HKS Full Dual Muffler Catback Exhaust System - Nissan 400Z RZ34 VR30DDT
HKS Full Dual Muffler Catback Exhaust System - Nissan 400Z RZ34 VR30DDT
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Universal fit
No vehicle selection needed.
This part may still fit. Check the details below or contact us before ordering. Ask about fitment
Fitment not confirmed
This part may still fit. Check the details below or contact us before ordering. Ask about fitment
Vehicle fitment
This part is listed to fit the following vehicles.
In Melbourne? Fit it in our workshop.
We fit parts in-house at the RevZone workshop. Book a time and bring your car in.
Description
The HKS Full Dual Muffler for the Nissan 400Z (RZ34) is a cat-back exhaust system featuring a full dual 60.5mm x 2 pipe layout, up from the stock 45mm x 2, delivering an effective cross-sectional area equivalent to an 85mm single pipe. This reduces exhaust pressure by approximately 40% versus stock while maintaining the same minimum ground clearance as the factory system.
Features
- Pipe layout: full dual 60.5mm x 2 (versus stock 45mm x 2)
- Effective cross-section equivalent to 85mm single pipe
- 2-Way Sound System: Aggressive Mode (without lids, ~90 dB close / ~71 dB idle) and Gentle Mode (with lids, ~87 dB close / ~63 dB idle)
- Main silencer: oval 150mm (170 x 120mm), 340mm length
- Silent chamber: 101.6mm diameter, 240mm length
- Outer tip diameter: 110mm
- Weight: 24.1 kg
- Compatible with both 9AT and 6MT transmissions
Fitment
- Nissan 400Z, chassis RZ34, engine VR30DDTT, 2022 onwards
Notes
- Ground clearance is unchanged from stock after installation.
- Sound lids can be fitted or removed by the owner to switch between Aggressive and Gentle modes - no tools required beyond basic hand tools.
- JDM product: any HKS certification applies to the Japanese market. Check your state's regulations before road use in Australia.
Specifications
- Part Number
- 31014-KN002
- Brand
- HKS
- Pipe layout
- dual 60.5mm x 2
- Main silencer
- oval 170 x 120mm, 340mm length
- Silent chamber
- 101.6mm x 240mm
- Tip diameter
- 110mm
- Noise level (close, Aggressive Mode)
- approx. 90 dB / idle 71 dB
- Noise level (close, Gentle Mode)
- approx. 87 dB / idle 63 dB
- Weight
- 24.1 kg
Shipping
Orders are processed within 1-2 business days (Monday to Friday), and orders placed before 12pm AEST are usually dispatched the same day. Once dispatched, standard shipping takes 3-7 business days and express 1-3, with tracking emailed as your order leaves.
If part of your order is out of stock, we'll contact you with the option to split the shipment or hold it until everything is ready. Read the full shipping policy.
Returns
You have 14 days from delivery to request a return on unused parts in their original packaging. Refunds incur a 15% restocking fee (20% for special orders), or choose store credit and the full purchase value is applied to your account.
Parts that have been test fitted, installed, or used can't be returned, and special-order or overseas-ordered items are assessed case by case. Faulty or incorrectly supplied items are always covered at no cost to you. Read the full returns policy.
