APEXi N1-X Evolution Extreme Stainless Steel Tips Axleback Exhaust - 2021+ Lexus IS300 / IS350 - APEX-164AKT20

Special Price $1,169.10 Regular Price $1,299.00
sku
APEX-164AKT20

2021+ Lexus IS300 (Turbo / AWD)
2021+ Lexus IS350 

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.

Vehicle in video: Lexus IS350 F (2021+)

PRODUCT 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
  • 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
Bolt-On Yes
Part Number
  • 164-KT20 - Titanium
  • 164AKT20 - Stainless Steel
Year 2021+
Make Lexus
Model IS300 Turbo / IS300 AWD / IS350
Body Style 4-Door Sedan
Engine 2GR-FSE, 2GR-FKS, 8AR-FTS
Chassis ASE30, GSE31, GSE36
Exhaust Type N1 Evolution Extreme Muffler (N1-X)
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 
System Weight
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.***

WARNING: California Prop 65
Cancer & Reproductive Harm 
www.p65warnings.ca.gov

APEXi N1-X Evolution Extreme Stainless Steel Tips Axleback Exhaust - 2021+ Lexus IS300 / IS350 - APEX-164AKT20 aftermarket automotive part

Designed for 2021+ Lexus IS300 (Turbo/AWD) and 2021+ Lexus IS350, this axleback exhaust uses a straight-thru layout to focus on exhaust efficiency while maintaining a functional, resonant sound character through an internal hybrid silencer.

SKU: APEX-164AKT20. Built with TIG-welded SUS304 stainless steel, this N1 Evolution Extreme (N1-X) rear section is matched to select chassis and finishes with dual-wall, rolled, angle-cut stainless steel tips.

Key Benefits

  • Straight-thru muffler layout emphasizes efficient exhaust flow through the rear section.
  • Internal hybrid silencer balances free-flowing characteristics with functional sound resonance.
  • TIG-welded SUS304 stainless construction supports durability and consistent fitment quality.
  • Patented Megaphone piping structure promotes torque and throttle response across the powerband.
  • Swirling exhaust gas flow effect is used to achieve proven Megaphone-style results.
  • Modular design allows rear section interchange with certain factory exhaust components.
  • Dual-wall, rolled, riveted tips deliver a clean, sport-oriented rear appearance.

Applications

  • Year: 2021+
  • Make/Model: Lexus IS300 Turbo / IS300 AWD / IS350
  • Body Style: 4-Door Sedan
  • Engines: 2GR-FSE, 2GR-FKS, 8AR-FTS
  • Chassis: ASE30, GSE31, GSE36

Specifications

  • Bolt-On: Yes
  • Exhaust Type: N1 Evolution Extreme Muffler (N1-X)
  • Piping Diameter: 60.5mm x 2
  • Tip Diameter: 105mm x 2
  • Pieces: 2
  • Exhaust Tip Style: 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

Notes

  • Sound Level: 87 dB @ 4,500 RPM.
  • Modular design: Midpipe and rear section can be interchanged with factory components.
  • Do not use harsh car wash soap or metal polish cleaners on titanium tips.
  • For titanium tips, use 70% isopropyl alcohol with a microfiber towel.

This axleback system is intended as a direct bolt-on rear exhaust upgrade for the listed Lexus IS chassis, combining SUS304 stainless construction, a straight-thru N1-X muffler layout, and APEXi’s Megaphone piping approach. The modular rear section format supports flexibility when pairing with certain factory exhaust sections.

More Information
Brand APEXi