SKU: 84845389550

IE 3.5" Catted Downpipe - Audi | RS3 | TT-RS | 2.5T

Sale price$836.55 Regular price$929.50
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Description

IE 3.5" Catted Downpipe - Audi | RS3 | TT-RS | 2.5TY Pipe is sold Separately READY TO UNLOCK STAGE 2 ON YOUR 2. 5T? Your Audi RS3 or TTRS is a sporty fun drive straight from the factory, however, there is a lot of power hiding just inches from your right foot. You may already have a Stage 1 Tune, but you're ready to feel the complete performance potential from your powerful 2. 5T engine. Adding the IE downpipe is the key to unlocking Stage 2 horsepower and fully releasing that RS beast! FEATURES:

Y-Pipe is sold Separately

READY TO UNLOCK STAGE 2 ON YOUR 2.5T?

Your Audi RS3 or TTRS is a sporty fun drive straight from the factory, however, there is a lot of power hiding just inches from your right foot. You may already have a Stage 1 Tune, but you're ready to feel the complete performance potential from your powerful 2.5T engine. Adding the IE downpipe is the key to unlocking Stage 2 horsepower and fully releasing that RS beast!

FEATURES:

  • Massive horsepower & torque gains
  • 3.5" inch tubing replaces the restrictive factory size
  • Bolt on fitment - no hassle or poorly fitting parts when you choose IE
  • Cast downpipe sections - exact fit & ultimate flow
  • Constructed of 304 stainless piping - long-lasting and high-quality material
  • Thick turbo flange - prevents leaks and warping
  • High flow 200 cell catalytic converter - full power with reduced pollution and smell
  • High-quality flex section - allows for more adjustment and won’t fail
  • All inclusive kit - downpipe, mid pipes, all hardware
  • TIG welded construction - equates to long-lasting welds that are less likely to fail

STOCK DOWNPIPES ROB HORSEPOWER

Your 2.5T engine is capable of supercar level horsepower on the stock engine and turbo reliably with a Stage 2 Tune alone! However, the factory installed downpipe is designed for maximum emissions and economy, not for power. This design is riddled with small piping, harsh bends, and power sucking restrictions that limit your power gains to only Stage 1 Tune levels. In order to correct that, a true performance downpipe is required to open up the exhaust flow and allow the turbo to spin freely!

MAXIMUM FLOW DOWNPIPE

IE engineers set out to design the ultimate downpipe option for the 8V RS3 and 8S TTRS chassis by employing leading-edge development technology along with highly specialized cast manufacturing. By using cast sections this allowed our engineers to design specialized shapes into the downpipe itself that lets it conform and fit into very tight spaces while retaining it's large size and maximized flow rates. The design is so specialized that 3D scanning was used to build a digital model of the chassis to design in allowing us to build shapes down to the millimeter. This design is just not possible using traditional stainless steel pipes and bends found in most exhaust manufacturing.

POWER GAINS

Bolting this downpipe onto your Audi along with other matching bolt-ons and an IE Stage 2 Tune results in up to 577 horsepower! You can take your RS3 or TTRS from a sporty driver to a power monster in a single weekend. Downpipe requires Stage 2 Tune for complete installation.

LET THAT 5 CYLINDER SING!

Your RS 2.5 TFSI engine has an amazing 5 cylinder sound that all enthusiasts love. Unfortunately, much of that sound is muffled by the factory downpipe system. The cast design of your IE downpipe creates an aggressive and deep tuned sound that showcases the unique rumble from the 5 cylinder turbo engine. It remains perfectly daily drivable and modest on your daily commute, but when you put the pedal down it transforms into an all-out howling beast!

REMOVABLE HIGH FLOW CATALYTIC CONVERTER

By employing a high flow metal matrix catalytic converter, horsepower loss is almost non-existent while keeping unpleasant smells and increased emissions to a minimum. However, the CAT section can be completely removed and replaced with a straight exhaust pipe for track days or drag events if you wish.

LONG-LIFE MANUFACTURING

This downpipe holds the seal of IE quality and has been manufactured to last as long as you own the vehicle and beyond. Constructed from 304 stainless steel and expertly tig welded for incredible reliability. The cast and CNC machined turbo flange is thick to prevent leaks or warping at the turbo while a quality flex section works to allow normal movement between the chassis and engine without adding strain to the downpipe.

INSTALLATION

This downpipe kit includes everything needed to bolt-on directly with no permanent modifications or alterations to the vehicle. The removal of the factory downpipe is a very long process and is only recommended to be performed by a professional. DIY is not recommended for most on this product. CLICK HERE to view and download a step-by-step install guide (coming soon).

About Integrated Engineering: Merging decades of experience with hundreds of hours of prototyping, engineering, dyno testing and daily usage evaluation has output exhaust systems that are the ultimate compliment to your performance car. IE products are proudly engineered, designed, and manufactured in-house, in Salt Lake City USA.

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: 84845389550

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4.1 ★★★★★
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Verified Purchase
Honorific Tails
Birmingham, US
★★★★★ 3
Cheese the Day with Nylabone's Power Chew Cheese Chew Toy!
Size: X-Large, Color: Cheese
As a devoted dog parent, I've always believed that our furry friends deserve the best, especially when it comes to their favorite pastime—chewing! Nylabone's Power Chew Cheese Chew Toy is a game-changer that's added an extra layer of excitement to our dog's chewing routine. **Chew-Tastic Design:** First things first, the cheese-inspired shape of this chew toy is a hit in our household. Our dog can't resist its quirky design, and it's become a beloved addition to his chew toy collection. It's like a fun surprise every time he reaches for it! **Flavor Pockets for Fun:** What truly sets this chew toy apart is its flavor pockets. We fill them with spreadable treats, turning regular chew time into an epic adventure. Our dog absolutely loves the challenge of getting every last bit of treat, and it keeps him engaged for hours. **Dental Health Bonus:** Beyond the fun factor, the unique textures on this toy serve a dual purpose. Not only do they provide extra sensory enjoyment for our pup, but they also help clean his teeth as he chews. It's a win-win for both entertainment and dental health. **Built to Last:** Now, let's talk durability. Our dog is a power chewer, and this toy has proven to be up to the challenge. Made from Nylabone's most robust material, it's stood the test of time, promoting healthy chewing habits and saving our furniture from destruction. **Satisfaction All Around:** This chew toy isn't just for our dog's enjoyment; it brings joy to our family too. Seeing our furry friend so engaged and happy is priceless. It satisfies his natural urge to chew while teaching him healthy chewing habits. **A Flavorful Experience:** Did I mention the cheese flavor? It runs throughout the toy, adding another layer of enjoyment for our pup. It's like a delicious treat that never ends! **Perfect for Big Dogs:** As the proud parent of an extra-large dog, we opted for the "Souper" size, designed for dogs over 50 pounds. It's the perfect size for our gentle giant. In conclusion, Nylabone's Power Chew Cheese Chew Toy has become an integral part of our dog's life. It's more than just a chew toy; it's an adventure, a dental health solution, and hours of entertainment all rolled into one. We've embraced the mantra of "Cheese the Day" with this fantastic chew toy, and we wholeheartedly recommend it to fellow dog parents looking to add more joy and flair to their furry friend's life!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 27, 2023
D
Verified Purchase
Danielle L Dykhouse
Birmingham, US
★★★★★ 5
Dog approved.
Size: X-Large, Color: Cheese
I’m a 70 lbs Goldendoodle (supposed to be 65, don’t ask) and I love cheese. Real cheese. Sharp cheddar with sourdough bread is my dream, but apparently I’m “on a health journey,” so my people bought me this instead. Does this bone actually taste like cheese? No. I am not fooled. Do I still enjoy chewing it loudly while my humans are trying to watch TV? Absolutely yes. This bone satisfies my need to chew and my emotional desire for cheese-adjacent activities. It keeps me busy, saves the furniture, and lets me crunch dramatically during important dialogue scenes. The yellow color is nice — very cheese-coded — although some cheeses are white, so just something to consider for future versions. Also, good news: it doesn’t smell like cheese at all, which my humans seem very grateful for. Apparently they don’t want the carpet to smell like a deli. Weird. Final verdict: Not cheese. Still enjoyable. Would chew again. ~Barley
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 4, 2026
D
Verified Purchase
Dez F.
Birmingham, US
★★★★★ 5
A Humorous Twist on Tough Dog Toys!
Size: Large, Color: Lobster 3 Pack
I recently purchased the Nylabone Power Chew Dog Toy Pack for Aggressive Chewers from Amazon, and I must say, these toys have been a hilarious hit with my furry friend. As a dog parent of a strong and determined chewer, finding toys that can withstand their chewing prowess is a top priority, and these toys deliver both durability and a touch of humor. The pack consists of three large/giant-sized toys in the shape of a lobster, cheese, and broccoli. The unique and amusing design puts a smile on my face every time I see my dog interacting with them. The unexpected twist brings a playful element to our daily playtime sessions, making it a fun and engaging experience for both of us. When it comes to durability, these toys excel. My dog can be quite aggressive with their chewing, and I've struggled to find toys that can withstand their powerful jaws. However, the Nylabone Power Chew toys have proven to be impressively tough and durable. Despite rigorous chew sessions, these toys have remained intact, with no signs of wear or damage. They provide a reliable outlet for my dog's chewing instincts without the risk of shredding or ingesting any harmful materials. The textured surfaces of these toys add an extra layer of interest for my dog. The ridges and raised bumps provide sensory stimulation, promoting healthy oral hygiene and helping to clean teeth and gums as they chew. I appreciate the added dental benefits these toys offer, as it helps maintain my dog's dental health while they engage in play. I also appreciate the size options available in this pack. Large and giant-sized dogs often require bigger toys to accommodate their larger mouths and chewing strength. The included toys are appropriately sized for larger breeds, ensuring a comfortable grip and maximum enjoyment during play sessions. As a bonus, these toys are made from high-quality, non-toxic materials, so I have peace of mind knowing that my dog can safely interact with them. Safety is a top priority for me, and Nylabone consistently delivers in that regard. In conclusion, if you have an aggressive chewer and are in search of durable, funny, and engaging dog toys, the Nylabone Power Chew Dog Toy Pack is a fantastic choice. These toys provide hours of entertaining play, withstand even the most determined chewers, and offer dental benefits. Embrace the humorous twist and enjoy watching your furry friend engage in safe and engaging play with these fantastic toys. Invest in the Nylabone Power Chew Dog Toy Pack today and let the lobsters, cheese, and broccoli bring laughter and durability to your dog's playtime!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 19, 2023
K
Verified Purchase
Kirstyn Shearer
San Leandro, US
★★★★★ 5
Solid win for any chewing pup!
Size: Small, Color: Broccoli 3 Pack, Size: Small, Color: Broccoli 3 Pack
My pup loves them! Long lasting plus health benefits for his teeth, 10/10 would recommend 💖
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
S
Verified Purchase
Stef
Pawtucket, US
★★★★★ 5
Shark dog approved
Size: Large, Color: Broccoli, Size: Large, Color: Broccoli
My new baby shark.... I mean puppy really enjoys chewing. I can't just give her a ton of pig ears or bully sticks all day, which she would definitely love, so I'm constantly looking for well made chew toys. I'd put this right up with Kong. Very durable and nice. I also love the different textures, she seems to also love it. She can gnaw at the top and chew on the stem. She wanted it as soon as I opened it - it does smell like bacon but I haven't taken a chomp at it to be able to write a complete review! My dog is about 23 lbs but I can see a 80 lb dog chew this, it's not small.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 8, 2025

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