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OK, so i cleaned my throttle body a while ago using carb cleaner and a tooth brush. I couldn't get it to stay running if i unhooked the intake from the plenum so i turned the car off and did it. So then i hooked it all back up a started the car up. it cranked over a few times then started up, the Idle was WAY off, it idles at about 1100 when warm. There was a few little pops and it was fine, and the power seemed alot better. Lately (after a few days) it seems like it's been getting lounder, until yesterday when it seems like i'm driving with strait pipes out into my engine bay. It's SO loud, but when i get under there, everything looks ok, but sounds horrible. It's backfireing and such now because of low backpressure ( i assume). WTF? What should i do? Will i need a new header or somehting? Is it loose? help...