BBi Autosport StreetCup 991 GT3 Sees Track Action at Circuit of Americas

[BBiAutosport]

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BBi Autosport StreetCup 991 GT3
Sees Track Action at Circuit of Americas


(Click on images for higher resolution)


In collaboration with our partners HG Motorsports in San Diego, we would like to present this beautiful Satin White 991 GT3 that we recently built earlier this year. To make her better suited for track duties, we installed our complete BBi Street Cup Suspension, Exhaust, and Roll Bar Package for improved chassis response, enhanced exhaust note, and weight reduction. Here are some detailed pictures of the build process and upgraded parts that we would like to share below.

Vehicle Specifications

• Satin White Porsche 991 GT3

Engine

• BBi 991 GT3 Street Cup Exhaust Bypass

Suspension

• BBi Porsche 991 GT3 Street Cup Monoball Control Arm Package
• BBi Porsche 991 GT3 Street Cup Spring Upgrade Package
• Tarrett Front and Rear Adjustable Sway Bar End Links
• BBi StreetCup Competition Corner Balance & Alignment

[BBiAutosport]

BBi 991 GT3 StreetCup Exhaust Bypass

The first modification we did was upgrading the exhaust system to enhance the exhaust note and reduce weight behind the rear axle. Most other aftermarket exhaust systems on the market replaces the secondary center muffler and the performance gains and weight savings are minimal. The factory secondary exhaust weights approximately 20 pounds and the average secondary muffler bypass weighs approximately 7 pounds, which equates to only 13 pounds of weight savings.



Our Porsche 991 GT3 / GT3 RS Exhaust Bypass took a more unorthodox approach and bypassed the much heavier primary side mufflers. The primary mufflers are weigh approximately 44 pounds total while our bypass pipes are 4 pounds in comparison. For durability and protection against corrosion, each system is meticulously TIG welded using 304 aerospace grade stainless tubing with lower carbon content. The result is a substantial reduction in weight behind the rear axle which significantly improves handling and less restriction to produce a much more aggressive exhaust note.


Key Features

• Delivers deep aggressive exhaust sound
• Significant weight reduction of 40 pounds
• 304 stainless steel aerospace tubing
• Meticulously TIG welded
• Brushed stainless finish
• Stainless hardware and clamps
• 100% emissions legal
• Will not void warranty
• Factory secondary mufflers and catalytic converters are all retained
• 50 state emission compliant
• Direct bolt on replacement
• Compatible with 991 GT3 and 991 GT3RS models
• Made in USA

Bumper Removed


Heat Shield Removed


OEM Side Mufflers Removed


OEM Side Mufflers vs BBi 991 GT3 StreetCup Exhaust bypass


40lb Weight Savings. 44lb vs 4lb


BBi 991 GT3 StreetCup Exhaust Bypass Installed







Bumper Reinstalled

[Raven 911]

Awesome Images ,,,and I Am a big fan of the side muffler delete ,,,,One of the best mods for any GT3 IMO saves weight,,reduces heat ,,good value for money and just sounds Mean ....................