SKU: 27972098485

Fabspeed 997 GT3 / GT3 RS Rennsport Muffler (06-09) (FS.POR.997GT3.RSMP)

Sale price$2176.62 Regular price$2418.47
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Ships within 48 hours · Estimated delivery Jul 22 - Jul 27

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Description

Fabspeed 997 GT3 / GT3 RS Rennsport Muffler (06-09) (FS.POR.997GT3.RSMP)The ULTIMATE OEM style high performance replacement muffler for your GT3! As many GT3 owners know, the OEM mufflers are prone to cracking, breaking and blowing out, particularly the titanium mufflers on GT3RS cars. We wanted to design a muffler replacement that not only fixed that issue but also improved on the OEM design. Using our 25+ years of air and water cooled experience, we took the valve open tubing to 2. 75in 70mm which is the optimal

The ULTIMATE OEM style high performance replacement muffler for your GT3! 

As many GT3 owners know, the OEM mufflers are prone to cracking, breaking and blowing out, particularly the titanium mufflers on GT3RS cars. We wanted to design a muffler replacement that not only fixed that issue but also improved on the OEM design. Using our 25+ 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 GT3 pitch for the signature GT3 CUP car sound. Then, we implemented our signature investment cast X-Pipe for optimal exhaust scavenging. 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 catless race headers! Pair this with our Side Muffler Muffler Bypass Pipes for the ultimate emissions compliant GT3 exhaust. This muffler is guaranteed to NEVER BREAK or fail.

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 991.1 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 10 WHP or more, and peak WHP is up from 446 to 454! That’s a gain of 8 WHP or 9 HP at the crank.

FEATURES:

  • Fits all Porsche 997 GT3 / GT3 RS vehicles 2006-2009 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
  • 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
  • Completely retains PSE valved exhaust functionality
  • No Check Engine Light guaranteed
  • This cat-back system is emissions legal in all 50 states and 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
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 27972098485

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Miranda Lawson
Los Angeles, US
★★★★★ 4
Bad packaging
Size: 5 Ounce (Pack of 2)
The spray nozzle on these suck.
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Reviewed in the United States on May 31, 2026
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Lacy Henry
Fort Morgan, US
★★★★★ 3
Spray stops working
Size: 5 Ounce (Pack of 2)
I’ve been buying this product for awhile and keep experiencing issues. It protects your skin well but is sometimes hard to spray and half the time the nozzle stops working while there is still product in the bottle.
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Reviewed in the United States on November 27, 2024
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Alison
Dallas, US
★★★★★ 5
Perfect
Size: 5 Ounce (Pack of 2)
Goes on easy, protects well from the sun.
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Reviewed in the United States on September 10, 2024
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Lake Worth, US
★★★★★ 5
CLEANS HANDS ON THE GO WITH NO SMELL OR RESIDUE LEFT BEHIND!
Scent: Fragrance Free, Size: 16 Fl Oz (Pack of 2)
I keep a pump bottle of this Babyganics foam sanitizer in my car (along with paper towels). It cleans up my hands well when running errands, leaves behind no residue, perfume or chemical odors.
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Reviewed in the United States on July 26, 2025
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N Dang
Lowell, US
★★★★★ 5
Great sanitizer
Scent: Fragrance Free, Size: 16 Fl Oz (Pack of 2)
I've been using this product for years. The scent (mandarin) is light and easy on the nose. There's also the unscented one that has no smell at all. Both products gets the job done! The sanitizer is not like the typical alcohol sanitizers. This one is more easy on your hands and it doesn't dry it out. Not to mention it's also foam! It's easy for both adults and kids to use.
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Reviewed in the United States on March 29, 2022

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