SKU: 90410363449

ARMYTRIX Stainless Steel Valvetronic Catback Exhaust System Dual Matte Black Tips BMW 3-Series | 4-Series F3x 17+

Sale price$1189.35 Regular price$1321.50
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Pay in installments of $330.38 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 30 - Oct 5

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Description

ARMYTRIX Stainless Steel Valvetronic Catback Exhaust System Dual Matte Black Tips BMW 3-Series | 4-Series F3x 17+To harvest the full potential of the BMW engine, we utilize quality T304 stainless steel, forged with the most advanced technologies and by the highest standard, to build our valvetronic exhaust. Meticulously engineered, the system handles an increased volume with ruthless efficiency. The refinement and amplification of power and sound alter the entire identity of the vehicle. Upgrades to HP and torque provide more freedom than ever and the auditory

To harvest the full potential of the BMW engine, we utilize quality T304 stainless steel, forged with the most advanced technologies and by the highest standard, to build our valvetronic exhaust. Meticulously engineered, the system handles an increased volume with ruthless efficiency. The refinement and amplification of power and sound alter the entire identity of the vehicle. Upgrades to HP and torque provide more freedom than ever and the auditory sensation throughout the rev range will have your adrenaline pumping to the beat of the car. Technology-wise, keep up with the rapidly evolving world or risk being on the list of the extinct. Arm yourself with our revolutionary road tech for a smarter driving experience. The valvetronic system introduces a new dimension of versatility; never compromise between sound and stealth. The ARMYTRIX exclusive OBDII dongle system reduces the installation time by 50%! With clear displays and user-friendly controls, navigate through our smartphone app to attain an insightful look into the vehicle's real-time operational status and complete control over the valve settings. Stay Connected, Stay Ahead of the Pack. Performance-wise, deviate from the routine path; go on an adventure down the road less traveled. Let the ARMYTRIX kickstart the real automotive experience. We have tailored each exhaust for carrying the maximum payload to be delivered to thunderous effect. Our streamlined system is lighter, ridded of the OE deadweight and offers an unrestrictive flow; the improved efficiency plays a vital role in the dramatic improvements in both horsepower and torque. Celebrate the liberation of performance, write your own legacy. Quality-wise, ARMYTRIX wouldn't be what we are today, if not for the persistency on offering premier quality exhausts to the users. Started from the initial designing process, attention to detail was essential in laying the foundation for creating exhausts with perfect fitment. Veteran craftsmen bring the blueprints to life with unparalleled skills; each weld administered by steady hands, creating the unbreakable bond, the backbone to greater outputs. Feed your appetite for extra performance through our TI and SS series exhausts, rebel against mediocrity and take back the initiative. Includes
  • 14.3 HP / 14 LB FT. TQ.
  • 7lb Lighter than OEM exhaust
  • Valvetronic Mufflers
  • Wireless Remote Control Kits
  • Dual Matte Black Tips 2X89mm
  • Kit Consists of Front Pipe, Mid-Pipe, Valvetronic Muffler, Wireless Remote Control Kit and Exhaust Tips
Features:
  • Reduction of Installation Time by 50% compared to traditional cable wires
  • Comprehensive Selectable Options
  • Real time Update of Selected Categories
  • Quick & Accurate Data Logging
  • App Controlled Valve System via OBDII Port
  • View Install Instructions Here.
Fitment:
  • BMW 320i F30 17+
  • BMW 330i F30 17+
  • BMW 420i F32 17+
  • BMW 430i F32?17-18
  • BMW 420i Gran Coupe F36?16-17
  • BMW 430i Gran Coupe F32?17-18
Note:
  • OEM BMW Dual Rear Diffuser is required for this exhaust
  • Images are for representation only. Actual Product may vary.
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: 90410363449

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4.2 ★★★★★
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Richard
Phoenix, US
★★★★★ 5
74 monte carlo Resto
Model: NewSLS50_52
Great product easy installation with sheets cut to size,using for Classic car Restoration,floor pan and doors
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
R
Verified Purchase
RTD2
Bozeman, US
★★★★★ 5
Impressive Sound Deadening Solution with Enhanced Audio Quality
Model: NewSLS50_52
I recently purchased the Siless 50 mil (1.3mm) 52 sqft Car Sound Deadening mat, and I am delighted with the results it has delivered. Right from the start, I was impressed with the packaging, which ensured the product arrived in perfect condition. One of the standout features of this sound deadening mat is its ease of use. It was a breeze to cut and modify according to my specific needs. Whether I needed to cover specific areas or customize the size, the mat accommodated my requirements effortlessly. This flexibility made the installation process a breeze. The Siless Sound Deadening mat has proven to be highly effective in reducing outside noise within my vehicle. With just a half cabin install, I noticed a significant reduction of approximately 10 decibels, making my driving experience much quieter and more comfortable. The mat acted as a reliable barrier against external noise, allowing me to enjoy a more peaceful ride. Furthermore, the sound quality from my vehicle's audio system experienced a noticeable improvement. The Siless mat effectively dampened vibrations and minimized resonance, resulting in cleaner and more refined audio output. The mat's thickness of 50 mil (1.3mm) ensures optimal sound absorption, contributing to its effectiveness in creating a quieter and more enjoyable driving environment. I can now appreciate the full range of tones and enjoy a more immersive music experience during my drives. Overall, I highly recommend the Siless 50 mil Car Sound Deadening mat for anyone seeking a reliable and effective solution to reduce noise and enhance audio quality in their vehicle. The easy cutting and modifying process, along with the excellent packaging, contribute to a seamless installation experience. With a significant reduction in outside noise and an improvement in sound system performance, this sound deadening mat has exceeded my expectations.
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Reviewed in the United States on May 27, 2023
C
Verified Purchase
Charles H.
Chelsea, US
★★★★★ 5
Good quality sound deadener at a good price.
Model: NewSLS50_52
Quality sound deadening that adheres to body panels well. You can easily hear the vibration reduction after just the first piece by tapping on the body panel before and after.
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Reviewed in the United States on November 21, 2025
N
Verified Purchase
Nick Frazier
Grantham, US
★★★★★ 4
Good stuff at a good price
Model: NewSLS50_52
Works well and sticks well. I used a roller and it has been over a year and everything still sticking as good as day i put it everywhere. I didnt use any adhesive but I did wipe everything down with acetone before I applied. Good stuff at a good price
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Reviewed in the United States on November 23, 2025
D
Verified Purchase
Darren Gray
Phoenix, US
★★★★★ 5
Good value
Model: NewSLS50_52, Model: NewSLS50_52
Working perfectly. Install of stereo equipment and carpet left me wanting some heat and sound resistant materials.
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Reviewed in the United States on March 23, 2026

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