Leinninger.com

February 21st, 2020:
Fifth Generation Subaru Legacy GT Bypass Valve Upgrade

This write-up applies to 2010 – 2013 Legacy GT models with 2.5 turbocharged engine. A stock engine engine/tune is unlikely to benefit from changing you bypass valve.

Replacing the factory turbo Bypass Valve (aka blow-off valve or BOV) is far easier than I initially thought. Whether or not you should is hotly debated, but it’s really up to you. My custom tuned Cobb Stage II was leaking boost and this fixed it, but that may have been due to the age of the original more than the design. Here’s how you do it (since I couldn’t find any other overview):

Parts needed:
1.) New bypass valve. I went with the GFB Hybrid (T9233) because it allows me to use either hybrid or full recirculation easily.
2.) Spare plastic body fasteners. (You may break some during removal of the intake snorkel)
3.) Zip tie or small hose clamp (optional, see step 11)

Tools needed:
1.) 8mm socket or nut driver (snicker)
2.) 10mm (socket and ratchet)
3.) 12mm (socket and ratchet)
4.) Screwdriver or similar tool to pry fasteners and hoses
5.) Vice grips (recommended) or pliers

Steps:
1.) Remove the 2 plastic fasteners for the cool air intake snorkel, then lift it out.
2.) Remove the passenger side radiator fan by disconnecting the electrical connector in the bottom corner. Then remove the 2 10mm bolts on the top. Lift the radiator fan straight up to remove.
3.) You can now easily access the Bypass Valve from above:

Factory Bypass Valve


4.) Slip the vacuum line off of the Bypass Valve.
5.) Use an 8mm socket or nut driver to loosen the upper hose clamp on the Bypass Valve.
6.) Wiggle the upper Bypass Valve tube out of the hose while gently prying the hose with a screwdriver. There’s a lot more flex in the lower hose than you expect. It will allow you to pull the upper hose off of the Bypass Valve and pull it aside to access the lower hose clamp.
7.) Use your vice grips to lock the spring-style lower hose clamp open… or try to do the same with pliers. Wiggle the lower hose off of the factory Bypass Valve.
8.) Compare the orientation of the inlet and outlet to your factory Bypass Valve. Also ensure that the vacuum line is aligned. Most aftermarket Bypass Valves allow you to rotate the vacuum line as needed if you remove a few screws. Follow the manufacturer’s instructions. The GFB Hybrid (T9233) did not require any adjustment.
9.) Insert the new Bypass Valve into the lower hose and align it with the upper hose. Remove your vice grips from the lower spring-style lower hose clamp.
10.) Insert the new Bypass Valve into the upper hose. Tighten the 8mm hose clamp so that it is snug. No need to go gorilla on it.
11.) Slip the vacuum line onto the vacuum inlet on the new Bypass Valve. A zip tie or small hose clamp may be necessary to ensure a good seal if the outer diameter of the inlet is smaller than the stock Bypass Valve.
12.) Install the passenger-side radiator fan: slide it straight down into place. Reinstall the 2 10mm bolts on the top. Re-connect the electrical connector on the lower corner of the fan.
13.) Re-install the intake snorkel and secure it with 2 plastic fasteners.
14.) If your Bypass Valve spring requires tuning, follow the instructions provided by the manufacturer. My throttle response benefited from a slightly tigher spring. It held boost without any adjustment, though.

Visibility Was Better With Fan Removed

Here’s how the hybrid sounds (not too loud) with a full Invidia exhaust:

2011 Subaru Legacy GT w/ GFB Bypass Valve Interior, Stationary
2011 Subaru Legacy GT w/ GFB Bypass Valve Exterior Rear, Stationary
2011 Subaru Legacy GT w/ GFB Bypass Valve Exterior Front, Stationary

336 responses to “Fifth Generation Subaru Legacy GT Bypass Valve Upgrade”

  1. Follow the purple signs for long-pride airport parking chicago o’hare.
    A free shuttle service runs around the clock between the parking lot and the terminal.

  2. for travelers who care about ecological environment, long-off-site parking fort lauderdale airport is more comfortable.

    To make any changes The support page is available for planned changes.

  3. in order to get which long-term parking at terminal is more profitable, use the long-phl long term parking rates.

    Compare our weekly bills for parking at terminal and make sure that you save!

  4. any option of parking has your advantages, but if you want order
    inexpensive long term parking seattle tacoma airport at
    reasonable daily rates, choose parking outside the abroad airport.

  5. Jakość połączenia jest doskonała, a routing jest dobrze skonfigurowany!
    techniczne wsparcie szybko reaguje, https://www.24ikp.pl/info/ras/20240819u_analiza/art.php potrzebne zmiany
    są wprowadzane natychmiast.

  6. Uruchomienie Call Center od I Do wykonywane w https://www.ostrowmaz24.pl/art/49160/omnikanalowy-system-integracja-komunikacji-z-klientami 1 zwykły dzień.
    Daj klientom świetne urządzenie skontaktuj się z
    odpowiednim pracownikiem lub działem.

  7. in the future this may change with the spread of https://vocal.media/authors/john-davies-vx620o7r for
    further expansion of linguistic diversity. on portal, English is used
    in role of main language.

  8. Chatbot says:

    Black Hat SEO vous initie à l’intelligence artificielle
    et à la conversation IA avec ChatGPT. Une plate-forme innovante
    et interactive qui vous permet de comprendre
    le futur de l’IA.

  9. Win 7,777 gold coins for luck and ten free advantages at
    the http://cruzgocz351.iamarrows.com/jonbetbrapp.

    Our reviewers rated the app for minimal delays and excellent
    navigation, which simplifies to search for games.

  10. Network metrics include hashing speed online, wallet addresses (current
    and inactive), network applications, token/coin issuance rate (inflation/deflation), network fees, https://sundogmeme.io/ and transactions.

  11. our company do not cover every chain, “but”: at the time the writing of
    the article, we tracked 70 of the largest https://wafflestoken.com/ chains, which means that our team list more than 97% of all
    tokens.

  12. Оригинальные запчасти для автомобилей ВАЗ
    запчасти автоваз http://www.zapchasti-vaz1.ru .

  13. Investing is associated with risk, even with the risk of losses.
    because of high-level risk to investors necessary consider https://kamala-harris.io/ as
    a purely speculative instrument.

  14. Friedgen, Gilbert; Kerner, Marc-Fabian; Walters, Steffen; Weibelzahl, Martin https://htx-wallet.io/ (March 9, 2021).

  15. to avoid damage to your hardware and servers, use a rolling rack mount cabinet, we
    strongly advise not to move a fully loaded
    server cabinet.

  16. this means that if you sell https://jaxxwallet-liberty.com/ with benefit,
    you need to pay fees on capital gains. trx is the platform’s own cryptocurrency that supports the proof-of-stake consensus algorithm.

  17. Matteo D’Agnolo. “absolutely everything that you it is necessary know about the Bitcoin https://trojansolana.app/.” The company agreed to pay compensation to the sec in amount 30 million dollars and stop selling your services
    in this country.

  18. The disadvantages of cryptocurrencies include their price volatility,
    high energy consumption for use, and the use of https://waffle-swap.io/ in criminal activities.

  19. if this is so, then they may to be subject to the Securities Act.https://huobi-wallet.io/
    Some CTPs claim, that they will be registered companies, however similar is not all as
    being registered with the securities regulatory authority.

  20. the people might like to expand. an ncr silver team member will https://andreevka.ucoz.ua/forum/2-8797-1 contact you.

  21. here are the main common risks associated with
    digital https://bonksolana.io/
    assets. Read how they are commit, and get 10 tips on how to protect your family and own money.

  22. Usually, https://magameme.io/ is stored in crypto
    wallets, what represent a physical device or virtual-software
    used for secure storage of private keys to our cryptocurrencies.

  23. these devices besides request that users remember and carefully protect your password from https://lendcoin.io/.

  24. Энергоэффективные каркасные дома: преимущества и технологии
    дом каркасный https://karkasnye-doma-spb1.ru .

  25. Set aside hours for bed in specific schedule, get https://www.metal-archives.com/users/hazisumon347 and enjoy the that nearby with children a real
    partner.

  26. – is one of the important stages in idea of houses, installation cottages, https://prophecynewswatch.com/article.cfm?recent_news_id=7223, design and planning new spaces.
    Sketching is important before visualizing buildings.

  27. так что я ощущала себя подстрахованным и знала, https://invest-company.net/vejping-v-ukraine-innovacii-i-trendy-v-2024-godu.html как объяснять свои убеждения» (Оливия).

  28. Kugoo V3 Pro: новейшие технологии в мире электровелосипедов
    kugoo kirin v3 pro 60v 21ah http://kugoo-v3-pro.ru/ .

  29. in the end, everyone does not have a Rental Virtual Number are path
    to uninterrupted Internet or they strive absolutely rely on cloud phone service.

  30. Call (the amount corresponding to the current open https://berhamdesigns.com/ bet or raise).
    The designation “nl” means, what in this game, a betting system is
    used freely, where users can bet all of their chips at
    any time.

  31. players can use only two of four closed cards in combination with
    common cards to collect their best combination of 5
    cards in https://wtpglobalau.com/.

  32. Натомість боти функціонують з
    алгоритмічною точністю та приймають торгові рішення, копітрейдинг аналіз ринкових
    даних, і вчинення.

  33. Перед получением карт два
    соперника, сидящие слева от
    баттона, https://rupokerdomonline.ru/ вносят в банк ставки – наибольший и
    малый блайнды.

  34. We are proud to have already played tesla, thousands of USDT, eth, https://australiapokerwtpglobal.com/
    btc and millions in chp!

  35. leider hat das nine bonus del casinò online die bonus-und umsatzbedingungen ordentlich angezogen,
    weswegen du nach unserem erhalt des reward keine
    zeit “” nichts abbekommen solltest.

  36. Cap – game with cap is a game, where there is a limit on six chips,
    which easily bet in post-flop https://chabadasia.com/.

  37. Право доступу: ви можете на швидкий доступ до своїм персональних даних, https://pro.kharkiv.ua/novyny/ які нам відомі.

  38. existuje několik metod – od neodnímatelných
    protéz, jinými slovy korunky a můstkové protézy, které pacient pevně drží v ústech, https://zubni-lekar-stodulky.store/zachovna-stomatologie po výměně senzoru.

  39. Конечно. Большинство демоверсий на casino guru
    относятся к категории геймов для 1 вин зеркало рабочее на сегодня мобильных гаджетов.

  40. предложения для винды и mac имеют одинаковые
    сайт и аппаратные https://playpropokerdomkz.com/ требования.
    Дата. Подпись».

  41. inmediatamente el crupier mostrará el flop:
    3 tarjetas abiertas en clínica https://alpagassologne.com/ mesa.

    Encuentra tal y muchos otros batallas en el casino en vivo betsson chile.

  42. super hold’em – similar – absolutely new and high variety of online https://sweechkish.com/ from
    pokerbaazi, where you can play exclusively in our application.

  43. usted suficiente necesita cancelar el BUY-in con respecto
    a valor 1 Dólar para participar nosotros torneos https://ggpokerproag.com/
    con privados premios de 125 a 500 dólares.

  44. recursos adicionais, tipo deck de quatro cores e três tipos diferentes de mesa, https://playredstarpokerbrasilia.com/ eles
    ajudarão você concentre-se em processo durante longas horas de
    trabalho.

  45. The unrivaled authority of the Las Vegas poker scene continues to grow.

    among Vegas online https://wptglobalaustraliapro.com/ rooms there are such leaders in sphere
    of luxury as aria, bellagio, venetian, caesars Palace, wynn, mgm Grand and similar.

  46. aquí literalmente tenemos en mente de todos.https://argentinaggpoker.com/ empezar con muy económico apuestas, abierto online, o jugar por un centavo con online jugadores.

  47. en los modos similares, los límites son iguales como en Hold’em, y el
    rake en ggpoker está regulado https://argentinaggpokerplus.com/
    de la misma manera.

  48. Но также имеются и альтернативные, https://kingrupokerplay.ru/ самое меньшее захватывающие
    виды карточной игры. их печатают два участника.

Leave a Reply

Your email address will not be published. Required fields are marked *

Devtroit