It really sounds great...especially when you plug the MAF back in. So much louder and tough sounding at 4000 RPM's and above. Is there supposed to be a slight whistling sound as well?

 

The whistle is normal...got mine installed yesterday...took all of 15 minutes to do my self.

 

Yep.

 

Hummm, I didn't notice any whistling from mine. Maybe that frequency is blocked out due to my poor hearing. Lol !! Or, the stereo is too loud !!

 

Mine doesn't whistle. Yeah the sound is tremendous. I scared the crap out of some people last night in a tunnel with the Popcharger.

 

its more of a slight hiss then a whistle. all of them do it. very hard to hear unless your really listening for it.

 

What I like about the PopCharger and stock exhaust is until you jump on it, it's purfectly exotic. When you jump on it the sound is just amazing.

I think I'm going to keep stock pipe straighten out the path a little put in a aftermarket y-Pipe to get a couple horses. I love the stealthly sound. When you get it on, it sounds like you opened up and exhaust cutout or something.

 

anyone with a pop charger and nismo cat? how does that sound?

 

I put my pop charger on today...it, AAM test pipes and HKS hi-power Ti sounds amazing...

 

Got both here, just put the pop charger on today too. Took me a little bit longer trying to get those screws into the side of the heat shield... I have a K&N Typhoon, but I didn't figure on it not fitting with the crawford tower bar, so I got the popcharger and will sell the K&N soon...

Sounds great though. I'll try to record it, but I don't have a video camera. I'll just have to use my digital camera on the video setting...

 

So four different people installed pop chargers today?

 

It was a good day to do a little work on the Z. 74 degrees here in MD.

Plus, I had to...I'm heading back for more UTEC NA tuning next week. I wanted to slap my ngk iridium one step colder plugs in, but didn't have enough time.

 

The "whistle" can only be "made" when you aren't at WOT. Mostly 1/2 to 3/4.

 

the whistle only happens when the filter is brand spankin clean

 

Especially when you plug the MAF back in?? what does that mean?? you cranked it with the maf out?

 

lol...I thought the same thing

 

Yes it started w/o the MAF plugged in. Sputtered a bit so I killed it right away and all the lights lit up on the cluster. Checked, and plugged back in and then it fired right up no problems or lights.

 

At least you can change your sig now...

Here's a couple of my install

 

i installed mine as well but didnt even mess with the two screws on the heat shield. the shield seemed pretty secure without them. i drove about 100 miles today and checked it and everything seemed like it held up ok.

do u think i should still mess with the screws? I prob will but just wondering. BTW the sound is awsome

 

I connected the two screws in front of the heat sheild to the opening to the front bumper. I didn't bother with the screws/bolts that connect to the frame.