Just purchased a used 2003 G35 Coupe 6MT. Before I bought it I took it to the Nissan dealer to have them give it a "once-over." Everything looked good but the mechanic did mention that it has an aftermarket exhaust and intake on it. The intake looks stock so I'm not sure what kind it is, and I am positive I have an aftermarket exhaust but I have no clue which one I have. It says nothing on the exhaust itself except "NIssan" which puzzles me. I have previously owned a G35Coupe and noticed the deeper exhaust on my first test drive and I have also compared the sound with my buddies stock Coupe.

Any ideas?

Could just be the intake. Under WOT it'll add a nice growl.

Post up some pictures.

Pictures of the intake/exhaust would help us identify them...

The only intake that looks stock is the Stillen airbox, but it says Stillen...

Also he could have a drop in K&N filter.

the exhaust, I'll have to post pics when I get home.

Hey I have this rash on my left nip. Any idea what it is?

Ringworm.

NEXT!

Just LOOK at it... Compare it to your friend's coupe and if it looks different then there you go.. Stock exhaust looks very different from aftermarket except maybe Nismo.