1.4T Upgraded Bypass Valve Spring

One of the best parts of owning a turbo car are the turbo noises, and who doesn’t want more of those? This is the perfect quick upgrade for your 1.4L Sonic or Cruze. Simply swap this upgraded spring in for the stock bypass valve spring and you’re good to go. The upgraded spring will get you more pronounced BPV/BOV noise along with reduced off throttle whistle. Note: this does not provide any performance benefit.

Fits: LUV/LUH/LUJ stock turbo and ZZP Big Wheel turbos. Cannot guarantee compatibility with competitor's turbos.

Customer Reviews

5.0 Based on 6 Reviews

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01/21/2021

Derek O.

United States

Very good

Shipped and arrived in a timely fashion, easy to install, and sounds much better than the stock spring

1.4T Upgraded Bypass Valve Spring

12/30/2020

Luis

United States

definitely a cool buy

i recommend having a buddy with you so they can help you when if comes to put the bolts back on. really fun thing i did with my dad so if you don't know much about cars but would like to have some bonding time with your pops do this mod. the sound is a little better then before stock but if you have the radio on then you won't hear it anymore

1.4T Upgraded Bypass Valve Spring

12/27/2020

Luis

United States

MY 1.4 Sound GREAT

I recommend that you have a buddy with you when you will do your spring swap. It's not a hard job if you have the right tools but in my case i needed someone to hold the bypass down while i screw everything back in. went for a drive and it sounds so much cooler as before you couldn't hear it and just normal chat in car would drown out the sound. i have this paired with my AEM intake. so its a win win. in the picture you'll see the stock spring. zzp spring is gold.