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 WRX S4's quad exhaust system slashes exhaust pressure while delivering an exhilarating sports sound.
Features:
- Innovative pipe diameter modification from 74.7mm to 60.5mm x 2 to 45mm x 4, achieving low exhaust pressure and minimizing unwanted noise for enhanced performance and sound quality.
- Four symmetrically arranged silencers and striking 98mm titanium tail create a visually impressive rear view and an appealing look when the vehicle is lifted.
- Produces a rich bass sound at normal revs and a sporty roar when the accelerator is pressed.
Specifications
- Part Number
- 31021-AF026
- Brand
- HKS
- Cert. No.
- JQR60244002
- Vehicle
- WRX S4
- Model
- VBH
- Engine
- FA24 (TURBO)
- Model Year
- 21/11 -
- Shape of muffler
- Ti-1 (Titan) (LEGAMAX Sports)
- Main material
- S304
- Diameter of tip
- 98 x 4
- Diameter of center pipe
- 74.7 - 60.5 x 2 - 45 x 4 (*1)
- Close noise level
- Stock 79 HKS 90
- About road clearance (*2)
- Clearance 130mm Portion of the kit: Front pipe
- Remarks
- Product Weight
- 24.14kg
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.