The N1 Evolution Extreme is an advancement of the N1 muffler's proven performance. It is designed for optimal exhaust efficiency with mid-pipes that run parallel between the catalytic converter and the rear muffler section, utilizing an H-style piping design for balanced exhaust pressure. This unique modular design allows for interchangeability with the factory OEM exhaust system.
- Product Features:
- Tig-welded SUS304 stainless steel for quiet performance and power gains
- Matched and manufactured for select chassis
- Patented Megaphone piping structure for excellent torque and throttle response
- Compatible with N1-X Evolution Extreme rear section part number 164-KT07
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Bolt-On: Yes
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Part Number: 144-KT08
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Year: 2016, 2017
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Make: Lexus
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Model: GS200t
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Body Style: 4-Door Sedan
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Engine: 8AR-FTS
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Chassis: ARL10
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Exhaust Type: N1 Evolution Extreme Muffler (N1-X)
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Piping Diameter: 60.5mm x 2
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Pieces: 3
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Piping Material: SUS304 Stainless Steel
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System Weight: Mid-pipe only 22.90 lbs, 7.25 lbs lighter than OEM
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Sound Level: 86.7 dB @ 4,500 RPM (with Axleback Part # 164-KT07)
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Special Notes: Modular design, interchangeable with factory exhaust components
⚠️ California Proposition 65 Warning:
This product may expose you to chemicals known to the State of California
to cause cancer or reproductive harm.
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Price Match Guarantee:
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We are committed to providing the best value. If you find a lower advertised price from a verified vendor, we will match it. Shop with confidence knowing you’re getting the industry's lowest price.
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Project Incentives:
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We reward enthusiasts who trust us with their major projects. Use these tiered codes at checkout to apply instant savings to your order:
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• AH180 — $180 OFF $3000+ | • AH400 — $400 OFF $6000+
• AH630 — $630 OFF $9000+
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Fitment Guarantee:
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Avoid the headache of the wrong part. If you are unsure about compatibility, contact us first. If we verify the fitment for your vehicle via email and it doesn’t fit, we will handle the exchange at no cost to you.
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Secure Shipping:
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Flexible Returns:
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Unused items in brand-new, original packaging can be returned within 30 days. While standard refunds incur a 25% restocking fee, we will waive this fee entirely if you choose store credit or an exchange for your next upgrade.
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Exclusions:
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To ensure every customer receives brand-new, untampered components, parts that have been installed, modified, or used are non-returnable. Custom builds, special orders, and wheel/tire packages are considered final sale.
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Need assistance? Reach out via our
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Fitment Guarantee
Fitment guides and tools are helpful—but your car is unique! Some trims and options aren’t always listed, so if you want 100% confidence that a part will fit, our team is happy to double-check for you. We take the guesswork out of your purchase by standing behind our expertise.
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If this product doesn't list your specific vehicle data, simply reach out to support@autohousesupply.com. We will manually verify compatibility for you.
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Our Promise:
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When we confirm a fitment in writing and it doesn’t work for your application, we cover the return shipping and exchange it at no cost to you.
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