???

How would removing the mufflers effect the level of CO emissions?

The video sounds really good BTW.

I would think that it won't have any impact. Mufflers are strictly for sound suppression. As far as emissions control goes, that's what the catalytic converters are for. The exhaust gases have already been 'scrubbed' by the time they get down to the mufflers.

I tried uploading my original vid to youtube, photobucket, myspace, and some other forum and couldn't get audio because of the rights.

It was hot but can't make an accurate calculation as the street is burning hot as well.

Negative sir, don't have any CO smell....i think that comes along when changing the catalytic converters.

Highly doubt it will to much damage. As someone mentioned that the pipes point upwards, i noticed that there is an aluminum shield (silver thing in vid) that takes the heat from the pipes....not saying its OK as i think that shield protects the gas tank from heat but it should be fine for a week or so before i get some tips customized.


Thanks on the feedback, makes me feel that my Z sounds possessed now....especially when downshifting :tup:

Have you noticed a drop in fuel economy or other undesirable outcome from the reduced backpressure.

With some new pipes, mounts and tips, this seems to be a cheap mod.

CO is completely odorless, and deadly. I don't recommend you go sniffing your exhaust. :p And Semtex is correct, the muffler has nothing to do with emissions.

Did nothing for me....

Just remember I muffler deleted my WRX weeks after I bought it and I remember it sounding like complete crap.. But it was fun being loud for a few days.

Fuel economy has been affected but i blame it on myself since i've been accelerating more than usual just to hear the exhaust :icon17:

I plan on getting this cheap set-up done by mid next week. In my meantime i'll wait for a bigger variety in exhausts.

That doesn't sound bad at all really.

Took mine off today after reading this post. Its sounds pretty good but is a little loud for me, only took 15 minutes to remove. I'll probably leave it off until my exhaust comes in a couple weeks.

it actually sounds waaay better then i expected.
sounds more beefier now.

Wow that sounds really nice. I'd like something like that, but a bit smoother with the exhaust on and not as loud lol.

With just the Berk HFC and the stillen Gen 3 intake and a full (OEM) cat back. Would it sound anything close to this?

Guys, I don't intend offense to anyone, but unless this actually produces a functional gain (i.e., power), this mod is rice, pure rice. It's a sound-only mod; the auditory equivalent to plastering stickers all over your car. All show, no go. Like a Toyota Tercel with a fart-can exhaust and a huge rear wing. Having said that, will it produce any real gains? I highly doubt it, personally, but we really don't know at this point. We need to have a before and after dyno test performed to know for sure. Again, I'm not trying to offend. I'm just calling it like I see it.

^ true, but for those of us still waiting to replace our stock exhaust it still could be something fun to screw with to pass the time :)