I think all of the, "this should do this" and "i think this will give you this" is retarded. If you haven't seen a dyno from a KA with whatever mod you're talkin about then don't post what you think it'll do.
i.e.
now, I've never seen a KA get less than 10 hp from a 3" cat-back, and it's usually closer to 15.
Here's some food for thought, PDM dyno'd a KA24DE with intake, header, pulley, cam with specs, Intake 221 duration @.050” .379 lift; (272 advertised duration), .380 lift; Exhaust 231 duration @ .050" lift, (278 advertised duration), .390 lift. and tuning. It doesn't say exhaust, but I've never known anyone to have a header without exhaust but maybe it doesn't, whatever. Anyway it dyno'd 163.1 hp and 161.4 tq. By lookin at that you can see how it could become difficult very quickly to reach 200 whp. If you want it anyone can do it but it's not going to be quick and easy like it is with some other motors. People should also remember that the KA's strong suite is torque. It may not make dazzling hp numbers but it has torque in spades. A 2.0L s2000 may have 240hp, but is only has like 140 somethin torque. The KA with mods up to 160hp, as just seen still has about an equall amount of torque. That's what I want in an engine. Anywho that's what I think.
Also, no-body should talk about 2.5" exhausts. I used to think that a 3" could be too big, blah blah, but All that is retardedness that got passed down through generations. There's a mag on the shelf right now, (srry, can't remember wich) they replaced the secondaries on a
honda B16 with a 3" dump pipe, exiting the car. No cat-back, nothin. They gained like 14 hp, and more importantly like 13 torque. That showed me that small, big, whatever engine. Use the biggest exhaust your app will allow.