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Pontiac Forum: How can you increase horsepower?
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Old August 9th, 2017, 06:33 PM
jmev jmev is offline
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How can you increase horsepower?

I've read that the Toyota Matrix and Pontiac Vibe lack accelerating power and have found this to be the case with my 2003 Pontiac Vibe (1.8L engine). I don't know if my bad catalytic converter, which I don't plan on spending $800to fix, is part of the issue, but is there anything that can be done to up my power? I'm not too engine-smart, so please use small words (and small price tags, if at all possible). Thanks!
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Old August 10th, 2017, 09:29 AM
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melsg5 melsg5 is offline
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what do you mean by "bad", is it clogged or not functioning? If clogged it will kill your power and eventually damage the engine. If you dont want to replace it find someone who will insert a "test" pipe to replace it.
Other than that, if you dont know when it was last tuned, plugs, fuel filter, air filter, have it done.
There are no performance parts for that engine.
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1969 Corvette Coupe with 1970 LT-1 Short Block
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Old December 13th, 2017, 07:18 AM
Radioman Radioman is offline
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My 07 has plenty of power for a small engine.. Passing power is plenty as long as it downshifts..

Sounds like your cat is plugged... Check your intake air filter also.. Might be that simple..
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acceleration, power, speed

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