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I've never driven an Sr with a gt2871r. Are they noticeably laggy? Did a few pulls with it. It seemed a LA little sluggish. Not sputtering. More like it needs a proper tune. The am wide band pegged out. Which I was looking for 12:1 AF at wot and it far surpassed it. Letting out a decent back fire slowing for a light. He says it's just the original ecu no tune. Any insight or is just something that can be handled with a decent tuner.
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