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This is probably a commonly asked question but im looking into getting more power out of my sr, if i go with a Brian Crower street package (cams, valves, valve springs) am i going to need a tune and if so what should i go with? I kinda want to tune it anyways but i dont really want to do a standalone ECU. Can u guys help me out?
 

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A popular tuning accessory is an Apexi S-AFC fuel computer that adjusts fuel/air ratio by modifying the air-flow meter/MAP sensor signal. The S-AFC features a user-definable, eight-point, adjustable fuel curve that can be set in 500 RPM increments.
 

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The Apexi S-AFC is priced around $450 new. You can get used units from Ebay for half the price of a new one. The unit connects between the wires from the MAF and the ECU; the splicing is done at the ECU harness connector. The unit sits in the driver's compartment where you can easily tune the engine.
 
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