HKS Dual Silent Hi-Power Exhaust for Subaru Legacy GT [BP5] 31019-AF019


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2004-05 Subaru Legacy GT 2.0T [BP5]

HKS Hi-Power Exhaust; Dual Silent Hi-Power by HKS for the Subaru WRX STI

HKS PN# 31019-AF019

Part Number: HKSSTI11 Vehicles: , Brand:

Please note that this brand offers a wide variety of parts, some of which are kept in stock. However, not all products from this brand are kept in regular inventory. As a result, lead times can vary (from 1 day to weeks or months). Following your order, a representative will contact you to explain the order process, and provide an estimated timeframe for delivery. . Following the discussion, should you choose to continue with the order there will be no further option for cancellation (if there are any concerns regarding lead time, please advise us immediately during the initial follow-up). Please order with confidence, as at the time of the initial contact and after being informed of the estimated lead time, should you choose to cancel, you may do so within 1 business day. You are encouraged to read and understand the full terms and conditions of the sale here.


Created by HKS, this product is designed and manufactured specifically for the Subaru WRX STI. This Hi-Power exhaust is a silenced, dual tip exhaust.



Cert. No. 03S01596
Model BP5
Engine EJ20(TURBO)
Model Year 03/05 – 09/04
Shape of muffler HP (TYPE-H)
(silent Hi-Power)
Main material S304
Diameter of tip 120 L&R
Diameter of center pipe 75-60 x 2(*1)
Close noise level Stock 83
HKS 87
About road clearance(*2) Clearance 160mm
Portion of the kit Center pipe
Product Weight




For 2.0GT. Rear section and center pipe. Fits to stock rear under spoiler.


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.

If interested, please contact us at Bulletproof Automotive for more information regarding pricing, fitment, shipping costs, as well as installation recommendations.

Part #: 31019-AF019