Subaru Impreza GRB/GRF (Hatch) 2007 to 2014 – HKS Silent Hi-Power Exhaust System (87089235)
£840.00 Ex.Vat | £1,008.00 Inc.VAT
SKU#91637 | MPN: 31019-AF026
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Including Center Pipe. Compatible with tS, tS Type RA & SPEC C.
Not compatible with R205.
Please scroll down for Specifications
For more details or photos please don’t hesitate to contact us, email: sales@japperformanceparts.co.uk or phone: 01293 520090, or better yet why not come down and visit us at our site in Crawley, open weekdays 9:00am-6:30pm and Saturdays 9:00am-4:00pm.
Shipped in 3-5 working days
Only 1 left in stock
Description
To maintain the exhaust efficiency, enlargement of the exhaust pipe is usually required; the sound level tends to be increase and low-tone. The exhaust system with a cannon ball-shaped shell usually has lower silencer capacity than an oval-shaped shell; therefore, to reduce the sound level, the pipe diameter is narrowed. However, a narrow pipe diameter also reduces the exhaust efficiency and increase the exhaust pressure. HKS utilized original unique technology to maintain the exhaust capacity and sound level to meet the JASMA standard which is more severe than the regular safety standard. Inner structure of the silencer was redesigned so the unwanted low exhausts resonance was eliminated, and the sound quality was improved.
HKS: Racing Muffler GRB/GRF (Hatch)
| Cert. No. | JQR300931364 |
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| Vehicle | IMPREZA WRX STI |
|---|---|
| Model | GRB |
| Engine | EJ20/EJ25(TURBO) |
| Model Year | 07 – 14 |
| Shape of muffler | HP SC (silent Hi-Power) |
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|---|---|---|
| Main material | S304 | |
| Diameter of tip | 94 L&R | |
| Diameter of center pipe | 65 (*1) | |
| Close noise level | Stock | L80 R80 |
| HKS | L90 R89 | |
| About road clearance(*2) | Clearance | 156mm |
| Portion of the kit | Main silencer | |
| Remarks | ||
| Product Weight | ||
Remarks
Including Center Pipe. Compatible with tS, tS Type RA & SPEC C.
Not compatible with R205.
About HKS muffler
*1: About center pipe
Diameter of center pipe is the portion that has the largest diameter. (Excluding silencer and tip.) It is the condition with stock suspension.
*2: Minimum road clearance between HKS muffler (Any parts included in the kit) and road surface. Therefore, it may be different from actual road clearance of the vehicle.
The data is basically the condition with stock suspension. However, please understand that some items have data with low down spring or ride height adjustable suspension kit.
Caution: Hook, bracket, stay may be changed without prior notice.
★ Exhaust noise level at idle.
Additional information
| Weight | 70 kg |
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