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Your S4 should sound as mean as it looks and drives. Stock is too quiet and others add volume with rasp and drone. iE Catbacks bring a deep, aggressive roar under throttle, while DroneTrap™ helps keep the cabin comfortable. Give your Audi a voice.
One amazing sound. Three ways to make it yours.
Some drives you'd rather keep things low-key. iE valved exhaust adds stock and app-controlled valves that get loud when you want it, or close them to to keep it subdued.. it's your call.
For drivers who want the roar every mile, the non-valved catback delivers a deep, aggressive note. DroneTrap™ helps keep rasp and cabin drone in check.
Take your valved or non-valved iE Catback further with optional Midpipes. Replace two factory resonators with 12 feet of piping for an even bigger sound and improved exhaust flow.
DroneTrap™ is our proprietary resonator, tuned specifically for the B9 S4 V6 to target frequencies that cause annoying cabin drone, rasp, and vibrations. Keep the roar, trap everything else.
Look stronger, bigger, and meaner with over-sized quad slash-cut motorsport tips. No cutting or melted bumpers here, these aggressive tips fill the factory exhaust cutouts with a perfect high-end fit.
No garage-door-style remote to dig out or lose. Control your iE Valved Catback just like stock from your MMI. iE PRO pr APEX Tune Suite users can take manual control with the POWERLink app on your phone or through CarPlay at anytime.
Unlike cheap, thin-walled systems, iE Catbacks fit precisely and are built to handle heat and vibration. T304L stainless, hand TIG welds, boxed hangers, bridged piping, reinforced stamped resonators, and lap-joint connections help keep the system tight and sealed. Drive it hard.
You don't need a lift or a welder. The iE Valved Catback is a true bolt-on that lines up with your factory hangers and mounts, using basic hand tools. Bolt it on in your garage then let it rip.
| Material | Stainless steel T304L |
|---|---|
| Resonator | iE DroneTrap™ B9 S4 V6T specific design |
| Tip Design | 90MM Single wall slash-cut Quad tips (2 per side) |
| Diameter | Dual 2.5" Piping High-flow for any power goal |
| Construction | TIG welded Mandrel bent |
| Valve Control | Factory control / MMI or iE POWERlink App with any PRO or APEX Tune Suite Requires valved exhaust option* |
| Hanger design | Reinforced boxed design - |
| Downpipe Compatability | Stock or aftermarket - |
| Midpipe Compatability | Stock or iE Midpipes - |
+ Aggressive deep roar under throttle + DroneTrap™ smooths harsh annoyances + No highway drone or cabin fatigue + Built strong with boxed hangers + True bolt-on with no cutting or welding
Not with iE. Our Catbacks use proprietary DroneTrap™ technology to target and cancel the exhaust frequencies that cause interior drone. This keeps the exhaust aggressive under throttle while remaining comfortable during steady highway cruising.
Yes. iE Catback systems use premium 304 stainless steel for it's excellent corrosion resistance and long-term durability. Combined with reinforced boxed hangers and secure lap-joint connections, this construction keeps the exhaust strong, sealed, and reliable in any climate.
With iE, installation is straightforward and DIY-friendly. These catbacks are a true bolt-on system that requires no cutting or welding and installs with basic hand tools using factory mounting locations. Most owners will have no trouble performing the installation in their own garage, however an auto-lift will make life much easier.
No, and that's exactly what drivers asked for. Other valved systems ship a remote that works like a garage-door opener. iE valves are controlled right from the factory MMI controls or through our POWERlink app with an iE PRO Tune Suite.
Enjoy a quick and hassle-free DIY install. Basic hand tools are all that is needed for this one.
Fitment notes: MMI or POWERlink app exhaust valve control requires iE Catback option
Eurosport Performance does not have live inventory. Although we aim shipping out not stocked products within 5 business days, supply constraints, import proceedures and product availability can cause additionnal delays. Please refer to the table below for more accurate details.
In stock - We have the item in stock at our warehouse and you can expect fulfillment within 24 hours.
Usually ships within 5-7 business days - We must import this product from our supplier or the manufacturer. Standard import proceedures take between 5-7 business days and you can expect fulfillment within 8 business days.
Back ordered - This product is out of stock at our warehouse with units in transit from our supplier. Fulfillment can vary.
If you wish to have a more accurate ETA, please send us a message at info@es-performance.com and we will respond within 24-48h.
12 Months
All products sold by Eurosport Performance are warrantied against manufacturing defects according to the manufacturer's warranty policy*. Warranty does not cover abuse, misuse, damages caused from improper manipulation, normal wear and tear, improper installation, or damages resulting from racing. Warranties only apply to the original owner. If a product is found defective, the customer will receive, at the discretion of Eurosport Performance, a replacement part at no extra cost. Eurosport Performance is not responsible for fitment inaccuracies regardings products sold outside of the United States or Canada. Please confirm compatibility prior to placing an order or contact us for more information.
* Conditions may apply. Please visit our Refund Policy or contact us at info@es-performance.com
