APEXi® N1-X Evolution Extreme 304 SS Header-Back Exhaust System with Split Rear Exit (164KT209)
SKU: 9651070105

APEXi® N1-X Evolution Extreme 304 SS Header-Back Exhaust System with Split Rear Exit (164KT209)

Sale price$1111.08 Regular price$1234.53
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

APEXi® N1-X Evolution Extreme 304 SS Header-Back Exhaust System with Split Rear Exit (164KT209)N1 X Evolution Extreme 304 SS Header Back Exhaust System with Split Rear Exit (164KT209) by APEXi. Modular design Midpipe and Rear Section can be interchanged with factory exhaust components. With Resonator. Exhaust System Type: Header Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 2. 38" x2. Exhaust System Sound: Aggressive Loud. The N1 Evolution Extreme is based on the proven performance basics of the N1 muffler which emphasizes

N1-X Evolution Extreme™ 304 SS Header-Back Exhaust System with Split Rear Exit (164KT209) by APEXi®. Modular design - Midpipe and Rear Section can be interchanged with factory exhaust components. With Resonator. Exhaust System Type: Header-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 2.38" x2. Exhaust System Sound: Aggressive / Loud. The N1 Evolution Extreme is based on the proven performance basics of the N1 muffler which emphasizes optimum exhaust efficiency utilizing a straight-thru layout design. Equipped with an internal hybrid silencer uniting power and free flowing characteristics with effective functional sound resonance.

Patented Megaphone piping structure to produce excellent torque and throttle response throughout the powerband. This piping design allows for a swirling exhaust gas flow effect that has for years produced proven results

Features:

  • High-level of quality using tig-welded SUS304 stainless steel uniting quiet performance with high-power performance gains
  • Matched and manufactured for select chassis
  • Ideal for the daily driver car of an enthusiast
  • Made from high-quality materials
  • Ensures unrivaled durability
  • Provides reliable service for years ahead

Do Not Use metal polish, cleaners, solvents, etc. containing abrasive chemicals/substances when cleaning titanium tips.
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: 9651070105

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4.7 ★★★★★
Based on 2192 reviews
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Phanessa Hernandez
Louisville, US
★★★★★ 3
It’s alright.
Size: Queen, Number of Items: 2
Not bad pillows. They are comfortable but mine came with an odd odor, kind of mildewy smell to it. Had to spray it down to tolerate sleeping on it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
A
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ALEXANDRA W.
Pawtucket, US
★★★★★ 5
Nice pillows
Size: Queen, Number of Items: 2
Have had these a few months and so far really like them! They don’t really feel very cooling, but I also run VERY HOT so it could just be me. The foam holds up well and hasn’t flattened like others I’ve tried. They come very compacted- I was shocked how much they expanded!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 22, 2026
B
Verified Purchase
Balous belote
New York, US
★★★★★ 5
Mr.b
Size: Standard, Number of Items: 2
The pillows are cool and comfortable
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Reviewed in the United States on May 27, 2026
J
Verified Purchase
Jennifer
Lowell, US
★★★★★ 5
Awesome Pillow!!!
Size: Queen, Number of Items: 1
This pillow is Amazing!!! So Great to sleep on. I finally can get a good night's sleep!!! Its very soft and comfortable. I also haven’t gotten up with a stiff neck in the morning either!!!
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Reviewed in the United States on May 16, 2026
A
Verified Purchase
Adam Rigdon
Chelsea, US
★★★★★ 5
Love them!!
Size: Queen, Number of Items: 2, Size: Queen, Number of Items: 2
Ok I normally don't leave reviews but I had to on this pillow. I was looking forever for a pillow and was nervous about buying one because you know how that usually goes when it comes to buying pillows. They arrived compressed but when you unwrap them they blow up to be a heavy duty pillow. Firm but not too firm. I don't like super soft pillows that you can roll up in a ball with one hand, I like a pillow that gives support and these do just that. They are cooling as well they are pretty for a pillow with the unique design. If you are in the market for a pillow and reading this THEN BUY THIS PILLOW & come back to tell me thank you. I promise you will NOT be disappointed. No I didn't get paid to say any of this. I wanted to give a honest review where it deserves one! You will not be disappointed! Thanks for the fast over night shipping as well. Not to mention the pricing is on point. I can say right now you will not find 2 pillows of this quality & price.
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Reviewed in the United States on April 1, 2026

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