Hi, I have a 2003 Jetta and would like to increase the horsepower just a bit. Nothing to dramatic10 horses would do the trick. I was thinking of getting a KN cold air intake system. Could someone please tell me what the pros and cons of doing this would be? It says they guarantee a power increase. Also, about how much would it cost to have one installed? I‘ll vote best answer :)Also, what are some other ways I could increase horsepower a bit.
It is fairly easy to do, I istalled one on my pickup truck. Youll need a screwdriver or a nut driver, and wrenches. First youll be removing the cars stock intake system. Most KN kits have you remove the stock airbox (where the air filter is located.) First find your intake tube. It will be a large plastic tube connected to the intake manifold with hose clamps. it is in the front of the engine compartment, and mist likely connected on top of or on the side of the engine. Undo the hose clamps there and the ones connected to the air box. Also between the tube and the airbox there will be a mass airflow sensor. It is usually attached to the airbox and the intake tube is clamped to it with hose clamps. you will see wires connected to it . Save this piece as it will be re installed (its 200 to 300 bucks for a new one.) Look at the directions with your kit. If you do have to remove the airbox its usually just a couple of bolts. Also if your kit has you remove it they supply a new one for you KN filter. There is a rubber gasket that youll have to put on this new piece. They also supply a new intake tube and hose clamps. Attach the mass airflow sensor and new tube. There is also another hollow round piece that attaches on the inside of the airbox. Finally, attach the new round filter over this piece. It should take only an hour or two max. Look at your instructions for details specific to youre car, as I have never dealt with a mazda or any foreign car for that matter.
is your jetta turbo? you wouldn't be able to feel any difference at all with 10hp KN cold air prob. only give you 38hp good for highway driving.long/continuous bad for city.it's just like or possibly worst than short-ram intake b/c the air takes long to get into the engine by the time it gets there it'll be HOT air already.plus you run the risk of running over a deep puddle of water and sucking up water will destroy your RODs incrase horsepower (intake, headers, exhaust) the combo will create about 1015hp if your car is turbo try to up the turbo boost or getting a front mount intercooler, or a hi-flow exhaust
