turndown tip for exhaust volume control.

FEATURES:
• Fits: Porsche 911 3.0L / Carrera 3.2L 1974-83 all models
• Very aggressive CUP car sound. Recommended for Track Use ONLY!
• Adds 14whp and significant throttle response
• Constructed from 14-16 gauge, T304 C.N.C. Mandrel bent stainless steel
• Saves 25 lbs from the vehicle
• Direct replacement for OEM muffler works with stock cats and fabspeed's catbypass pipes
• Easy on and easy off installation, perfect for weekend Track Events
• System comes with outlet pipe, clamp and slip-on turndown
• All Fabspeed performance products are backed by the Fabspeed Lifetime Limited Warranty

Please note: This is a special-order item manufactured to order. In some cases, please allow 4 – 5 weeks for the delivery. Special order items cannot be cancelled from this supplier once your order has been placed.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

FSPOR911MB
91122091102
93011102200
93011102203
93011104300
93011104301

The product you are viewing cross references to these numbers
Exhaust Muffler / Silencer Dual Outlet. Porsche 930 Turbo - 93011103806, 93011103852, 93011103700, 93011103704, 93011103712, 93011102502, 93011102504, 93011102505
3
Exhaust Muffler / Silencer Dual Outlet. Porsche 930 Turbo
FSPOR911TMAXD
Product Information
Product Information
Exhaust Muffler / Silencer Dual Outlet.

MAXFLOW outperforms any and all other systems manufactured. Super strong heavy gauge thick 14 gauge T304SS Mirror polished finish. Show car quality! Stainless bracket included. No resonance and never too loud BUT with maximum. Huge reduction in TURBO lag.

FEATURES:
• Fits: all Porsche 911 Turbo 930 vehicles (1976-1989); USA and European cars
• Adds 15hp for improved throttle response
• Improved sports car sound with a much deeper, more aggressive exhaust note
• Constructed with 3.0" 14-16 gauge T304L C.N.C. mandrel bent stainless steel tubing for maximum performance and durability
• Maxflo Mufflers are radius stress relieved, hydro-formed cases that are pulse TIG welded with 2000 degree ceramic fiber and stainless steel wool packing.
• Available in single or dual outlet configuration
• Includes Fabspeed's Deluxe Oval or Quad Style Tips
• Simple bolt-on installation to the stock or K27 Turbo
• All Fabspeed performance products are backed by the Fabspeed Lifetime Limited Warranty

Please note: This is a special-order item manufactured to order. In some cases, please allow 4 – 5 weeks for the delivery. Special order items cannot be cancelled from this supplier once your order has been placed.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

FSPOR911TMAXD
93011103806
93011103852
93011103700
93011103704
93011103712
93011102502
93011102504
93011102505

The product you are viewing cross references to these numbers
Sports exhaust rear silencer ANSA-like. Porsche 911 1965-73 - 91111102500, 91111102505 - 1620615600
10
Sports exhaust rear silencer ANSA-like. Porsche 911 1965-73
1620615600
Product Information
Product Information

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
91111102500
91111102505

The product you are viewing cross references to these numbers
DISPLAYING 1 to 3 (of 3 products)
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About Sport Silencers / Mufflers

Porsche Sport Silencers & Mufflers - Performance Sound & Exhaust Upgrades

Sport Silencers / Mufflers are designed to enhance the sound, performance, and driving character of your Porsche by improving exhaust gas flow and delivering a more engaging exhaust note. Compared to standard exhaust silencers, sports mufflers reduce restriction, sharpen throttle response, and provide a sportier tone that better reflects Porsche’s performance heritage.

Available from Design911, this category includes both genuine Porsche sport exhaust components and high-quality aftermarket performance mufflers, giving owners the choice between factory-engineered authenticity and performance-focused customisation.

What Do Sport Silencers / Mufflers Do?

Sport silencers optimise exhaust flow while enhancing sound quality.

Core Functions:

  • Reduce exhaust backpressure for improved engine breathing.
  • Enhance throttle response and power delivery.
  • Produce a deeper, sportier exhaust note.
  • Improve exhaust efficiency and flow dynamics.
  • Enhance the overall driving experience.

A well-designed sports muffler balances performance gains with refined sound control.

Why Do Standard Exhaust Silencers Fail or Fall Short?

Standard exhaust mufflers are designed primarily for noise reduction, emissions compliance, and longevity. Over time, common issues include:

  • Internal corrosion from condensation and heat cycles.
  • Restrictive baffling limiting exhaust flow.
  • Dull or muted exhaust sound.
  • Internal baffle breakdown causing rattles.
  • Reduced efficiency when paired with performance upgrades.

As these components age, both performance and sound quality can deteriorate.

Why Upgrade to Sport Silencers / Mufflers?

Sport silencers are engineered to improve both performance and auditory feedback.

Upgrade Benefits:

  • Improved exhaust flow and reduced restriction.
  • Enhanced exhaust sound without excessive drone.
  • Increased driving engagement and responsiveness.
  • Available in OEM Porsche or performance aftermarket options.
  • Ideal for road, touring, and spirited driving.

Upgrading delivers a more exciting exhaust character while supporting engine efficiency.

Highlights

  • Porsche sport silencer and muffler upgrades
  • OEM Porsche and premium aftermarket options
  • Improved exhaust sound, flow, and performance
  • Designed for performance-focused driving
  • High-quality materials for durability and reliability       

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