OK new to this cobra and the irs . Basically what can all the stock stuff handle. engine, trans, rear diff, axles etc . I know everyone says do a irs brace or new frpp diff cover but at what hp do i need to do this and how much hp will each hold and can they be used together for extra help and what about the stock trans and engine everything i hear is 1000hp on enginge as for the internals and not heard anything on trans . thanks .