GTM and Stillen SC Install Facts and Results Thread

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Originally Posted by tiller

sooo stillen or gtm supercharger?still havent really heard anything on this thread that pushes me either way(gtm or stillen),not many comments from anyone whos has installed a stillen charger at home,i plan to do it myself(mechanic) at home but really need to do my homework here cuz nobody seems to have installed a stillen at home,any help is much appreciated..thanks....

oh and if ur interested in a top speed family car buy toyota,just push the gas real hard and ur gone..sad

I won't comment on the end outcome because i don't have either kit on my personal vehicle so i can't tell you the day to day consequences (good or bad) of either kit, but i have worked on vehicles with both kits, so i will give you my impression.

The best way i can explain this is that the Stillen kit reminds me of a cheesy bolt on Honda Turbo "kit" You just kinda slap it on with some self tapping screws (course thread into composite plastic) and by molesting some factory brackets with a grinder. Not quite a complete solution in my eyes, it modifies a LOT of the car by cutting off tabs, bending coolant tubes (in the throttle body), and similar things to make the kit fit the car. You also have to extend several wires for the MAF sensors and one throttle body. Not a huge deal if you are good with wiring, but i don't like the fact that Stillen did not keep shielded wiring for the throttle body that has to be extended. (factory wiring is shielded all the way up to about an inch before the connector.)

The GTM kit is more in depth and would be more like converting a 300ZX NA --> TT with all factory parts. There is still a small level of factory components modified, but for the most part if the factory part didn't fit 100% perfect with the charger then they provide you with a new piece to take the place of it. GTM Does require you to extend 4 wires as well but its for the oil pressure gauge/switch, and its about 5" or so extension. Not quite as critical of a place as the MAFs and Throttle body.


In my opinion the best way to put it is Stillen made a kit that sort of fits the car, and expects you to cut your car up to fit their supercharger kit. GTM made more of a conversion that changes your car from NA to Supercharger trim, much like i would expect to purchase directly from the manufacturer if two engine options were offered.

I would recommend contacting both companies for copies of the installation manual, and take a look through them. This will give you a far better idea of what you are about to do to your car with either kit.