Dog got blasted by a huge shot of exhaust, she looked terribly disgusted about the entire incidient

Ya it sounds amazing at WOT

Huge upgrade

 

You going to be tuned for it as well?

 

Never on mine, it's been on for about a year now.

 

i cant wait to get this pretty pumped. and are you on stock tune right now? if so throwing any codes? im not too worried about it but just curious

 

No codes so far

Stock tune right now yes

This thing sounds amazing when it gets warm and you do a good pull on 1 to 2 shift

Sounds real good when you NLS it from 3 - 4 also

Very happy with this Downpipe

Waiting on my 2nd PCM to show up before tuning

 

I know that a cat-less downpipe is not "street legel" for emissions.

Of course, the gains can be slighty improved by installing a catless DP.


My question is: anything bad like "back pressure"??

A friend of mine told me that on his STI, it was better to have a cat to prevent "back pressure".

anyone knows about this or it doesnt matter having a cat-less?

 

isnt it always nice when you get new parts in the mail? its almost like nirvana

 

i didnt get the zzp badge!!!!!!!! i see you guys took what i said to heart and made the o2 chamber longer!

I had one of the first versions of this pipe... 14 months now and still NO leaks, 12,800 miles and NO leaks...

 

mines not on the car right now b/c its LOUD. I need to get a better muffler and resonator before that goes back on

 

You're probably thinking of the SS/SC downpipe. I have heard people complain about the 2-bolt flange. This one is obviously different.

 

So.. i need to buy one of these i take it? lol..

Is there a new version of the ZZP DP in works? Or is the one with the O2 bung the one to get?

 

I have their catback w/o a res and their catless dp and mine's not loud at all, I love the sound of mine

 

What else did you do ?

Cause mines only loud at WOT and Startup when the Engine is cold

Other than that you wouldnt even know it was on there

 

That is when its loud. And thats when its 6:30 in the morning and i need to warm my car up b4 i leave and i feel embarassed that my neighbors have to hear it every morning. I couldnt give a **** how loud it was anywhere other then my street. I used to put my muffler silencer in on startup, and go in the house, make coffee, come out take the silencer out and then leave. Finally i just put the stock DP on cause i was tired of doing that

 

hmmm well looks like i need to do a catless DP and GMS1 this year

 

The more i drive the car the more i enjoy this DP

Great Job on this thing ZZP

 

does anyone have a catless DP and a NLS vid?

 

Wow thats suprising loud for just revving it. Your catback is stock right? I think this just confirms for me that I want to go catted. Not to say it sounds bad, cause I think it sounds fine, I just dont want my daily driver to be too loud.....thats what the straight side pipes are for on the Vette lol. Plus Im not too keen on overly loud 4 bangers lol... The catless definitely sounds nice though

I definitely plan on going with ZZP though, their quality looks amazing. ...any chance of a GB?

 

It's only loud like that when cold or at WOT

Normal driving you don't even notice it

 

http://www.youtube.com/watch?v=3ajAP-bZ9Vs

It's your cot (cat over temp) or cat warm-up that makes the car loud in the morning.

 

That was cool

 

[QUOTE=D-mac;4884501]That was cool[/QUOTE

I think that was about .2 sec. Matt and I were battling to see who could get the fastest NLS but he got me with a .14

 

Thats pretty fast

At what point do we have to worry about using NLS?

 

lmao what a pop sound from the NLS

 

You don't ever have to use it, but it's a great aid in boost recovery with the bigger turbos. If you look at the dyno graph at the end of the video you will see that the boost never drops (green line), it goes up, which is what we are commanding it to do but if you don't use the NLS it will fall then go to the commanded boost.