Does anyone have an exhaust cutout N/A?

Would it be beneficial to have one just after the headers? Do you think there would be any measurable/significant gains. Say, and electric cutout that you only use at the track or such? Worth it?

 

aaron92se said he gains .15s consistently with a cutout.

 

I was thinking the same thing, and I'd say for 140 bucks even if it didn't give you any gains, the sound it makes might be worth it.

The issue is finding a spot before the cat where you can mount it.

 

I have an electric cutout in the test pipe. 6whp, 2wtq N/A on the 3.0 when opened. Ungodly loud. I only use it at the track. Those gains are over a 2.5 b-pipe and straight-thru muffler, so on a stock system the gains would be more.

 

So I guess on well modded 3.5 it should be worth it... I have an aftermarket Cat currently (Cattman) I imagine the cutout simply replaces that with a test pipe w/cutout? Where can I buy one?

Current exhaust system is all Cattman (Headers, Cat, huge resonator, B-pipe, rear section).

Be interesting to see what it sounds like on a VQ35. Basically like having open headers.

 

The first time I started my engine, I ran it open y-pipe. It sounds something like a heavily modded rotary/V8. I must say it sounded amazing.

 

Lol. Guys at the track will be wondering what the *** is going on.

 

I had to move my parts car with just its Y pipe on it, it sounded goood... Very V8ish. hehe never get that with a puny 4 cyl...

~Alex

 

So where can I get a good electric one?

 

I think google has them

quicktime, mccord, and one other one that I can't remember were the ones I was looking at.

 

Mine is a QTP.
http://www.quicktimeperformance.com/QTEC/

The other large company that I know of is McCord.

Be prepared to lose a little ground clearance if you install it in a test pipe.

 

Was looking at this since last fall and I'm going with McCord simply because it's a bit better priced than the QTP, and quality seems to be similar based on searching around. There is also DHM but they are expensive.

 

I have a cutout in my test pipe, but the way the cutout is angled, I can't get the electric motor to fit. There isn't enough room above it and it hits the floorboard. That, and if you try to mount it upside-down, the motor will get ripped out on your first speed bump. I'm thinking of taking it to a better exhaust/welding shop and see if they can think of any ideas. If I remember correctly I'm running a McCord...

96sleeper- care to post up those pics of your cutout?

 

So I take it it isn't car specific? Good.

Found this on his cardomain page:

 

Nah it's universal.. just different sizes.. 2-1/2, 3" etc

 

I am also planning on getting this instead of buying a $500+ exhaust system. It would be kinda easy gettin a race with my car looking stock. Of course after i open it people will figure out whats going on.

 

JClaw, I say it's VERY worth it even though we are NA. My car is very consistant since I bracket race a lot. I know my car very well. It runs consistantly .15 faster in the 1/4 mile with the cutout open than it does closed.

It's definitely worth it! I have the McCord Power Plate. It's slightly cheaper than Quicktime. Both are GREAT from all the reviews I've read. I've had mine for over a year now without any problems.

The only little problem that I have from time to time is the plate getting stuck. You definitely have to maintain the pin and lube it up with some type of heavy bearing grease. When it gets dry, it struggles to open sometimes. But it's such a small problem, that it's barely worth mentioning. Any electronic valve like this so close to the road will have to be cleaned and oiled from time to time.

 

so what effect would it have on a lowered car? And how sturdy would it be to scraping on a speed bump?

I'm interested in doing this after my 3.5 swap..

 

If your car is lowered alot, I would not mount it in the test pipe, unless you want to dent the floor frame quite a bit to get more clearance. I have scraped a few times, I don't think it would take a big hit. I have B&G springs, but my car has some weight removed so I am not sure the amount it is lowered.

My car is not my daily driver. You can see in the pic I mildly dented the floor frame to get some clearance. I would not do this if I lived in an area with lots of speed bumps or uneven pavement, or many people rode with me often.

 

is there anyone that had this done, and even though they dented the floor frame a bit (i dont mind), it doesnt sacrifice much clearance?

 

Chris'sMax has the ATP boost activated Cutout and he is slammed on coilovers. I think he is crazy though.

 

so where exactly do you guys recommend placing the Quicktime cut out, before or after the cat? i just ordered mine and i am dropped with sprints, but also have stage 1&2 subframe connectors under the car so the issue about being too low or scraping really isnt that big of a deal to me since i hit the subframes occasionally. also, how much do you think the install would cost at a local muffler shop?

 

^^ I was wondering the same thing also. Is there any 5th gen with this mod that can tell us of their experiences with this mod?

 

Its sounds crazy when open in the upper part of the rpm band. Nothing like seeing exhasut shoot out from underneath the car from under front driverside door

 

I'm not crazy, i am just not normal

 

chris'smax, where exactly did you mount your cut-out? i'm guessing after the cat before the intermediate pipe?

 

in my test pipe

 

That's the best place I could have put mine without doing some major work to the Ypipe.

 

would there be a major difference to where u place the cut-out? Either before the test pipe, or on it?

 

Not really, as long as it's before, or in place of, the cat. It will definitely make a noticable difference.

But, there won't be any major difference if you place it in the testpipe instead of before the cat. The only thing you have to think about is where your stock o2 sensor or sensors are located. If you ever plan on driving with the cutout open while closed loop, then it can mess with your motor. I've never had experience with that, but I'm sure the o2 sensor will make your car run funky. But only while your at idle and/or cruising (closed loop).

 

what about for the guys like me down here in Texas that have to pass emissions, and im sure that having forced induction and having a cut-out in place of the the catalytic convertor would cause me to fail my emissions test, right? I was looking at my exhaust and i have a short pipe right behind my catalytic convertor thats before my B-pipe that has an o2 sensor in it, i was thinking that i could replace that pipe with the cut-out and have an o2 sensor bung welded into the cut-out piping, but im not sure how beneficial that would be, or if im just better off to try and have it welded into my y-pipe some how... any suggestions on what i should do, or should i just leave it up to the muffler shop to decide?

 

I use to live in Las Vegas, where I had to pass emissions. I put my cutout in my testpipe and once a year, I unbolted the testpipe and bolted up my cat, passed emissions, then went home and swapped it out again. It only takes 15-30 minutes to swap it out. I did that for two years then I moved to NC where I don't have to worry about emissions.

 

isnt a test pipe just a straight pip? so it's just like an exhaust cut out that just bolts into place like you said. how do you wire it up?

 

Yes, Yes, and you use the wiring that they give you and follow the instructions.

I have the Mccord Plate and it works great.

http://www.mccordcg.com/mpp/mpp.htm

And from the reviews I've read on many different forums, the Quicktime is every bit just as good as the Mccord.

http://www.quicktimeperformance.com/QTEC/

Also, look on the first page. If you saw the first page, you would have saw that the testpipe is just a straight piece of pipe. And you would have saw how the electric cutout plate bolts directly onto the cutout that you weld into place.