SKU: 39363670926

aFe Power MACH Force-Xp 3" to 2-1/2" 304 Stainless Steel Cat-Back Exhaust System - Audi B9 A4 Quattro

Sale price$679.05 Regular price$754.50
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 29 - Aug 3

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Description

aFe Power MACH Force-Xp 3" to 2-1/2" 304 Stainless Steel Cat-Back Exhaust System - Audi B9 A4 QuattroPerformance Gains: This system produced gains of up to +13 HP and +22 lbs. x Ft. TQ., as measured on our in house dyno. 3" 2 1 2" 304 Stainless Steel Construction: This cat back exhaust system is constructed of 3" 2 1 2" mandrel bent 304 stainless steel tubing for maximum strength and durability. High Flow 304 Stainless Steel Polished Muffler: This system features a high flow 304 stainless steel polished muffler, producing a throaty sound. The muffler

Performance Gains:
This system produced gains of up to +13 HP and +22 lbs. x Ft. TQ., as measured on our in-house dyno.

3" - 2-1/2" 304 Stainless Steel Construction:
This cat-back exhaust system is constructed of 3" - 2-1/2" mandrel-bent 304 stainless steel tubing for maximum strength and durability.

High-Flow 304 Stainless Steel Polished Muffler:
This system features a high-flow 304 stainless steel polished muffler, producing a throaty sound. The muffler has a polished finish for ultimate corrosion resistance.

Dual 4" Diameter Polished Exhaust Tips:
Finishing off this exhaust system are dual 4" diameter polished stainless steel exhaust tips. The tips features a laser etched aFe POWER logo for a unique style.

Installation:
Utilizing a factory style flange and hangers this system is a direct bolt-on system, which requires no cutting or modifications for a hassle-free installation.

Interlock Flex Pipe:
This cat-back exhaust system uses a heavy duty flex pipe with an internal interlock liner for added strength and durability.

Computer-Aided Design:
Utilizing state-of-the-art computer-aided design technology, this exhaust system is designed for custom, high tolerance factory fitment.

MIG-Welded:
100% MIG-Welded for race-proven strength and durability.

Emissions Disclaimer:
This product does not require a CARB EO#.

aFe POWER exhaust systems are engineered and manufactured in our Corona, California manufacturing facility.

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: 39363670926

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4.2 ★★★★★
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Cme411
Battle Creek, US
★★★★★ 3
They're ok
Size: Large, Color: Set-mu2
These are ok. I'm 5'6", 150lbs. I got a large. The colors are fun. The waist band is comfortable, fits well, doesn't dig in, and sits high enough to not affect a my C-section scar, but they constantly ride up.
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Reviewed in the United States on March 12, 2026
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Anonymous
Waukegan, US
★★★★★ 5
Cotton panties need to be the standard- these are amazing!
Color: C-multicolor(6 Pack), Size: Medium
SO comfortable!! I’ve never owned a pair of 95-100% cotton underwear and I’m never going back. These are so breathable, soft and well made for an affordable price! The lacey detail is so cute and feminine. I got the mediums cause I don’t like my underwear squeezing me but don’t want them too loose either. After washing and drying they fit nicely. They hit at waist as well which I love. Would definitely recommend!
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Reviewed in the United States on May 28, 2026
R
Verified Purchase
Richard B.
Charlottesville, US
★★★★★ 5
Fantastic
Color: A-multicolor(6 Pack), Size: Large
Very soft and comfortable no riding up
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Reviewed in the United States on May 25, 2026
A
Angie_00
Massapequa, US
★★★★★ 5
Comfortable Cotton Underwear
These cotton underwear are the perfect combination of comfort and cuteness. They fit true to size and feel very soft and comfortable for everyday wear. The cotton material is breathable and comfortable enough to wear all day without any issues. I also really like the lace detail. It adds a little bit of style and femininity without taking away from the comfort at all. The lace is soft rather than itchy, which is a huge plus. The colors are all pretty and exactly as pictured. They also hold up well after washing. I did not notice any shrinking, stretching, or fading, and they kept their shape nicely. Overall, these are comfortable, flattering, and well made underwear.
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Reviewed in the United States on May 17, 2026
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RachieG
Grantham, US
★★★★★ 5
Comfy everyday undies
These were really comfortable for everyday wear and didn’t dig in or roll throughout the day. The quality of the cotton felt soft and breathable while still having enough stretch to fit nicely. I also liked that they stayed fairly seamless under leggings and thinner clothing. Good balance between comfort and practicality. I’ve worn them several times and no sign of wear and tear thus far.
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Reviewed in the United States on May 10, 2026

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