I'm thinking of getting this done to the Speed3. I quite like the stock sound of the muffler. My last car was obnoxiously loud so I like a quieter tone. But I wouldn't mind just opening her up every once in a while, especially if some STis are feeling playful. So I was thinking of going with this.
Here is a pic on an Audi A4.
A local exhaust shop who does FANTASTIC work is offering this for around $300 installed. Basically $150 for the cut out and $150 for the install. They run the wire up through the fire wall and let you mount the switch wherever. Also comes with a four year warranty. What do you guys think? Also, while I don't see it being a problem, do you think I'll have Mazda warranty troubles?
Here is a pic on an Audi A4.

A local exhaust shop who does FANTASTIC work is offering this for around $300 installed. Basically $150 for the cut out and $150 for the install. They run the wire up through the fire wall and let you mount the switch wherever. Also comes with a four year warranty. What do you guys think? Also, while I don't see it being a problem, do you think I'll have Mazda warranty troubles?