good heat wrap can be expensive, you can tell the difference straight away between the two. expensive wraps have tighter weaves and last longer, the cheaper ones last longer if you spray them with heat spray. themo-tec and dei are both good. not cheap. you need the steel ties to hold it on. when putting on the heat wrap, dampen it a bit, helps wrapping the pipes. it will smoke when you start up but dont worry. you will also get a strand smell for the first few times you drive but thats just it curing. goodluck