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Posted by idt512, Aug 16, 2004
Bolt-on Tech - 4G63 intake, exhaust, intake manifold, ignition, fuel system, cooling, etc.
Resonator - Basically its just a muffler before the muffler, it's straight through design packed with fiberglass or the sort to absorb some sound. Some people argue whether they really help or not
Pre-silencer - Don't think ive heard of PRE-silencer but i have heard of a silencer, which is basically something you can put on your muffler to help tone sound down a little more at the cost of hurting flow of course.
I really don't know how loud your exhaust is but it's never really going to be that quiet simply because its a 3" exhaust.
Hope that helps
I have a BR 3" cat back, welded a 3" resonator from Extreme motorsports. I'm guessing that it reduced the sound by around 5db. For me it's worth it, since I drive it 50 miles everyday to work.
That's the worst possible style you can use. They flow as much as a 2.25" pipe.
You want a perforated core, not louvered.