do not press the back button…
-
Engine Parts
-
- Engine Electrical Batteries & Chargers Ignition Coil Speed / Reference / Knock Sensors
-
- Engine Rebuild Parts Oil System Parts Fuel System Parts Gaskets & Sets Radial Seal / RMS / Camshaft / Balance shaft Belts / Tensioners / Rollers Chains & Tensioners Engine Bearings / Shells Rocker Arms & Tappets Engine Bolts / Studs Engine Mounts Engine Cylinders / Liners / Pistons Connecting Rod Camshaft covers / Gaskets Camshaft gears / sprockets and fixings Crankcase Parts Crankshaft & Parts Air Intake & Injection Specialist Tools
-
Brakes
-
- Brakes Brake Pads & Disc Package Brake Disc Standard Brake Pads Standard SPORTS Brake Disc Brembo Standard brakes Brembo Racing brakes TEXTAR Brakes PAGID Racing Brakes Manthey Racing Brake Pads Zimmermann Brakes Performance Friction Brakes Giro Slotted Brake Disc SHW Performance Brakes Replacement for Ceramic Disc Brake Pad Wear Sensors Brake Pad Anti-vibration shims Caliper Bolts / Disc Screws Pin Kit and Guide Plates Performance Brake Hoses Standard Brake Hoses Caliper and Brake Lines Brake Calipers All Categories
-
-
Suspension & Steering
-
- Steering Parts Steering Gaiter Track Rods
-
-
Transmission
-
- Gearbox / Transmission Clutch Kits Clutch Kits - High Performance Clutch Friction Plate Clutch Release Bearings Gearbox Parts Driveshafts & Parts Gasket Sets / Gaskets / Seals / Lock Nuts Gearshift Control Parts Flywheel / Torque CV Joints Kits CV Boots and Kits Cardan Shaft / Prop Shaft Transmission Parts Gearbox / Differential Oil Gearbox Sump / Oil Pan Front Differential Rear Differential Transmission Cooling
-
-
Cooling & Heating
-
- Heating / Air Conditioning Air con condensers & desiccators Air con pipes Compressors Blower Motors & Fans Temperature Sensors / Switches
-
-
Electrical & Lighting
-
Body & Exhaust
-
- Chassis / Bodywork Restoration Chassis / Repair Panels Front Lid Damper Rear Lid Damper Bonnets / Locks & Latches Boots / Rear Lid / Locks and Latches Bumpers Front Bumpers Rear Door Handles | Locks | Keys Door Panels | Hinges | Striker Plates Mirrors & Parts Stone Chip Foils / Stickers Undertrays Chassis & Engine Front Wiper Arms & Blades Roof - Cabrio / Targa / Coupe / Speedster Roll Cages Plastic Covers Engine Covers Front screen Rear screen Front side glass Rear side glass Fastenings & Fixings
-
-
Lubricants & Fluids
-
- Service Parts Oil Filters Air Filters Pollen/Particle Filters Spark Plugs Front Wiper Arms & Blades Rear Wiper Arms & Blades Gearbox Service Parts Engine Oil & Lubricants - Mobil Engine Oil & Lubricants - Total Engine Oil & Lubricants - Castrol Engine Oil & Lubricants - Motul Engine Oil & Lubricants - Millers Oils NanoDrive Engine Oil & Lubricants - Millers Oils Fuel Additives Garage PPE
-
-
All Parts
-
- Parts Accessories Chassis / Bodywork Brakes Clothing & Gifts Electrical & Relays Engine Cooling Engine Electrical Engine Rebuild Parts Engine Tuning Exhausts Exterior Styling / Spoilers Gearbox / Transmission Heating / Air Conditioning Interior & Accessories Incar / Multimedia Lighting Mats & Carpets Motorsport and Off-Road Pedal Cluster Rubber Seals Seats & Seat Belts Service Parts All Categories
-
- Back to main website
Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
Exhaust Muffler / Silencer Rear box Sports DesignTek for Porsche 993 ❭ 3606009301
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97

DesignTek sport exhaust rear boxes are design to give a better throttle response, and also allowing the engine to breather. DesignTek exhaust sounds slightly deeper than the original Porsche standard exhaust. All DesignTek Exhaust Systems are manufactured from 14 - 16 gauge extra heavy duty T304 stainless steel, which eliminates the splitting, cracking and annoying resonance.
Fits:
Porsche 993 1994-97 (not Turbo & GT2)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606009301
The product you are viewing cross references to these numbers
- Porsche 992.1 Speedster 4.0L 2019-24
- Porsche 992.1 GT3 4.0L / 992 S/T 4.0L 2021-24
- Porsche 992.1 GT3 RS 4.0L 2022-24

The Fabspeed Valvetronic Nordschleife Cat-Back Exhaust System gives the 992 GT3 a truly exotic sports car sound, all while retaining the functionality of PSE (Porsche Sport Exhaust). Our design process started with 3D scanning the entire OEM exhaust system using our CREAFORM 700 Handscan so that we could make a complete Solidworks 3D model of the exhaust. We then designed the exhaust and fixtures using that model so that the exhaust fit perfectly to OEM standards. After multiple revisions for sound and dyno testing we decided to use our signature cast X-Pipe to tie the two cylinder banks together for exhaust scavenging and to defeat resonance. The exhaust valves are made by Helical Limited in the United Kingdom. These ISO 9001 certified valves are the same ones Ferrari, McLaren and Porsche use on their GT cars. The piping is mandrel bent from T304 Stainless steel, and you have five different tip options to choose from.
SOUND:
With PSE off our Valvetronic exhaust gives a nice subtle increase in volume. With PSE on it turns the 4.0L's exhaust note into a truly exotic sound with a significant increase in volume. The exhaust note changes from the smooth purr of the OEM exhaust to the aggressive race-bred snarl of a 911 CUP car. (If you need to cut down on how loud your exhaust is because of race track rules, we sell turn down tips which cut 3-6db of exhaust SPL.)
POWER:
This system improves on Porsche's design by increasing pipe diameter from 2.5 in to 2.75 in and using our signature cast X-pipe instead of the factory H-Pipe. On our DynoJet we saw +14 whp at 4200 RPM and a healthy dose of torque down low at 4200 RPM gaining 17 ft/lbs of tq. That's 16 HP gain at the crank.
FEATURES:
• Fits all Porsche 992 GT3 / GT3 RS 2022+ Models worldwide w/o monitored GPF (Solution for GPF monitored cars will be released shortly)
• Significant Dyno gains across the RPM band. +17 ft/lbs tq @ 4200RPM and +14 whp @ 4200RPM
• Weight savings of 5lbs / 2.3KGs vs the factory exhaust
• Completely retains PSE valved exhaust functionality
• Uses aerospace quality Helical Limited exhaust valves imported from the U.K.
• Incorporates our signature cast X-pipe for superior flow and exhaust scavenging
• This cat-back system is emissions legal in all 50 states and the rest of the world (ROW)
• Constructed from high-quality 14-16ga CNC mandrel-bent T304L stainless steel for optimum flow and maximum durability
• Laser scanned and CAD designed for perfect OEM fitment using an Ametek Handyscan 700
• No Check Engine Light guaranteed
• Simple DIY bolt-on installation, no cutting or welding required
• All Fabspeed performance products are backed by the Fabspeed Lifetime 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.
FSPOR992GT3VLV
The product you are viewing cross references to these numbers
- Porsche 992.1 GT3 4.0L / 992 S/T 4.0L 2021-24
- Porsche 992.1 GT3 RS 4.0L 2022-24

This cat-back exhaust system for the 992 GT3 gives the 4.0L a more pronounced tone, and reduces weight from the rear of the car.
SOUND:
We thought the 992 GT3 was a bit quiet from the factory, even with PSE turned on. This system gives the high revving 4.0L the exhaust note it should have had from the factory, without introducing any interior drone.
FEATURES:
• Fits all Porsche 992 GT3 / GT3 RS 2022+ Models worldwide
• Saves 17bs / 7.7kg compared to the stock/OEM muffler
• Your choice of matte carbon fiber tips, polished stainless steel or brushed stainless steel tips
• Balance tube equalizes exhaust pulses which reduces drone and helps exhaust scavenging
• Constructed from mandrel bent T304L stainless steel
• Comes with Fabspeed electronic valve simulators that prevent a CEL
• Simple DIY (Do-It-Yourself) bolt-on installation, no cutting or welding required
• This cat-back system is emissions legal in all 50 states and the rest of the world (ROW)
• No Check Engine Light guaranteed
• Designed, developed, street and race track tested by Fabspeed Motorsport 25+ years of aircooled and water-cooled experience
• All Fabspeed performance products are backed by the Fabspeed Lifetime 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.
FSPOR992GT3SSX
The product you are viewing cross references to these numbers
- Porsche 992.1 GT3 4.0L / 992 S/T 4.0L 2021-24
- Porsche 992.1 GT3 RS 4.0L 2022-24

This is a complete headers to tips exhaust solution for the 992 GT3. Designed to be the most powerful emissions compliant exhaust system possible. We used all 25+ years of Porsche exhaust design experience and our finest manufacturing techniques to engineer this incredible modular system. We started with the headers. From our experience designing our 991/991.2 Long Tube Headers, we knew that "long tube" headers were essential for making BIG power on the GT3 platform. After dozens of dyno runs and many revisions to runner length, diameter, and collector design we moved on to the catalytic converters and rear section. With perfectly optimized headers and cats, there was no room to fit the factory muffler section, so that went out the window. In its place we implemented extra large 200 cell HJS cats and our signature cast X-pipe. These cats flow so much better than stock, that we only gained 1-2 peak WHP when we tested the system with no cats. You can see the dyno graph for yourself above. Finally, after much testing we found that our cast X-pipe provided some significant gains from 3-6K RPM when compared to a simple crossover tube. With the RENNKRAFT™ system, you can easily swap between catted and cat bypass using the quick release v-band clamps (patent pending). So if you're going to the track you can swap in cat-bypass pipes.
SOUND:
This system isn't for the faint of heart, it'll turn your GT3 into a snarling race-bred monster. This system is LOUD, it pops and gurgles, and it will absolutely scream at redline. This is at the cost of some interior drone and day-to-day livability.
POWER:
This is the way; the most powerful emissions compliant 992 GT3 exhaust system on the market. Max gains of 31 WHP and 39 ft/lbs of TQ are seen at 4250 RPM. That's 35 HP at the crank! Gains of over 20 WHP are carried all the way from 6000 RPM up to redline. You're going to feel the power that this system adds to your GT3!
FEATURES:
• Fits all Porsche 992 GT3 / GT3 RS Vehicles (2022+) (This system does delete the GPF, and will cause a check engine light for a monitored GPF system unless a simulator or tune is used)
• Adds 31 WHP and 39 ft/lbs of TQ at 4250 RPM (35 HP at the crank)
vSaves a massive 18lbs / 8.2 KGs versus the stock factory Porsche OEM system
• Equal length headers with Burns Stainless Formula 1/ Indy car style high velocity merge collectors
• Springs used for collector retention to accommodate for expansion and increase durability
• Constructed from T321 stainless steel Mil Spec tubing- ASME specifications
• CNC mandrel bent tubing featuring 2.75in / 70mm tubing
• Investment cast stainless steel flanges for maximum flow and strength
• Modular design that uses a V-band clamp so one can quickly swap between cats and cat bypass
• Switching to cat-bypass for track events prevents catalytic converter degradation during all out competition racing abuse
• We use German-made HJS HD tri-metallic 200-cell EURO 6 homologated catalytic converters for the best performance and reliability
• Optimized for maximum performance with NO catalyst generated check engine light, guaranteed, when Sport Cats are installed
• Comes with your choice of exhaust tips: Matte carbon fiber, mirror polished stainless steel, brushed stainless steel, Satin Black and 90 degree race turn down tips for sound control
• Simple bolt-on installation, no cutting or welding required
• Race / Track oriented products not covered under the Sound Solutions Warranty
• All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty
Why We Choose HJS Catalytic Converters:
HJS German imported catalytic converters are made from some of the highest grade materials you can find in a catalytic converter. This yields high performance gains and longevity so it wont deteriorate over time like lower grade catalytic converters. These catalytic converters flow up to 93-95% of a straight pipe in most applications. The benefit is that you get the "straight pipe sound" while still being able to provide enough emissions scrubbing to prevent a check engine light. If you'd like to learn more, watch our video about HJS catalytic converters.
Sport Catalytic Converter (STREET) - This product removes the OEM catalytic converters from the vehicle, and as such, is strictly intended for closed track events and off-road use only. This product contains a High-Flow Sport Catalytic Converter solely intended for track and race cars as it is NOT California Air Resources Board Certified and not EPA certified. You are hereby informed and warned to check your local, state, and federals laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts.
Cat Bypass (RACE) - This product removes the OEM catalytic converters from the vehicle, and as such, is strictly intended for closed track events and off-road use only. This product is or contains a Racing Cat Bypass Pipe, which will give you check engine lights on OBD2 cars. Racing Cat Bypass Pipes are solely intended for track and race cars as they are NOT California Air Resources Board Certified and not EPA certified. You are hereby informed and warned to check your local, state, and federals laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts.
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.
FSPOR992GT3GTLMSC
The product you are viewing cross references to these numbers
Monday-Friday: 8.30am - 5.30pm (GMT)
Saturday: Closed
Sunday: Closed