Will the Fabspeed Primary Maxflo Exhaust System fit my 964 Carrera, Carrera 4, RS America, or Speedster?

Yes. It's a direct bolt-on fit across the 1988-1994 964 Carrera range, available in single or dual outlet configuration to match your car.

What's the difference between the single and dual outlet configurations?

Both use the same muffler; the difference is how the exhaust exits the car. Dual outlets require a small modification to the factory rear bumper to open a second hole, while single outlet uses a block-off cap on the left side and needs no bumper modification.

Can I switch from single to dual outlet later?

Yes. Purchase the second outlet tip, then cut a second hole through the rear bumper cover to install it. The reverse isn't offered as a kit; a single-outlet block-off cap is included with every order.

How difficult is the Fabspeed Primary Maxflo Exhaust System to install?

It's a simple, Level-1 DIY bolt-on installation. No cutting or welding is required for the exhaust itself; only the dual-outlet configuration needs the bumper modification described above.

How does this compare to Fabspeed's Primary Muffler Bypass?

The Maxflo keeps a street-appropriate volume for daily driving with a deep, throaty tone; the Primary Muffler Bypass is the louder, more track-focused straight-pipe option. Owners who drive their 964 daily choose the Maxflo; owners chasing maximum sound and weight savings for track or autocross choose the bypass.

Is the Fabspeed Primary Maxflo Exhaust System backed by a warranty?

Yes. It's backed by the Fabspeed lifetime warranty covering materials and workmanship.

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BP PRICING DIFFERENCE

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Description

Fabspeed Primary Maxflo Exhaust System for 964 Porsche 911 Carrera / 4 / RS America / Speedster

Fabspeed’s Primary Maxflo Exhaust System for 964 Porsche 911 Carrera replaces the factory muffler with a deep, throaty flat-six tone that stays at a volume you can live with every day. Built with the same air-cooled character in mind as Fabspeed’s louder Primary Muffler Bypass, the Maxflo trades some of that bypass’s aggression for daily drivability, sharpening throttle response through the RPM range without turning the cabin into a drone chamber. It’s available in a single or dual outlet configuration, so you can match the look and sound to how the car will actually be driven.

Features

Increases throttle response throughout the RPM range with a less restrictive muffler design
Available in single or dual outlet configuration, selected at time of order
Constructed from 14-16 gauge CNC mandrel-bent T304L stainless steel
Includes 4″ / 102mm oval-style tips for a clean fit against the factory bumper
Simple DIY bolt-on installation, no cutting or welding required
Backed by the Fabspeed lifetime warranty

Applications

Porsche 911 Carrera: 964 | 1989-1994 | 3.6L F6
Porsche 911 Carrera 4: 964 | 1988-1994 | 3.6L F6
Porsche 911 Carrera RS America: 964 | 1993-1994 | 3.6L F6
Porsche 911 Carrera Speedster: 964 | 1989-1994 | 3.6L F6

Notes

All Fabspeed products are expected to ship within one week of order, though timelines are often much quicker
Choosing dual outlets requires slight modification to the factory rear bumper for proper fitment of the second outlet
A block-off cap is included to cap off the left-side outlet when running a single outlet
To upgrade to dual outlets later, purchase the second outlet tip, then cut a second hole through the rear bumper cover to install it

Frequently Asked Questions

Will the Fabspeed Primary Maxflo Exhaust System fit my 964 Carrera, Carrera 4, RS America, or Speedster? Yes. It’s a direct bolt-on fit across the 1988-1994 964 Carrera range, available in single or dual outlet configuration to match your car.
What’s the difference between the single and dual outlet configurations? Both use the same muffler; the difference is how the exhaust exits the car. Dual outlets require a small modification to the factory rear bumper to open a second hole, while single outlet uses a block-off cap on the left side and needs no bumper modification.
Can I switch from single to dual outlet later? Yes. Purchase the second outlet tip, then cut a second hole through the rear bumper cover to install it. The reverse isn’t offered as a kit; a single-outlet block-off cap is included with every order.
How difficult is the Fabspeed Primary Maxflo Exhaust System to install? It’s a simple, Level-1 DIY bolt-on installation. No cutting or welding is required for the exhaust itself; only the dual-outlet configuration needs the bumper modification described above.
How does this compare to Fabspeed’s Primary Muffler Bypass? The Maxflo keeps a street-appropriate volume for daily driving with a deep, throaty tone; the Primary Muffler Bypass is the louder, more track-focused straight-pipe option. Owners who drive their 964 daily choose the Maxflo; owners chasing maximum sound and weight savings for track or autocross choose the bypass.
Is the Fabspeed Primary Maxflo Exhaust System backed by a warranty? Yes. It’s backed by the Fabspeed lifetime warranty covering materials and workmanship.

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.

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Fabspeed Primary Maxflo Exhaust System for 964 Porsche 911 Carrera [FS.POR.964.MAXX]

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Fabspeed Primary Maxflo Exhaust System for 964 Porsche 911 Carrera / 4 / RS America / Speedster

Features

Applications

Notes

Frequently Asked Questions

About Fabspeed

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