Ive never actually seen this, but a buddy of mine tried explaining that cut outs consist of a cord that is pulled from the inside of the car, which separates the b pipe from your header or diverts the airflow or some ****, so you run straight header when the cord is pulled (whenever you want) and still have the capability of have a full exhaust. IM confused.


iono....sounds kinda cheesy and ineffiecient

 

search is your friend....

https://honda-tech.com/zerothread?id=486234
https://honda-tech.com/zerothread?id=513764
https://honda-tech.com/zerothread?id=507922

a picture is worth a thousand words

 

I've never used the cord-actuated exhaust dump, but I had the one with the plate that I would unbolt at the track. From what I HEARD was that the cord-actuated dump wasn't that reliable or strong, and would break pretty easily, but I never had any experience with it, nor did I know anyone with one so I can't say for sure how it works. But I had this exhaust dump (2.5" inlet/outlet), along with friends who also had one, and it worked out great for track use with the dump installed right after the header (where the cat would/should go ).

 

is there really any point besides noise?

i'm guessing only boosted cars see gains from this?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by j.fuggi &raquo;</TD></TR><TR><TD CLASS="quote">is there really any point besides noise?

i'm guessing only boosted cars see gains from this?</TD></TR></TABLE>

Not just noise, but if you're pushing some good power from your motor, then this helps, basically running "open header" as this dumps right after it. This is what I used when I ran my H22 on 22x7x13 slicks to achieve a 12.6 @ 108 mph time. Doesn't help worth a **** under 4500 rpms, but after that, in VTEC, it pulls really good.... loud as fawk (seriously need ear plugs when driving a totally gutted car), but did help out quite a bit on my runs.

On a D-series or B16 motor, I'd see it as being kind of pointless as you wouldn't have enough back pressure for the motor, even at WOT.

 

[QUOTE=Newman]

QUOTE]

I had one like this on my car back in 95, with a choke cable to activate the "door." The gains that you get aren't really worth it. Rather run a regular hi flow exhaust system. The one above with a removable door for the track is a good idea though, with wing nuts, quicker/easier than unbolting and securing exhaust

 

no GSRrR......YOU are my friend

 

Newman

do you have any pics of it installed?
I got the quick time awhile back but have not put it in yet.
http://www.quicktimeperformance.com/qtec.htm

I think I am going to end up running a stock exhaust and the cut out. To help with the noise

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rolow &raquo;</TD></TR><TR><TD CLASS="quote">Newman
do you have any pics of it installed? </TD></TR></TABLE>



Not the cleanest job, but it worked and when painted with high temp black enamel, it looked clean and stock underneath the car.

 

is your header a slip fit?
What brand?

I want to do something similar header then an exhaust with the cut out and no cat.