Option B for Dual Pass IC
35 ZZ-OPTBK $95.99
Comes as a complete kit with everything needed to install on your car minus the bracket, because the bracket only fits the Cobalt. This kit will make it easier to bleed the air from your intercooler system. The point is that the small line will always have coolant flowing out of it and feeding the Option B's overflow bottle, and when air comes out of the line it stays in the top of the bottle and air-free coolant drains out from the bottom of the bottle back to the IC pump and heat exchanger(s).
GM Instructions for Dual Pass and Option B
Option B Bracket (for Cobalt) sold separately.
Comes as a complete kit with everything needed to install on your car minus the bracket, because the bracket only fits the Cobalt. This kit will make it easier to bleed the air from your intercooler system. The point is that the small line will always have coolant flowing out of it and feeding the Option B's overflow bottle, and when air comes out of the line it stays in the top of the bottle and air-free coolant drains out from the bottom of the bottle back to the IC pump and heat exchanger(s).
GM Instructions for Dual Pass and Option B
Option B Bracket (for Cobalt) sold separately.
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Ecotec
