IE's Catback Exhaust System for your Audi B9/B9.5 SQ5 features our DroneTrap technology to deliver an enriched sound without the annoying drone. Our passion for design shines with cutting-edge engineering and manufacturing techniques, mandrel-bent, stainless steel, TIG welding, and multi-point reinforcements to deliver an aggressive and refined exhaust note from the turbo six-cylinder engine.
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Description
IE Catback Exhaust System For B9/B9.5 SQ5IE's Catback Exhaust System for your Audi B9 B9. 5 SQ5 features our DroneTrap technology to deliver an enriched sound without the annoying drone. Our passion for design shines with cutting edge engineering and manufacturing techniques, mandrel bent, stainless steel, TIG welding, and multi point reinforcements to deliver an aggressive and refined exhaust note from the turbo six cylinder engine. Delivers a sporty, deep, and enhanced exhaust sound
- Delivers a sporty, deep, and enhanced exhaust sound
- Includes IE's proprietary DroneTrap resonance tuning system
- Replaces entire exhaust from downpipe connection back
- High-flow design to support any power goal
- 100% no-fuss bolt-in direct replacement, no cutting or welding
- Mandrel bent TIG-welded T304L stainless steel
- Reliable OEM-quality flex sections
- Leak-free exhaust clamps
- Reinforced multi-point boxed exhaust hangers for long life
- Stamped multi-wall center muffler
- Straight sections are reinforced and bridged for no-rattle operation
- Full kit includes all hardware and clamps for complete install
- Compatible with both sport and standard differentials
HEAR IT IN ACTION
AGGRESSIVE, REFINED, SOPHISTICATED
IE's advanced DroneTrap technology captures the pulse waves responsible for your engine's exhaust note and draws them into a mathematically tuned resonator. The internal port is engineered to resonate these waves against each other in a process that selectively cancels out those responsible for annoying drones. The remaining waves produce the deep and enriched exhaust acoustics enthusiasts love.
COMPLETE TRUE CATBACK
IE's SQ5 catback includes all sections to replace the factory tailpipes, mufflers, resonators, and midpipes up to the downpipe. Enjoy an entirely new exhaust system that delivers an instant and perfect balance of flow and harmonics to your Audi S-class SUV.
DESIGN DETAILS
STRONG, REINFORCED, RELIABLE
ADVANCED ENGINEERING
Advanced 3D scanning tools and cutting-edge software provide our engineers with a high-resolution digital model of the SQ5 chassis. This data is then used to optimize the exhaust design for flow and performance utilizing all available space for the perfect catback design.
TIG WELDED T304L STAINLESS STEEL
A quality catback needs to sound remarkable AND stand the test of time. All piping is constructed of mandrel-bent T304L stainless steel to offer superior corrosion resistance. All joints are expertly TIG welded by hand using precise fixtures and tooling. We take great pride in knowing your new exhaust was built strong to last.
STAMPED CENTER RESONATOR
The magic of IE's center resonator doesn't end with our internal DroneTrap technology. The entire system is wrapped up in our stamped multi-wall housing. These design details reinforce the resonator housing inside and out and protect it from warping or splitting at the welds under normal exhaust movement.
RELIABLE FLEX SECTIONS
The forward midpipe sections of our catback incorporate high-quality double-wall flex joints with the strength to remain leak-free. Enjoy your exhaust upgrade without worry, knowing your flex sections can withstand forces from even aggressive track and racing environments.
REINFORCED HANGERS
Engine movement and exhaust weight are transferred into the exhaust hangers, which puts a lot of stress on the mount brackets. IE's catback system is manufactured with multi-point and boxed-in hanger mounts that will hold your exhaust securely in place without any annoying rattles or breaks.
BRIDGED PIPING
Parallel sections of the rear catback are reinforced and bridged to offer superior strength and weight dispersion. This minor detail works hard to reduce stress on the welds and protect the piping from vibrations and twisting that can lead to leaks and rattles.
Install your IE catback without any permanent modifications or installation hassles. The installation process is straightforward and accomplished with standard mechanic tools. An auto-lift is highly recommended.
Install time around 2-3 hours
VEHICLE FITMENT GUIDE
| MAKE | MODEL | YEAR | ENGINE |
|
AUDI |
SQ5 |
2018-2023 (B9/B9.5) |
3.0T (Turbocharged) - Petrol |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.7 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 4
Baby bumps and bodyguards
Format: Kindle
Dark, emotional, and unexpectedly tender, Not Ready is an omegaverse romance that delivers found family feels, fierce protectiveness, and a very pregnant heroine who refuses to break. Vale’s on the run from a stalker, but lands in the arms of three private security alphas, cue the swoony tension, fake marriage twist, and slow-burn heat.
It’s a little gritty, a little soft, and a whole lot addictive. If you love protective alphas, high stakes, and heroines with quiet strength, this one’s a must-read.
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Reviewed in the United States on December 18, 2025
★★★★★ 5
Strong Omegaverse Comfort and a Attention Grabbing Plot
Format: Kindle
Jillian West never misses when it comes to Omegaverse, and Not Ready is no exception. This story was the perfect blend of cozy comfort and emotional depth while still delivering a strong plot.
Vale is such a powerful heroine, she is strong, capable, and determined but I love that she still allows her pack to love and take care of her. It’s that balance of independence and vulnerability that makes her so relatable.
The relationship dynamics were amazing: Bishop is steadfast and completely head over heels, Mercy is skeptical but protective in his own way, and Holt is the hesitant one whose slow fall is so satisfying to watch unfold.
The romance hits that sweet spot between insta-love and cautious build, keeping me hooked the entire way through. And that ending. Oh my god, the cliffhanger! I need the next book in this duet immediately.
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Reviewed in the United States on August 28, 2025
★★★★★ 5
Interesting
Format: Kindle
So I will say I enjoyed the story, for sure had its moments where it dragged but it was a great story. I really liked that omegas picked their alphas/make the pack. Normally the Alphas make it and the omega fits in with them which is great but I enjoyed this new version where all the power basically went to the omega. It was a nice change of pace. I can admit some of the weird bedroom stuff with her being pregnant was odd, it’s really not hard to do stuff when pregnant (I know I’ve had two and it’s normal and even encouraged at the end especially if you want the baby out). But I like the story as a whole and will read the second, I do hope the next one isn’t dragged bc it stopped being action or tense after she met her alphas and I don’t think it was brought up or properly done when they tried to do it. More sweet after she left.
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Reviewed in the United States on November 11, 2024
★★★★★ 3
I’m a little disappointed.
Format: Kindle
I usually like Jillian West’s books but this one was missing a lot for me. The pregnancy didn’t come across as real. She’s on her feet for 12 hour days but is perfectly healthy at 8 months pregnant? Yet the week she moves in all of a sudden she’s not? She is planning on actually running during one of the plot buildups. But at 8 months pregnant that’s incredibly hard to do. The lack of breathing ability and lung space, the change in body center, mass, and gravity. All of it prohibits running, unless you’re an athlete this didn’t come off as at all realistic.
I didn’t feel any connection with the alphas. There wasn’t any emotional connection. It could be because of the tense it was written in. But I didn’t get any deep feelings out of this. It came across as checking off boxes. Even the spicy scenes weren’t really believable for me. I wanted to see them fall for her, and it just kind of all fizzled. Even Bishop.
One thing I did really like was the ending. I did not see it coming and I’m interested in reading book two because of it. But on the whole this book was mostly disappointing for me.
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Reviewed in the United States on March 16, 2024
★★★★★ 4
4.25 stars
Format: Kindle
Vale is an 8 month pregnant omega working as a waitress at a strip club and a cam girl. She starts to get very creepy vibes from a regular at the club, and her baby daddy ghosted her. She has had an online relationship with a man named Bishop through her cam girl status. One night, bishop was paying to watch her sleep and ansthe creepy regular Andrew break in and watch her sleep he tells vale to come to him at his business now. She flees and finds herself at a large security company with some.hot of alphas who are there to help her. This imegaverse is a little different than I have read, but I am thoroughly enjoying it. Vale is not a traditional omega she was raised by a single beta mom, and the alphas are not normal alphas they have never really loved pack life. But they are ruthless mercenaries. They need her, and she needs them. I love the aspect of the stalker and now the plot twists at the end, so so good. Sometimes, it seemed a little slow and stale mated, but since this a duet, I think It was just her starting to have Vale get to know her alpha suitors. Cliffhanger for sure with this one.
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Reviewed in the United States on September 9, 2024