2003 Cadillac CTS 3.6l cold air intake

Asked by Jul 04, 2017 at 06:53 PM

Question type: Car Customization

I have a 2003 Cadillac CTS. I want to put a cold air intake
in her but everywhere I've looked no one makes one for
my 3.6liter v6. Is there anywhere that sells a lot or how
can I build one? Please help

2 Answers


I'm not trying to be harsh. I'm just telling the truth. Why do you want to do this? The CAI will do nothing better than the factory setup. A CAI is not what most think. CAIs take in air from in front of the radiator and channel it to the throttle body. CAIs are used in performance setups where intake temperature has an immediate quantifiable impact. There's a reason you're having trouble finding a manufacturer that sells them for your car... it's a waste. CTS-V on the other hand, not so much. The only thing you'll get from a "CAI" is the intake growl, and you'll only get that if you place the filter closer to the throttle body. Spectre and other brands make an accordion intake duct for about $20-$30 that hooks up to the cone filter and the other end placed at your desire. Very easy to do. For $40 you can have a nonsensical looking intake that only gives you a a deeper growl when accelerating.


Please do not listen to nissanisterrible, do more research. I've done a good amount of research in the CADILLAC FORUMS, and apparently adding a Cold Air Intake to the Cadillac CTS 2003 does in fact improve its idle and low end performance. I'm not saying your CTS will all of a sudden be an asphalt eating mustang smashing beast.... what i am saying is the 2003 CTS has some idle issues that can be corrected with a CAI.. BTW, I think you may have a 3.2liter. I also have a 2003 CTS and its a 3.2. I don't think they made a 3.2 and also a 3.6

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