GM has discontinued the OEM intercooler, so if you need a replacement, we can help. The MPx intercoolers wont crack like the factory ones, and have increased road clearance to prevent damage from curbs, inclines, etc. This intercooler fits perfectly on the Cobalt SS. This intercooler can also fit the HHR SS, however, metal bracing must be cut out as there is sheetmetal directly behind the endtanks that prevents installation on the HHR SS.

• Direct fit bolt on with no welding, cutting, or removal of factory crash bar.
  
• Drastically improved cooling over the thin OEM intercooler with plastic end tanks.
• Larger core with cast aluminum end tanks to dissipate heat and look great!
• Mounts directly to the crash bar with factory hardware.
• Larger intercooler design with MORE ground clearance than factory and other intercoolers on the market. No more worrying about damaging your intercooler with ramps, parking stops, or curbs!
  

  The Cobalt SS Turbo has a small turbo, designed for an efficient 13-15 psi of boost. Once the boost in increased, the turbo begins to heat the compressed air, increasing the compressed air temperature. With higher incoming air temperatures, the ECU retards the timing, leading to diminished power.

  In order to lower the incoming air temperature, a better intercooler is needed to absorb and dissipate the heat from the compressed air.

  The MPx intercooler, especially at boost pressures higher than 20 psi, will help you REGAIN power lost due to the stock intercooler not dissipating heat quickly enough!

  Ease of Installation
  The MPx Intercooler is designed to replace the OEM intercooler with no cutting, welding, or removing of the factory crash bar.
  (mounting bracket spacers may be required for installation on HHR models, not included)

  Design of MPx Intercooler

  • The MPx Intercooler uses a bar and plate core for maximum flow and heat absorption and dissipation.
  • The MPx Intercooler uses cast end tanks for maximum flow and strength. With fewer welds, you have greater strength and less chances of leakage!
  • Mounting brackets are made from quarter inch thick aluminum for incredible strength and rigidity.
  • The photo to the left shows the difference between the OEM intercooler and the MPx intercooler.

   

  Measurements of OEM Core vs. MPx Core:

  OEM - 28.0" Length X 3.1" Depth X 6.25" Height
  MPx - 30.0" Length X 3.5" Depth X 7.0" Height

  Unlike many aftermarket intercoolers for the Cobalt SS Turbo, the MPx intercooler has plenty of ground clearance! Intercoolers that hang low may lead to damage from curbs, inclines, etc. Check out the photos showing the ground clearance of the factory intercooler and the MPx intercooler.

  NOTE: we have had customers install this on the HHR SS, however, cutting of a bracing is needed behind the intercooler end tanks. We have not done this on our own, we are just passing this information along that customers have given us.

  Review from RossGo on Cobaltss.net:
  This Intercooler is PERFECT for what I wanted. In my opinion, it is perfectly matched for stock turbo with upped boost. I felt absolutely no change in spool time, and saw no PSI drop in boost. In order to properly test, I pulled the bumper and was completely prepped for removal of stock, then did a pull. Came home, swapped, and did the same pull, same road, same temperature outside. The temp difference was 18 degrees!!!! With an outside temp of 85 degrees, and at full running temp, I saw a high IAT2 of 98 degrees from a 3rd gear pull 80-140. On stock IC, I saw a high IAT2 of 116 degrees from only a 80-110 pull.

  That was all on a hot week. Now that I have had it for a longer period, I have seen even better numbers. Here in KY, humidity is killer so keeping low IAT2s is vital for boosting. The other night, I had the privilege of being on a highway alone, and was able to ride out EVERY gear. After letting off at roughly 170, my IAT2 was a mere 12 degrees above ambient(48 degrees)!

  Earlier in the same day (60 degrees), I went on a 100 mile trip, and my IAT2 was a mere 2 degrees above IAT1.

  Overall, I can't compliment this intercooler enough. I have only seen IAT2s over 100 once, and it was on a 96 degree day, high humidity. I have watched it for weeks at every sort of speed in a plethora of temperatures, and my car is almost always within 5 degrees of ambient, and usually under 10 degrees of difference under harsh driving conditions. My stock IC almost always was 25+ degrees above ambient, and bogged hard core at high temps and humidity. A++++ rating. For a constantly overlooked or poorly engineered mod, I think that this IC was one of my best investments for my car, and I couldn't be more satisfied with the quality MPx has provided, not only for this IC, but also for the exhaust, valve cover, catch can, and spoiler I have got from them.