}
}
}
}
}
The seventh incarnation of the 911, the 991 turbo has taken some strikingly beautiful evolutionary steps. A...
- Regular price
- $2,996.00
- Regular price
-
- Sale price
- $2,996.00
- Unit price
- per
Check your purchasing power
Apply at checkout
Found a better price elsewhere?
Request Price Match
10 customers are viewing this product
30 day returns
Learn More.
Free Shipping
Free standard shipping on orders over $99
Coupon Code on First Order
Price Match Guarantee
Free shipping on $99+ order
30-days Returns
The seventh incarnation of the 911, the 991 turbo has taken some strikingly beautiful evolutionary steps. A wider wheel base, and improved axel to engine geometry significantly improve the weight distribution and cornering stability. additional composites and aluminium to further reduce weight, even the exhaust has been somewhat improved over the 997. So how much could we really improve over the factory exhaust? Quite simply remarkably!
The Sound:
Capitalising on the design innovations and success of our 996 and 997 range, the starting point for designing the 991turbo exhaust had been set high. Our trademark perfect x pipe geometry, harmonically tuned silencer geomtery, Inconel 625, and our proprietry acoustic silencer packing materials result in a system that has become famous for that perfect sound. Zero drone, and a raised pitch raucious incindiary howl in higher rpms and hard throttle. The design is so perfect, that you can even run catless versions silently at cruising speeds, only unleashing that howl when you drive the car hard.
During development there were some clear evolutionary design steps that we could incorporate. The secondary tail pipe allowed us to integrate an effective gas overflow system. The concept was conceived at the fluid dynamic modelling stage, and effectively works to cut low rpm noise, while allowing an effective increased cross section at higher rpms producing a more accentuated Jekyll and hyde personality, and slightly broader torque curves.
Performance:
Available with decat pipes for optimum performance and sound, or with 100 or 200 cell HJS HDPE catalysts. The largest gain with decats is 38hp and 55nm. 100 cell and 200 cell catalysts produce 20hp, and 16hp respectively.
Specifications:
Cross Sections:
De-cat cross section 70mm OD specifically chosen for a balance of peak torque and power.
Silencer section, cross section 65mm OD and 44mm OD overflow
Catalysts come in a variety, from 108mm OD to 127mm OD
Materials:
Turbo back system
Available in standard 304 grade stainless steel, weight 14kg 200cell cats, 12.5 with de-cat
Inconel 625 formula one grade material, weight 7.5kg
Titanium G2 silencer section is also available, weight comparable to Inconel
Manifolds:
Standard 304 grade stainless, weight 6kg total
Inconel 625, weight, 2.9kg total
Titanium unable to endure extreme heat
Manifolds:
Will be available soon in Inconel 625, or 304 stainless expect the world first equal length design
Tails:
Will be available soon in Aerospace grade carbon fiber
Features:
- Improved exhaust flow for increased power
- Enhanced horsepower and torque gains
- Sporty and aggressive exhaust note
- Durable stainless steel construction
- Designed for precise fitment on Porsche 991 Turbo S (Gen1/Gen2)
- Easy installation with included hardware
- Compliant with emissions regulations
- Compatible with factory or aftermarket exhaust systems
- Potential for improved fuel efficiency
Vehicle Fitment Chart:
| MAKE | MODEL |
| Porsche | 991 Turbo S |
If you have any fitment questions, please feel free to reach out to our team via the contact methods below. If you are contacting us for any order status updates, please give us a call, or email us. We are a lean operation bringing you the best shopping experience possible. We are working on your orders as quickly as we can. We thank you for your patience.
- Call:
- Please reach out to us at (310) 231-0292 for sales inquiries if you are in the United States, Canada, Mexico.
- Email:
- For more in-depth product questions, fitment questions, product inquiries please email our performance specialists at online@autotalent.com.
- All other inquiries:
- Please direct your inquiries to the chat functionality on our website.
Returns Policy
If a product is ordered and not wanted, the UNUSED item can be returned for a 25% restocking fee unless otherwise specified. In some cases, we may offer the ability to return the item to us for a lesser restocking fee and then keep the balance as a store credit. To return an item, it must be in brand new condition with original packaging.
We cannot accept a return on special ordered or custom items.
Shipping is non refundable in either direction unless approved by AutoTalent. All items wanting to be return MUST be reported within 30 days of the original invoice date. No items will be returnable after 30 days. All products shipped from the AutoTalent facility are shipped via FedEx, USPS, or USPS. Some packages shipped from the manufacturer may or may not require signatures for package release.
Special Order Items
Some items may be special order specifically for the customer’s vehicle. These items generally require a deposit or paid in full. Once this deposit amount is notified to the customer and they agree to order the special order item, the deposit becomes non-refundable. These special order items cannot be returned or resold. Cancellations are not allowed on special order parts.
AutoTalent DOES NOT REFUND SHIPPING CHARGES. If you modify, install, or alter the item in any form, we cannot accept it as a return. We will not cover any expenses related to the product or installation, and you may be required to purchase a replacement.
** All cancellations that are requested that are NOT due to items not being in stock or delayed by the manufacturer are subject to a 5% processing fee. When you place an order with us we pay credit card fees that are NOT returned back to us. We will absorb these fees if we do not have the item in stock OR if you agree to the original ETA and that ETA is NOT met. If you decide to cancel for any other reason you will not receive this 5% fee back
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based.
Others People Also Bought
Autotalent
Vendor:
Vendor
- Regular price
- From $2,611.00
- Regular price
-
- Sale price
- From $2,611.00
- Unit price
- per
Autotalent
Vendor:
Vendor
- Regular price
- From $2,611.00
- Regular price
-
- Sale price
- From $2,611.00
- Unit price
- per
Autotalent
Vendor:
Vendor
- Regular price
- From $2,611.00
- Regular price
-
- Sale price
- From $2,611.00
- Unit price
- per
Autotalent
Vendor:
Vendor
- Regular price
- From $2,611.00
- Regular price
-
- Sale price
- From $2,611.00
- Unit price
- per
Autotalent
Vendor:
Vendor
- Regular price
- From $2,611.00
- Regular price
-
- Sale price
- From $2,611.00
- Unit price
- per
Autotalent
Vendor:
Vendor
- Regular price
- From $2,611.00
- Regular price
-
- Sale price
- From $2,611.00
- Unit price
- per
Autotalent
Vendor:
Vendor
- Regular price
- From $2,611.00
- Regular price
-
- Sale price
- From $2,611.00
- Unit price
- per
Autotalent
Vendor:
Vendor
- Regular price
- From $2,611.00
- Regular price
-
- Sale price
- From $2,611.00
- Unit price
- per
Autotalent
Vendor:
Vendor
- Regular price
- From $2,611.00
- Regular price
-
- Sale price
- From $2,611.00
- Unit price
- per
Autotalent
Vendor:
Vendor
- Regular price
- From $2,611.00
- Regular price
-
- Sale price
- From $2,611.00
- Unit price
- per
- Choosing a selection results in a full page refresh.