is there a website link one can direct me to?

 

Do you mean the exhaust valve that is actuated by throttle position for variable exhaust pressure, theoretically keeping the low end torque, while still gaining top end power? I have seen something like this somewhere on the internet... or sold at Speedy... I'll have to look again.

 

Here's what I found at www.jcwhitney.com

AROSPEED
EXHAUST CONTROL VALVE
Perfect for anyone who wants a tunable sound from their exhaust!
Adjust the exhaust sound from inside you car
The sound you want when you want it?adjust the exhaust flow and tone with just the flick of a switch
System includes a cable-controlled plate that can be adjusted from fully open to fully closed (minimizes airflow without choking engine) using a switch that mounts in any convenient spot in your car. Works with virtually every exhaust system on the market.

 

thanks that was what i was looking for
i planned on instaling this so i can open up the exaust on race days without having to buy a down pipe, i also plan on getting a exaust y fitting just so i can run stock exaust and then open when the oportunity arises.