44 reviews

GM Stage 1 Sensors

SKU: ZZ-GMST1S

$114.99 Sale price

Regular price $114.99

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!

Includes:

  • (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.

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Ecotec
Kappa

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!

Includes:

  • (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.

Customer Reviews
4.9 Based on 44 Reviews
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KF
02/15/2020
Kurt F.
United States United States
A summary of zzp map sensors

I do thoroughly enjoy the added power given from the stage 1 map sensors and a simple tune, although functionality wise there were complications. The lower charge pipe used small screws that were well under sized for the size of the bolt hole on the lower sensor. This led to me having to modify the pipe just to keep the sensor in place. Otherwise I do thoroughly enjoy your products, keep em comin

TL
02/09/2020
TIMOTHY L.
United States United States
Good price and fast shipping

Good price and no problem with product. Always reliable zzp

EA
02/08/2020
eric a.
United States United States
GMS1

Great customer service had a little issue and they re solved it very fast. Glad I own an lnf

AT
02/04/2020
angel t.
United States United States
Great for 2010 HHR SS Auto

Great quality product. The plug and play harness makes things a breeze. The only issue I had was with the bottom sensor as there is'nt hardly any room to work with on the autos or hhrs in general. You practically have to remove the radiator to get to it. This will make plenty of room and I was also able to cut part of the radiator fan to move the sensor 180° so that it wouldn't bind with the AC compressor.

angel terriquez verified customer review of GM Stage 1 Sensors
B
12/25/2019
Ben.G
Canada Canada
Not quite perfect

Sensors ended up working great, no issues or codes with the canned tune I got from ZZP. Install was easy, but unlike other ZZP products, I thought this would be perfect fit plug and play. I ended up having to make minor adjustments like filing down the side of the sensor for it to sit flush on the OEM lower charge pipe of my cobalt. The upper (3 prong) connector wouldn't lock when plugged into the top of the manifold. Had to use electrical tape it to ensure it wouldn't pop out when driving. Finally, you will also need a washer to install the lower sensor onto an OEM pipe because the hole on the sensor is too large for the stock fastener.

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