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SPI Performance (2000-2004) The place to chat about any 2.0L Split Port Injection engine performance, tuning and exhaust related upgrades.

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Old 09-30-2012, 11:56 AM   #1
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Easy horsepower upgrades

What do you think the quickest way to get more horsepower with your spi is?
Easiest, cheapest, quickest, and most convenient way is?

No turbo or nitrous lets keep this all motor


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Old 10-13-2012, 10:22 PM   #2
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upgrading spi

Looks like nobody does it I just picked up a 01 lx with the spi and man its horribly slow compared to my old 02 zx3 with the zetec but totally motor swapping
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Old 10-13-2012, 10:34 PM   #3
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Intake, exhaust, header, tune. Should net you some good driveability. I say customize a svt header with an spi flange, and modify it to have an egr port. Then cat back 2.5" and a intake. Close it off with a tune, car will be much different, but not overly powerful.

If you have no emissions, add an ORP, and plug the egr.

This should net you about 25 horsepower.

12-14 HP from Svt header
2-4 HP on cat back
1-2 HP on flexpipe
2-3 HP on ORP
4-5 HP from intake.
Tune ties everything together, helps everything run up to par and squeeze more power out of your engine

Add some stiff suspension components, lower it, bigger sways, sticky tires, and enjoy.

If you want power, won't be easy..

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