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GM Stage 1 Sensors

Replace your factory MAP sensors that blow out when you turn up your boost with these GM 3 bar map sensors in just a few minutes!

PCM file update required, See "Option 2" on our ZZP LNF 1.0 PCM page.

LNF only!


  • (2) GM 3.3 bar map sensors (good to 33psi)
  • (2) O-rings
  • (2) GM Plug and Play wire harnesses

ECU Programming

In HP Tuners, set the MAP sensor linear to 65.89, MAP sensor offset to -6.35, Boost sensor linear to 65.89, and Boost sensor offset to -6.35.

These are an intended upgrade for the 2.0 turbo Cobalt SS, HHR SS, Sky Redline, and Solstice GXP. The 2.0 LHU Regal does not need these as they come stock with 4 bar MAP sensors. 

Customer Reviews
4.8 Based on 61 Reviews
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Alfred Y.
United States United States
Stage 1 Sensors & LNF PCM tune - 2010 HHR SS - 5 spd.

Got these with my LNF Tune on Black Friday. If your only going to do 1 mod to your LNF. Get these and a Tune... Boom Done!

David C.
United States United States
gms1 sensors

Its great!!! Definitely need these with a tune!!! I mean come on who doesn't want more boost!!! Lol

Simon Y.
United States United States
Great support from staff

Ordered and recieved within 3 days unfortunately one sensor came broke but zzp made it very easy and fast to get a replacement sent out the same day, much appreciated

patricia f.
United States United States

fast delivery and awesome customer service. next part i need i will be buying from ZZ. Thank you

Chris L.
United States United States
I'm so so right now

You guys were out of stock for like months. Had to buy some place else which ******. But I ended up getting yours because the car was running weird thought it was that 3 bar. So when I got them in put them on and car was Worse. Found out one of the metal points in the connector was pushed all the way in. Had to use the other connectors now the car is fine..