The N1 Evolution Extreme mid-pipe runs parallel between the catalytic converter and the rear muffler section, using an H-style layout to equalize pressure between both pipes. Its modular design is interchangeable with factory exhaust components; the rear section is sold separately.
Specifications
- Part Number: 144-KT12: Resonated; 144-KT12P: Non-Resonated
- Exhaust Type: N1 Evolution Extreme Muffler (N1-X)
- Piping Diameter: 65mm. x 2 - 50mm. x 4
- Pieces: 3
- Piping Material: SUS304 Stainless Steel
- System Weight: Mid-pipe only 25.90 lbs. (Stock- 35.50 lbs.) 7.6 lbs. lighter than OEM
- Sound Level: Sound Level (with part # 164-KT01 or 164AKT01): 92.2 dB @ 4,500 RPM.
- Bolt-On Installation: Yes
Fitment
- Year: 2016-2021
- Make: Lexus
- Model: GS-F
- Body Style: 4-Door Sedan
- Engine: 2UR-GSE
- Chassis: USC10
Notes
- Modular design: Mid-pipe and Rear Section can be interchanged with factory exhaust components.
- Replacement gaskets: Front Section (Header to Midpipe) x2; P105 x D66.5: 3901-1650; Mid Section (Center of the Midpipe Kit) x2; P97 x D66.5 : 3901-1660; Rear Section (Connecting to Rear Axleback) : Factory OE Donut Gasket (Lexus OE Factory product)
| Brand | A'pexi |
|---|---|
| Type | Mid-Pipe |
| SKU | 144-KT12P |
| Weight | 30.0 lb |
| Make | ["Lexus"] |
| Model | ["GS"] |
| Material | ["gid://shopify/Metaobject/91049197865","gid://shopify/Metaobject/90679279913"] |
| Manufacturer Type | ["gid://shopify/Metaobject/90137755945"] |
Shipping: Some items may qualify for free shipping with Local Pickup in store. All orders have a 2–3 business day processing time. Some orders may have extended shipping times based on current stock status — we'll confirm the lead time at order placement.
Returns: Accepted within 30 days of delivery for unused product in original packaging. Returns are subject to a 25% Restocking Fee. Special-order and custom-built items are final sale.
Warranty: All products carry the manufacturer's full warranty. Coverage is honored through PMD as your authorized dealer.
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