Not Ranked
First, all sidepipe brands are different. CR are the worst in my opinion, SPF are not too damn bad. Second, the muffler is only a small part of the exhaust problem. Most cobra headers have sharp bends in the primary pipes, primary tube length is not optimized for the engine as it should, but for the length and bends being determined by where the motor sits and so the sidepipes look "right" Also, one size fits all pipe diameters on the headers. There's more to it than just the baffled section of the sidepipe. Unless you are only interested in how the motor "sounds"
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In a fit of 16 year old genius, I looked down through the carb while cranking it to see if fuel was flowing, and it was. Flowing straight up in a vapor cloud, around my head, on fire.
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