do not press the back button…
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.
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MKII GT3 / GT3 RS 2010-11
The ULTIMATE OEM style high performance replacement muffler for your GT3
FEATURES:
• Fits all Porsche 997.1 GT3 and 997.2 GT3 / GT3 RS vehicles 2007-2008 and 2010 to 2011 worldwide
• Constructed from CNC cut T304L stainless steel
• Designed from 3D scans of the OEM muffler so we can achieve perfect bolt-on fitment
• Will not break or crack like OEM GT3 mufflers do
• Incorporates our signature cast X-pipe for superior flow and exhaust scavenging- versus any and all other brands
• Paired with our Side Muffler Bypass Pipes this muffler adds +27 ft/lbs of TQ and +16 WHP or +18 HP at the crank!
• 3 different tip options available- Carbon Fiber, TITANIUM, Stainless steel polished, brushed or black coated.
• Completely retains PSE valved exhaust functionality
• No Check Engine Light guaranteed
• This cat-back system is emissions legal in all 50 states, CARB approved exempt and emissions legal in the rest of the world
• Built in house at Fabspeed Motorsport USA in Fort Washington, PA
• Simple bolt-on installation, no cutting or welding required
• All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty
As many GT3 owners know, the OEM mufflers are prone to cracking, breaking and blowing out, particularly the titanium mufflers on GT3RS cars. Fabspeed Motorsport Engineers design a GT3 primary muffler replacement that not only fixed that issue but also greatly improved on the OEM design in multiple measurable ways. Using our 30+ years of air and water-cooled experience, we took the valve open tubing to 2.75in / 70mm which is the optimal diameter for GT3 engines to have low restriction but maintain high velocity and high RPM GT3 pitch for the signature GT3 CUP car sound. Then, we implemented our signature investment cast 70mm 2.75" X-Pipe for optimal exhaust scavenging and maximum volumetric efficiency. The X merges the two cylinder banks without creating any restriction in exhaust flow. To maintain the factory muffler’s exhaust note and lack of drone, we mimicked Porsche’s 7 chamber design. This makes for a completely drone free muffler, even when running cat-less race headers! Using GT3 headers with cats or Fabspeed headers with HJS German EPA approved catalytic converters along with Fabspeed GT3 Side Muffler Muffler Bypass Pipes for the ultimate emissions compliant lightweight GT3 exhaust. Fabspeed's GT3 center muffler is guaranteed to NEVER BREAK or fail- and OUTPERFORM any other aftermarket GT3 center muffler. 100% made in house at Fabspeed.
SOUND:
This muffler will have a very similar tone to the OEM muffler, however, it will be a bit louder with PSE turned on. It will also sound a bit smoother and higher pitched thanks to our signature X-pipe.
POWER:
On our 997.1/ 997.2 GT3 and GT3RS test car, paired with our Side Muffler Muffler Bypass Pipes, the Rennsport Muffler picked up an impressive 27 ft/lbs of TQ down low at 3,200 RPM. From 2,900 RPM all the way to 5,700 RPM it picks up =12 horsepower or more, and peak power at the wheels is up from 446 to 454! That’s a gain of over 12 HP at the crank- from simply swapping out the fragile restrictive OEM Porsche 997GT3 to the very latest GT3 RS Titanium OEM factory mufflers. BEST ADVICE- but and install a Fabspeed GT3 center muffler and SAVE you fragile OEM GT3 muffler for Concours shows and restoration. All GT3 OEM mufflers BREAK & EXPLODE when driven long and hard enough.
NOTE:
• Requires OEM gaskets and hardware to be reused
• If they are not available here are the necessary part numbers.
• 2x Muffler band straps (99711111970)
• 2x Bolt for muffler band strap (90006736201)
• 2x Each Side Muffler to Center Muffler Gaskets (99711156390, 99711156190)
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.
FSPOR9972GT3RSM
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