FYI the DRONE is not caused by the headers, its caused by the size of the
exhaust pipes and by the mufflers. Changing the headers will not reduce
your drone one bit.. in fact anything you do to increase the power (long
tubes) will INCREASE the drone.

LJH
95GT (331 stroker, Bassani exhaust)

> wrote in message
oups.com...
> Hi Stangers:
>
> I've got a 91 LX 5.0 AOD with a couple minor bolt ons (pullies, K&N
> filter, Flowmaster 2 Ch, 3:73's and a performance valve body).
>
> Does anyone know if I put LONG TUBE headers on with a high-flow (2) cat
> h-pipe, will the car pass emissions? I want to get rid of the 2000 RPM
> stock header drone and maybe pick up a few horses.
>
> My car won't have to pass the coming NYVIP/OBDII test (it's older than
> 1996) but has anyone done this exhaust swap and passed the current
> sniffer test?
>
> TIA!
>
> Sam
>