adding more hp in a 03 pontiac Grand prix se 3.1 liters

Asked by Levi Jul 21, 2014 at 03:10 PM about the 2003 Pontiac Grand Prix SE

Question type: General

I own a pontiac Grand prix se I was wondering if u can add more horsepower to it

2 Answers
18,685

munron answered 10 years ago

Sell it and buy a GTP. There are lots of nice ones around. I think you'll find performance options for a 3.1 are few and far between and the results are apt to be disappointing.

Mark helpful
10,815

Norm answered 10 years ago

Agree with munron. You can improve the breathing on the 3.1 with a performance exhaust system and cold air induction. The two jobs will run you close to a grand however, and if you're lucky you'll see about 20 HP gain and a big drop in gas mileage for your efforts. Stay way from the Computer Chip swap, they won't do much, if anything.

Mark helpful

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