Cuthroat Cutouts - Going to try these

[terrelltechsup]

Hi everybody, I am going to give these a shot. I called the owner and spoke with him for about an hour. This thing is well thought out and well built from what I can tell. No you cant go loud at the flip of a rocker switch or a press of a keyfob button, but keep in mind that any other cutout out there is not going to flow all of the exhaust out of the Y because they do not block the other pipe. I am going to put this as close to the 2nd O2 sensor as I can for race days. Thinking about just doing the Tork muffler delete for daily driving.

Cuthroat Cutouts

They only have one size 3 inches. This was done on purpose to be able to meet market demand from 2.5 inch up to 3.5 inch by stepping up/down.

 

[DaBears4Lyfe]

Not sure what you you mean by "but keep in mind that any other cutout out there is not going to flow all of the exhaust out of the Y because they do not block the other pipe" That process happens naturally by physics lol. Any little bit of exhaust that flows out of the rest of the exhaust doesn't do anything or wouldn't be more beneficial to ensure it all comes our of the Y and cant escape anywhere else.

Plus these you have to go under the car each time you want to change these from open to close????????

Also, you have not been under the car yet, i can tell you there will not be a good place to but this big of a Y pipe anywhere. The best place is on the Primary down pipe after the cats before it bolts onto the secondary midpipe (secondary cats)

 

[DaBears4Lyfe]

I would highly suggest you stray away from these and get either BadlanzHPE or QTP Exhaust cutouts. Im actually changing mine out in the next couple weeks if you are interested in a used set. Ill cut you a good deal. They are the rocker switched controlled Cutouts from BadlanzHPE. They have a 5 year warranty (about 4.5 years left) on the motors.

 

[terrelltechsup]

That process happens naturally by physics lol.

Mind expounding on what "physics" support this statement? For racing purposes you want the lowest back pressure possible on the exhaust side of the turbo(assuming the tuners can deal with the overboost problem). I bet if someone actually measured the amount of exhaust flow using an anemometer still going through the rest of the system with a traditional Y pipe, it may be surprising. I don't see how a butterfly valve on the Y would be better aside from convenience? If I can't find a place to fit it, then I'll take one for the team and eat the loss.

 

[DaBears4Lyfe]

I bet if someone actually measured the amount of exhaust flow using an anemometer still going through the rest of the system with a traditional Y pipe, it may be surprising.

I highly doubt it would be.

Further on your physics comment, the exhaust is pushed out a 2.5" pipe and wants to leave as fast as it can from the pressure of the air pushing it. I hope these work for you, i also dont see you going under the car every time you want to open them and either leaving them closed or leaving them open. The car sits too low to get under there without jacking the car up.

All i can say is find out yourself . Placement is not easy unless you want to jack the car up so these dont scrape on every high bump you go over.

 

[terrelltechsup]

Further on your physics comment, the exhaust is pushed out a 2.5" pipe and wants to leave as fast as it can from the pressure of the air pushing it.

The fluid dynamics of a gas is not as simple as this and I will just leave it at that.

i also dont see you going under the car every time you want to open them and either leaving them closed or leaving them open. The car sits too low to get under there without jacking the car up.

I bring ramps/fans/floor jack/race gas to the track... Am I the only one that does that?

Placement is not easy unless you want to jack the car up so these dont scrape on every high bump you go over.

It only adds 1.5 inchs to the height of the pipe (including the .5 inch difference between the 2.5 and 3 inch diameters). The problem is do I have at least 8 inches in the midpipe before the cat to fit it in. Dunno.

 

[DaBears4Lyfe]

The fluid dynamics of a gas is not as simple as this and I will just leave it at that.



I bring ramps/fans/floor jack/race gas to the track... Am I the only one that does that?



It only adds 1.5 inchs to the height of the pipe (including the .5 inch difference between the 2.5 and 3 inch diameters). The problem is do I have at least 8 inches in the midpipe before the cat to fit it in. Dunno.

You would here:



Good luck. You do know the ECU needs to adapt to the changes right? so pulling these off just before a run might not be a wise idea if you are expecting anything performance wise. Unless you are just looking for loud noises.

The good thing is even if you chop your exhaust and these dont work as you expected its easy to keep them closed

 

[terrelltechsup]

Or I chop the midpipe and it doesnt work and I have to get the SSR midpipe as a replacement because it is cheaper than the stock one

 

[DaBears4Lyfe]

Or I chop the midpipe and it doesnt work and I have to get the SSR midpipe as a replacement because it is cheaper than the stock one

I agree.