ty_ty13

iTrader: (42)

I have always wondered this and now ill ask... when i first installed my headers i ran around for about 15 min with them open and then the car started running like ****... how are you guys with open headers and cutouts running around and still keeping your car running "right?"




Tyler

Ferocity02

iTrader: (60)

I don't think many people run actual open headers, but rather LT headers with extensions and/or bullet mufflers. This is done to protect the O2's from fresh air that can cause misleading measurements for the engine, which would make it run poorly. Often, running "open" headers will require some tuning due to the massive loss of backpressure.

ty_ty13

iTrader: (42)

so you guys have about a 12 in. extension off of your headers?

Ferocity02

iTrader: (60)

I think 16" - 24" is pretty common, at least from what I have seen. I have dual cutouts so I can run open headers. The extensions off the cutouts are about 18" away from the O2 sensors which provides enough piping to protect the O2's.

ty_ty13

iTrader: (42)

oooo..... so as long as you have enough space between the O2's and the fresh air your fine...k... you or any one have a pic of the dual cutouts?

Ferocity02

iTrader: (60)

Here is mine...

MTz8

iTrader: (1)

whered ya get that? never seen it.

TNormZ28

iTrader: (9)

open headers cause a rich condition due to the o2's reading ambient air temp. that fouls out the plugs. It has nothing to do with backpressure.

psykoTA

iTrader: (4)

Cause its custom. Its pretty cool lookin. I bet took some work to get right though.

Joker # 9

iTrader: (1)

Cut outs at the end of each header ( no cats), the car is tuned to run that way, I dont know what effects it has when the cut outs are closed (going through stock exhaust), but you can definatly tell a performance lose.

Caribe

iTrader: (1)

Everytime I see that set up it is like a work of art
Have you got to see the difference in HP/Tq on a dyno or at the track?