Thread: Electric Cutout Discussion

I'm going to go and disagree with your conclusion Pete . But I guess you saw that coming?

You understand incorrectly.

I do believe so. Those not seeing good results must be doing something wrong IMO, like angling the cutout poorly, or other silly things.

Do you have some examples, testimonies, or proof? Does the placement of the cutout have to do with it's performance? A lot of people run 2.5" exhausts and make good power. Is a downstream 2.5" cutout going to drastically hurt performance? I'm not trying to make excuses, just looking for some solid information. Maybe a link to some facts I can look at.

Thanks for the reply.

So why do people say the car run a little stronger open header....

If you are going nitrous, do the cutout. Don't think too much into it.

I hear you. Just trying to get as much information into this thread as possible so people will have something recent to reference from that will answer their questions regarding cutouts. I'm still undecided at the moment, because I don't want an aftermarket exhaust. Just trying to see if anyone has had any success with the cutout N/A. I know for any form of forced induction it would be beneficial. Did you notice a horsepower or torque drop with the cutout open on your car and where exactly did you place your cutout downstream? Also, what size is you cutout?

Only real feasible place to install cutout with out much interference is where the cat goes. My cutout is a 2.5flange but tube diameter is a 3inch.

My setup is putting down almost exactly the same power with the same engine and trans when I had it installed in the G20. On the G20 I had a 2.5exhaust and a stock ssac 2.5 header and factory ecu with a s-afc everything else is the same, I even have the same rims and tires.

Did you have 2.5" exhaust on both cars, or just on the G20?

This is really all I can think of...

https://www.youtube.com/watch?v=-xx4BsBr2fU

I run a cutout that is pressure activated on my z31. It opens up at about 10psi by using a wastegate actuator. Untill i put a cage in it was a total sleeper. Wont work for na but fun on turbos.