[arpad_m]

Originally Posted by NEZL1

Most of the chatter on here has been about keeping the car loud.
I was booted from the track last season for the car being too loud with just headers and stock exhaust.

Car is an 18' 1LE with a heartbeat supercharger setup (TVS 2300) pushing high 600s to the wheels.
The reason I state this is that it lost about 30whp just going from the corsa exhaust to the stock exhaust. With the butterflies closed I'm worried about creating too much backpressure. I've seen thin wall racing mufflers essentially explode before. The stock exhaust isn't thin wall, but you get what I mean.

I don't mind the car being down on some power, it has way more then enough for the track as is. I just don't want to damage anything.


Which fuse is it again btw?

Thanks guys

The one you're looking for is #51 in the engine bay fuse box.

I don't think you can force the valves closed at all times without a tune, pulling the fuse will keep them in their default state, which is open.

That said, I do recall seeing an option in the tune to change the default state, which is interesting, because I thought the valves had a spring-loaded mechanical part that pulls them back to opened. I don't know how a "closed" default setting could be maintained without constant power.


EDIT: there it is. Maybe I was wrong about the mechanics of the valve assembly.