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GrimmSpeed

V2 Bypass Valve Red

Fits: 15-21 WRX

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Pay over time available · Est. $11.00/payment
ⓘ

Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

GrimmSpeed V2 Bypass Valve Red
Fits: 15-21 WRX
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Fitment

Please Note: Fits Subaru WRX 2015-2021. GrimmSpeed V2 bypass valve in red, part 126033 (variant SKU grm126033RED). Recirculating bypass valve; no tuning required. Title fragment '126033RED' removed per title rules; part number lives here and in the description.
  • 2015–2021 Subaru | WRX

Description

The GrimmSpeed V2 Bypass Valve (part 126033) in red is a recirculating bypass valve for the 2015-2021 Subaru WRX. GrimmSpeed designed it to replace the leak-prone OEM bypass valve: with the GrimmSpeed Bypass Valve installed, there is a noticeable change in sound and crispness through the intake, and the car builds boost much more quickly than with the OEM version. No tuning is required.

Features

  • Valve body and base designed for this fitment from billet 6061 aluminum, anodized red for corrosion resistance and a brilliant appearance
  • Massive 38mm diameter aluminum piston to quickly dump pressure, for leak-free operation and proper operation of a forced-induction platform
  • Buna-N O-rings for resistance to abrasion and any fluids that may find themselves in your intake system
  • Swivel fitting accommodates custom setups and allows for easy installation
  • No tuning or adjustment required
  • V2 changes: inspection port removed, internal piston redesigned to eliminate the potential failure points seen in the V1 design, internal spring tension adjusted, main body design updated, and the V1 internal brass piston exchanged for a lighter-weight hard aluminum piston for better valve response

Specifications

  • Brand: GrimmSpeed
  • Part number: 126033
  • Product: V2 bypass valve
  • Color: Red
  • Material: Billet 6061 aluminum
  • Piston: 38mm diameter aluminum
  • O-rings: Buna-N
  • Vent type: Recirculating
  • Fitment: Subaru WRX 2015-2021

What's in the Box

  • One GrimmSpeed V2 bypass valve in red, part 126033

Installation

GrimmSpeed states that no tuning or adjustment is required for this bypass valve, and its swivel fitting accommodates custom setups and allows for easy installation.

Questions & Answers

Q: Does this bypass valve fit my 2018 Subaru WRX?

A: Yes. This GrimmSpeed V2 bypass valve (part 126033) is listed for the 2015-2021 Subaru WRX, which includes the 2018 WRX.

Q: What is included in the box?

A: The box contains one GrimmSpeed V2 bypass valve in red, part 126033.

Q: Does this valve require tuning?

A: No. GrimmSpeed states there is no tuning or adjustment required for these bypass valves.

Q: What changed in the V2 version?

A: The V2 removed the inspection port, redesigned the internal piston, adjusted the internal spring tension and updated the main body design. It also exchanged the V1 internal brass piston for a lighter-weight hard aluminum piston, resulting in better valve response.

Shipping and Delivery

Review our Shipping Policy for delivery details, shipping costs and exclusions.

Warranty and Support

For GrimmSpeed warranty information, contact our support team.

Return and Refund

Eligibility, exclusions, applicable fees and exceptions are detailed in our Return Policy. Restrictions apply to special-order and custom products.

Proposition 65

Proposition 65 Warnings: cancer and reproductive harm www.p65warnings.ca.gov