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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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16

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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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4.7 ★★★★★
Based on 11 reviews
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Product Reviews
S
Verified Purchase
solartj
Battle Creek, US
★★★★★ 5
He loves it
Size: Large, Color: Dinos Frills (Gray)
I let my 10 month old Great Pyrenees into the house and in seconds he'd found his new toy. He grabbed it and ran to the door to be let outside (I wanted it to be an inside toy). When he got outside he pranced round with it in his mouth with his head held high. It's not often a toy invokes the zoomies but this one did. He'd toss it, grab it and toss it again. He ran over to me and we had a tug of war with it. You should have seen his face when I showed him there was a squeaker. What's even better is that the squeaker seems to move around so it's not always in the same place. He has to hunt for it. He was not happy when I picked it up to take it into the house so I gave it back to him. I then got him to carry it but he refused to take it inside. I'm pretty sure he's got a new favorite toy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 8, 2025
M
Verified Purchase
MalinoisLover
Grantham, US
★★★★★ 4
LOVE this brand. Have many of their styles. This is basically an unstuffed toy.
Size: Large, Color: Dinos Frills (Gray)
I have about 10 -12 different styles of the GoDog brand toys. It is like Xmas when my Malinois dogs get a new GoDog toy. Have loved this brand for many years and have some toys which have lasted 5-6 years -- minor "surgeries" stitch they back together -- until I retired them. They have never just worn out. Just to be clear: THESE TOYS ARE NOT CHEW PROOF. NO STUFFED TOY IS CHEW PROOF. However, this brand of stuffed toy is more chew proof than other brands. But if you are looking for a chew proof stuffed toy be advised -- IT DOES NOT EXIST!! No fabric is chew proof. Even if they invented such a fabric I would not want to ruin my dog's teeth by letting them try to chew through it. Protecting one's dog's teeth should be the highest priority. If a dog can chew through a PLASTIC KENNEL and even METAL WIRE KENNELS (yes, it happens) then they can easily chew through a puffy, fluffy stuffed toy. The "Chew Guard Technology" language may be misleading to some customers who are disappointed in the brand. I defend the brand and have used it for many years. No, I don't get paid or get free toys. Since I have had many styles within this brand and even have the pink version of this style I thought I knew what I was getting. This is basically a toy without stuffing which some people prefer. For whatever reasons my dogs prefer toys that are stuffed. Really stuffed with a firm density that they can sink their teeth into. So this toy will be OK. I can tell it will not be one of their beloved toys like some of the brand's other styles such as the purple brontosaurus. My fault for not reading more closely and assuming the grey version would be exactly like the pink version which is fully stuffed. If they get bored with these two I keep some of the Chew Guard toys stock piled. BTW one can wash and dry these toys. Yes, eventually the squeakers suck up some water and die but one can replace the squeakers. Also on Amazon. So I am willing to replace the squeakers a few times in the life time of one of these toys to be able to wash and dry them occasionally. Usually takes a couple drying cycles to get the heavily stuffed toys dried completely. If you have an aggressive chewer you may wish to look into Goughnuts dog toys or other hard rubber toys that are designed for aggressive chewers. Even then, with a determined dog, the Goughnuts toys can be chewed through. I think they offer a replacement guarantee. The other brand which has some toys of hard rubber is West Paw. An excellent brand that also offers a one time replacement. Bully Sticks are another option for chewers. PLEASE, PLEASE, PLEASE stay away from the hard plastic chew toys like the Nyla Bones. Hard plastic toys will destroy your dog's teeth over time. I learned the hard way (no pun intended) and ruined one of my dog's teeth. Vet asked if I allowed my dog to chew ROCKS !!!!!! Every tooth was cracked or fractured. Not wishing to pull teeth I had to pay for some very expensive root canals and caps. Vet's advise: If you can't dent the toy or chew with your finger nail DO NOT offer to your dog. Good advise to follow. Even some of the Bully Sticks (Costco Brand) are so hard they can chip or fracture teeth. Best for you and your dog.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 1, 2019
D
Verified Purchase
David Kuchar
Phoenix, US
★★★★★ 3
Not indestructible
Size: Large, Color: Dinos Frills (Gray)
When I googled “indestructible stuffy dog toys” this popped up. My 9 month old pup loves stuffies but destroys them quickly and eats stuffing if not caught quickly. Well, this indestructible toy is cute but my dog had it torn apart in under 4 minutes so…🤷🏻‍♀️
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Reviewed in the United States on January 14, 2026
J
Verified Purchase
Jan F.
New York, US
★★★★★ 5
Good quality
Size: Large, Color: Dinos Frills (Gray)
we’ve had many godog toys over the years and although my dog eventually rips through them I do find that they last longer than other cheap toys. Overall very well made!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
A
Verified Purchase
AmazonReviewer
Dallas, US
★★★★★ 5
Cute and fairly long lasting
Size: Large, Color: Dinos Frills (Red)
Lasted from Nov 13th, 2024-August 20th, 2025 lol very impressive. She played with it nearly daily and loved the big squeak. The squeak box was just ripped out so she probably won’t play with it anymore. Happy to order another!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 21, 2025

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