So is this aluminum or stainless steel???
 

Guys, I really need to know whether these pipes are aluminum or stainless steel because im going to get an IAT sensor welded on to it. I have a greddy kit that has a starion intercooler with basically the piping every one has. I guess its the JIMMY B or something like that. its the red pipes.

Put a magnet on it.... *im guessing steel.

but its painted would that still work?

yes.

Painted? Aluminum

magnets dont stick to some stainless steels...

bite it. if it dents, it's aluminum.

lol

Why would someone paint aluminum or stainless steel?

Like y8 said, most stainless steels are non magnetic, so the magnet is out. Take a file or something to the edge of it. If it comes of very easily its Al, if its tough its def. Stainless. You might still try the magnet, as it could be mild since its painted.
-Michael-

Well do the magnet first, then file. Its only 300s that aren't magnetic

Tapping works as well. Aluminum sounds hollow, stainless rings. Hell the weight alone should tell you what it's made out of.

Try to weld on it with a mig... if its sticks steel if it doesnt aluminum.

Wouldn't the tubing be magnetic if stainless cause of the cold working?

Magnets don't stick to megan manifolds. They're supposed to be shitty stainless.

I dont know what that looks like or if its cold worked.

ok update guys... a magnet stuck to it like glue and I painted it BLACK because im going for a black theme under my hood. Cops hassle you when its colorful under your hood here in the CARB state california

You could do wrinkle black, it'd come out looking OE.

ya i love wrinkle paint it looks beautiful. I plan on doing that once i pull the 1.6 motor out. Have everything in black ( i have a 1.8 motor in my backyard that sleeps next to my 140 lb rottweiler puppy) lol