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It looks like Illinois doesn't care about vehicles older than '96. So, since replacing the Cat with a section of pipe should be quick and easy to do, I'll get right on that. I can't find the straight pipe anymore, though. I swear I saw on, eBay, magnaflow cat replacements AND straight pipe with the same flanges. Can't find them anymore. I can probably just take the measurements from here - http://tinyurl.com/c8gh9e - and have an exhaust shop make it up, can't I? Do you know where I might find a part "ready to go"?
According to this page - http://tinyurl.com/cfxnh9 - the Cat isn't really affecting top hp unless its really low flow. Should I consider just getting a high-quality low-flow Cat?
When I was ~18, I remember catching a 164 on the highway with a modified exhaust running dual pipes. Since the exhaust is coming from a Y, it seems smart to just run two pipes all the way, but I'm not ready for that cost.
What does "milling the head" entail, and what's the cost run? Is that where they shave the mating surface so that the height is reduced and the compression increased? In your opinion, what are some of the easiest (ie, non-invasive) methods for increasing power?
I plan to replace ALL the vacuum hoses shortly and would like to use Silicone hoses so I won't ever have to do it again. If there are any minor leaks, this could affect the power output of the engine without noticeably affecting the running/idling performance, couldn't it? My smog/air pump is "noisy" but working - would replacing this do anything noticeable to the power?
What about the Seafoam/Chinese Water Torture? Snake oil, or real improvement?
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