My Account Cart

- SHOP BY VEHICLE
- SHOP BY CATEGORY
- SHOP BY BRAND
EXTERIOR
- Bumpers
- Canards
- Covers
- Diffusers
- Exterior Trim
- Fenders
- Grilles
- Hoods
- Full Kits
- Lips
- Spoilers / Wings
SUSPENSION
BRAKES
WINGS
PERFORMANCE
EXHAUST
WHEELS
INTERIOR
MISCELLANEOUS

Fabspeed Side Muffler Bypass Pipes for 991.1 Porsche 911 GT3 & GT3 RS

Fabspeed Side Muffler Bypass Pipes for 991.1 Porsche 911 GT3 & GT3 RS

Fabspeed Side Muffler Bypass Pipes for 991.1 Porsche 911 GT3 & GT3 RS

Price range: $1,508.95 through $2,295.95

-

The Fabspeed Side Muffler Bypass Pipes for the 991.1 Porsche 911 GT3 & GT3 RS reduce weight by 34lbs and deliver an aggressive CUP car sound for the street. Constructed from high-quality 14-16 gauge T304 stainless steel, these pipes feature Helical valves for optimal performance. The simple bolt-on installation makes upgrading your vehicle effortless.

Guaranteed Safe Checkout

SKU: N/A

Looking for the best price?

Give us a call — happy to help with your order.

Phone: +1 213-745-6954

Email: sales@bulletproofautomotive.com

Categories: Exhaust, Mufflers Vehicle: PORSCHE, Porsche 911 GT3, Porsche 911 GT3 RS, Brand: Fabspeed

INQUIRE NOW

REQUEST SUPPORT

DESCRIPTION & INFO

Description

Additional Info

Shipping policy

BP PRICING DIFFERENCE

Reviews

Product Inquiry

Description

Fabspeed Side Muffler Bypass Pipes for 991.1 Porsche 911 GT3 & GT3 RS

The Fabspeed Side Muffler Bypass Pipes for the 991.1 Porsche 911 GT3 & GT3 RS are engineered to enhance both performance and sound. Featuring the highest quality Helical valves, these pipes save 34lbs from the rear of the vehicle while replicating the aggressive CUP car sound for a thrilling street experience. Constructed from durable 14-16 gauge T304 stainless steel, they ensure optimal flow and longevity. With a simple bolt-on installation process, upgrading your GT3 or GT3 RS has never been easier, delivering improved performance and an unmistakable exhaust note.

Helical Valves

Fabspeed chose to use Helical Valves in their 991 GT3 / GT3 RS track exhaust systems for their exceptional quality, which has been proven by numerous OEM manufacturers such as McLaren, Ferrari, Lamborghini, and others. These valves are a key component of Fabspeed’s Side Muffler Bypass pipes, opening and closing with precision to control gas flow and optimize engine back-pressure for enhanced performance. Helical’s extensive experience in high-volume OEM automotive applications has led to features such as a highly durable pneumatic actuator, precision flat sealing faces inside the valve, stiffening ribs, and high-temperature bearings at both ends of the butterfly spindle.

02 Bungs

Fabspeed relocated the O2 bungs from the collector of the headers to the Side Muffler Bypass Pipes to maintain factory-like functionality with their Long Tube Competition Headers, ensuring that all cylinders are read while optimizing the performance of the collector. This design replaces the existing SMBPs, allowing for a seamless upgrade to the Long Tube Race Header design at any time in the future.

Features

Highest quality Helical valves
Saves 34lbs from the rear of the vehicle
Replicates aggressive CUP car sound for the street
14-16ga T304 stainless steel construction
Simple bolt-on installation
Includes O2 bungs for factory like functionality
All Fabspeed performance products are backed by the Fabspeed lifetime warranty

Applications

Porsche 911 GT3: 991.1 (2014-2016) [4.0L F6]
Porsche 911 GT3 RS: 991.1 (2015-2016) [4.0L F6]

Notes

All Fabspeed products are expected to ship within one week of order, though timelines are often much quicker
To retain PSE functionality please select the valved option upon checkout
Installation instructions for Porsche homelink connection

About Fabspeed

Fabspeed Motorsport is situated in Fort Washington, Pennsylvania, within the United States of America. Their extensive 26,000 sqft. facility serves as a hub for various car clubs, including Porsche Club of America, Ferrari, McLaren, Lamborghini, and more. The company is renowned for its comprehensive approach to product development. They handle the entire process, from design and engineering to dyno testing, street trials, and racing assessments, ensuring the quality and performance of every item. Fabspeed also collaborates closely with race engine builders and tuners hailing from Italy, Germany, and the United States, resulting in the creation of the Ultimate Performance parts. To cater to their passionate global audience, Fabspeed meticulously crafts systems using aerospace-grade austenitic stainless steel, titanium, and carbon fiber materials, setting a standard for excellence in the industry.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

Reviews

Reviews

There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

Product Inquiry

First Name (*required)

Last Name (*required)

Your E-Mail (*required)

Telephone Number (*required)

Country (*required)

Vehicle Year / Make / Model (*required)

Please Explain What do you want to do with your vehicle

Additional Information (optional)

I agree to the terms & conditions and privacy policy and to have Bulletproof Automotive LLC contact me for promotion, marketing and other purposes via email, phone or SMS message.

RELATED PRODUCTS

Elevated Driving Experience For Enthusiasts

SUBSCRIBE FOR OUR NEWSLETTER

Elevated Driving Experience For Enthusiasts

Stay up to date with the latest product releases, Bulletproof Automotive builds and more. Sign up for our newsletter to receive the most up to date information in the aftermarket tuning world, and bring your build to a whole new level.

BULLETPROOF BRANDS

VIEW ALL BRANDS WE STOCK