NW-SAV
Ex Member
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First off - Hello everyone - this is an awsome site, I have had my S40 for about 3months and this site was one of the deciding factors in buying it. I do have question, I have a 07, it has a dyna muffler, side mounted UNI filter, 152.5 main, 55 pilot and about 1/2 white spacer. IT IS MUCH FASTER NOW, but when I roll the throttle wide open, it hesitates for a second and than kinda surges. It does not do it when you slowly roll the throttle open, just when you nail it. I rejetted when I put the new filter on and that is when the this started, I checked the jets and they do not appear to be block or dirty. thnks
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