SKU: 19314308443

GrimmSpeed V2 Bypass Valve Black For Subaru 04-21 STI (126032BLK)

Sale price$121.05 Regular price$134.50
Save 10%

Pay in installments of $33.62 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 17 - Aug 22

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

GrimmSpeed V2 Bypass Valve Black For Subaru 04-21 STI (126032BLK)The days of sacrificing performance to leaky BPVs are over, because the long awaited GrimmSpeed Bypass Valves are here! The long awaited return of the GrimmSpeed Bypass Valves is here! Our valves have been a highly sought after product, but due to the intensive assembly process, it has been hard to keep them on the shelves, which in turn causes frustration among our customers. To address this issue, our team has worked diligently to redesign the BPV

The days of sacrificing performance to leaky BPVs are over, because the long-awaited GrimmSpeed Bypass Valves are here! The long-awaited return of the GrimmSpeed Bypass Valves is here! Our valves have been a highly sought-after product, but due to the intensive assembly process, it has been hard to keep them on the shelves, which in turn causes frustration among our customers.

To address this issue, our team has worked diligently to redesign the BPV to make the assembly process more efficient, while also improving its manufacturability, performance, and overall reliability.

What's New for Version 2 redesigned the internal piston to eliminate the potential failure points we saw in our V1 Design.

Adjusted tension of the internal spring to better suit the operating environments we've seen after further testing and development. Updated the Design of the main body for a better CNC milling finish. Exchanged the internal brass piston from V1 for a lighter weight hard aluminum piston, resulting in better valve response.

Removed the inspection port which was primarily used for quality control, but it is Not required with the new Design. In testing of stock bypass valves, we saw repeated internal leakage at boost levels as low as 8psi in the FA20 and 19psi in the EJ variant.

As always the case with GrimmSpeed Products, we focus on form AND function, and these units are no exception. We aimed to create an extremely durable bypass valve that couldhold double the pressure of the stock unit, while still being a stylish part that compliments the other GrimmSpeed Parts under your hood. Material and Design We started the ground-up Design with the valve body and base for each popular Fitment

Both are CNC-machined out of billet 6061 Aluminum alloy for its strength and light-weight. They are then anodized in either a Black or Red finish to give them a brilliant appearance, provide corrosion resistance and match other GrimmSpeed offerings. compared to the stock cast unit on the EJ STI and plastic construction on both the 08-14 and 15-21 WRX platforms, GrimmSpeed Bypass Valves Not only stand out, but are guaranteed to stand the test of time.

For the internal components of the valve, we chose to utilize a machined brass piston for its anti-corrosion and low thermal expansion characteristics. Our piston seats onto an internal O-ring to create a perfect seal, eliminating boost leaks common in OEM and cheap aftermarket BPVs.

In order to make sure this could keep up with high power levels, we chose to use a massive 38mm diameter piston/sealing ring for the ability to dump pressure quickly. This is especially important on high boost applications to keep the turbo from sustaining damage and the BPV maintaining leak-free operation.

A precisely-tuned steel spring alleviates the need for any tuning or adjusting of the valve, with no engine tuning required to run the unit.

Buna-N O-rings were the next logical choice due to their resistance to degradation from fuel and oil exposure. In addition, all of our O-ring grooves utilize a single dovetail Design for superior retention. This guarantees the O-ring will Not fall out and has the perfect crush for sealing the body together. To top things off, we employ a swivel fitting on the valve to make for easy Installation and accommodate best-routing on custom setups.

A GrimmSpeed signature branding badge graces the top of each unit so that everyone will know you chose the Best valve in the biz. Both the 08-14 WRX/05-09 LGT and 04-21 STI (EJ) Fitment utilize the same valve but with different footprints for use across a broad range of vehicles including Legacys, Foresters and Bajas with the proper intercooler setup. The STI unit reuses the recirculating elbow from the factory BPV, ensuring precise alignment and a perfect fit.

All this makes for a total plug-and-play package.

Quick Specs

  • CNC-Machined 6061 Aluminum
  • Corrosion resistant anodized finish, available in both Red and Black
  • Oversized 38mm anodized aluminum piston for superior flow
  • Swivel air fitting to aid in Install and for accommodating custom setups
  • No tuning or adjustment required

Fitment:04-21 Subaru STI02-07 Subaru WRX06-08 Subaru Forester XT04-05 Subaru Forester XT (with STI-Style TMIC)04-06 Subaru Baja XT (with STI-Style TMIC)

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 19314308443

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 20 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
V
Verified Purchase
vaswds
Massapequa, US
★★★★★ 5
TPT is a wonderful Bible translation
I really enjoy The Passion Translation and have purchased many as gifts. The footnotes are very enlightening. Holy Spirit revelations were profound when reading this wonderful version of the New Testament.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 11, 2026
M
Verified Purchase
Margaret B Willingham Eye of t
Pawtucket, US
★★★★★ 5
Beautiful version of this translation
I love this translation of the bible. the pages in this version are a bit thicker than my last copy and so there is less shadowing of the backside of the page making it easier to read. The slightly larger print also makes it easier to read.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 22, 2025
S
Verified Purchase
S Wheeler
Alexandria, US
★★★★★ 5
Brings tears to my eyes, beautifully written❤️‍🔥
Format: Imitation Leather
Love TPT Translation! I have gifted these to friends and family, all my grandkids! Love to read it along with NLT or NKJV. The Father loves us passionately!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 18, 2025
S
Verified Purchase
S. Kirby
Grantham, US
★★★★★ 5
Easy to understand
This is a great modern version of the New Testament, Psalms, Proverbs and Song of Songs. After buying one for myself, I bought one for a friend. She and I both love using it for Bible study. I plan to buy the Old Testament books they have versions for as well. I include a photo of a portion of 1 Corinthians 13, so you can see how it compares to other versions. Also, at the beginning of each book, there is an at-a-glance section, about section and a couple more pages with info about the book and context. There are notes at the bottom of each page to show similar translations for the words or an explanation of what its context is.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 19, 2025
R
Verified Purchase
Radar
Bozeman, US
★★★★★ 5
The Passion Translation (TPT)
I really appreciate the translation of this Bible. After using only the KJV all my growing up years, I am learning so much from this Passion Translation as it has study references to refer to for more help in addition to the helpful verse Translation. It does NOT have the Old Testament included but Psalms, Proverbs, and Song of Solomon is included.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 4, 2025

recommand products