Redline360 is an official SPOCOM Sponsor!

APEXi N1 Evolution-X Exhaust Lexus IS300 / IS350 (21-22) Axleback- Evolution Extreme w/ Stainless or Titanium Tip 164-KT20/ 164AKT20
APEXi N1 Evolution-X Exhaust Lexus IS300 / IS350 (21-22) Axleback- Evolution Extreme w/ Stainless or Titanium Tip 164-KT20/ 164AKT20
APEXi N1 Evolution-X Exhaust Lexus IS300 / IS350 (21-22) Axleback- Evolution Extreme w/ Stainless or Titanium Tip 164-KT20/ 164AKT20
APEXi N1 Evolution-X Exhaust Lexus IS300 / IS350 (21-22) Axleback- Evolution Extreme w/ Stainless or Titanium Tip 164-KT20/ 164AKT20
APEXi N1 Evolution-X Exhaust Lexus IS300 / IS350 (21-22) Axleback- Evolution Extreme w/ Stainless or Titanium Tip 164-KT20/ 164AKT20

APEXi N1 Evolution-X Exhaust Lexus IS300 / IS350 (21-22) Axleback- Evolution Extreme w/ Stainless or Titanium Tip 164-KT20/ 164AKT20

Regular price
$1,329.05
Sale price
$1,329.05

Add to cart for shipping quote

Fitment Information

  • Lexus IS300 (2021, 2022)
  • Lexus IS350 Turbo / AWD (2021, 2022)
  • Body Style: 4-Door Sedan
  • Engine: 2GR-FSE, 2GR-FKS, 8AR-FTS
  • Chassis: ASE30, GSE31, GSE36

Special Notes:

  • Sound Level: 87 dB @ 4,500 RPM. Modular design-> Midpipe and Rear Section can be interchanged with factory exhaust components.

  • NOTE: Do not use harsh car wash soap or metal polish cleaners when cleaning titanium tips.  We recommend using 70% isopropyl alcohol with a microfiber towel to clean the titanium tips.***

    Specs & Features

    • Axleback exhaust - N1 Evolution Extreme Muffler (N1-X) -Dual Exit
    • Piping Diameter: 60.5mm. x 2
    • Tip Diameter: 105mm. x 2
    • Pieces: 2
    • Exhaust Tip Style: 
      • Titanium Round - Dual wall rolled, Angle cut (Riveted)
      • Stainless Steel Round Dual wall rolled, Angle cut (Riveted)
    • Piping Material: SUS304 Stainless Steel
    • Muffler Material: SUS304 Stainless Steel
    • Muffler Tip Material: (SUS304) Stainless Steel or (TP270) Titanium 
    • High-level of quality using tig-welded SUS304 stainless steel uniting quiet performance with high-power performance gains
    • Matched and manufactured for select chassis
    • 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.

      Product Description

      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. A newly adopted muffler tip completes the tail end of the exhaust that serves both purposes of function and form. Constructed with a light weight titanium material rolled and riveted onto a double pipe structure which acts as a diffuser enabling temperature reduction, meanwhile retaining a sporty heat gradation appearance.

      Redline360 sells only genuine and authentic APEXi products.

      APEXi Brand Logo

      Prop 65 Warning WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.


      More in this category
      APEXi N1 Exhaust
      Lexus IS300 Exhaust
      Lexus IS300 Parts
      Lexus IS350 Exhaust
      Lexus IS350 Parts
    • Exhaust
    • See all APEXi parts

      Reviews on this product


      Ordering from Redline360
      Redline360 is an Authorized Dealer so we only sell authentic and genuine parts and accessories.

      Order updates, tracking and info
      Our goal is your complete satisfaction. Upon ordering, you will receive an email confirmation of your order along with your invoice. You will be able to log into our website 24/7 to check on your order at any time. Your order is processed Monday through Friday from 8am to 6pm PST as soon as it is placed. Once your order ships, we will email you a tracking number so you can track your package.

      Protect your purchase
      Redline360 offers our customers piece of mind! We have partned with Extend to offer you Extend Product Protection and Extend Shipping Protection. Read about each protection that Extend offers to Redline360 customers!

      Multiple distribution points ready to serve you!
      We ship from multiple locations around the United States so you receive your part as quick as possible. Not every warehouse stocks all the same parts, so the closest warehouse to you that has the part in stock is where your order will ship from. We ship from California, Nevada, Indiana, Michigan, Florida, Texas and Pennsylvania.

      Secure Ordering
      We take security seriously! We are never exposed to your credit card information, and it's never stored. Credit card transactions go through the credit card processor directly. We also offer various other payment methods such as PayPal, Affirm Financing (Pay over time), Amazon Pay, Apple Pay and more!

      Any non CARB compliant items can not ship California. We will notify you if we have to cancel your order.

      Some products may be subject to local rules, laws and regulations in certain areas. Always check your local laws to determine legal restrictions. We are not responsible if you buy a product that is not legal in your area.

      For items that have free shipping, free shipping only applies to the lower 48 states.

      Questions? Contact us.

      Actual item may vary from picture