How can I get 50-100 more hp out of a 2007 Subaru Impreza 2.5i?

Don't confuse this question with: How can I get a car with 50-100 more hp than a 2007 Subaru Impreza 2.5i? The answer is not: Buy a WRX. I am aware that the WRX is faster. I can also look up how much they cost myself and compare it to the cost of tuning an Impreza 2.5i... Read More

  • Anything over 40hp increase will require a built short block and a turbo kit. WRX's TD04 should get you there. Probably run you about $6000 for everything if you do all the work, if not add another 3000 for labor. Is buying a WRX still not the answer? Because it will probably be cheaper. I guess if the world depended... Read More
  • A larger turbo and an inter-cooler should do the trick. Header, cam and intake will also help you out. Programmer after you do everything else (or re-map on the computer) Reference:20+ year mechanic
  • cat-back exhuast, cold air intake, and a performance chip is your cheapest best route. check out www.voloperformance.com for your chip.
  • Anything short of a turbo wont get you that.
  • Tie 50 horses to the front of your car.

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