Here you go, datdude... I have had both. I actually had a 3" cutout on my 3" custom exhaust and here is what I will say. I wouldn't get the cutout. My custom 3" exhaust is all straight pipe back to a borla (I don't like what it sounds like, working on finding a resonator I like) but at the dyno with my mods I made 260hp. With the cutout open, I made 261hp lol hardly a difference considering the price (230 because it was an electric cutout, PLUS installation)

The other problem you will have is with your car being lowered. The cutout doesn;t fit in the center channel of the car well, so the cutout part had to be angled down and it rode like 2" off the ground where I have my car lowered to and 2 times I went over a bump and got caught on the cutout and ripped my exhaust apart. Not only that but I had a QTP cutout which I would NEVER RECOMMEND TO ANYONE! It broke on me 4 times FULL OPEN in 3 weeks! The motor needed replaced not even a week after I bought it, than it wasn't getting power, than the wire shorted out it was BULLSH1T!

The only way I would ever put it back in would be if I put it right around the rear tire because that is easily accessible if anything happens and it would just be for the sound haha I liked that it sounded like a track car when it was full open and people would just look at it and be like WTF. It was also quite fun to blow past someone at redline and shift since my car runs rich it threw quite the flame and it felt like fireworks underneath your feet so imagine what it was like for the person you just shot past hahaha

I refused to pay the price for a Cattman exhaust but, in the long run, it might be cheaper. In terms of price for me I had a 2.5in exhaust done, changed parts around a few times, had the 3" done, with the cutout, had the cutout taken out, looking for a resonator now blah blah blah blah I probably spent about $1500 to $2000 just messing with the exhaust since I had the car. It would have been much cheaper for me if I knew about the 3" benefits before I got the 2.5" done and, it might seem like alot, but unless you know someone who is amazing at welding, mandrel bending, and will do it for less than $700 bucks, I would really just recommend buying the Cattman because I don't think anyone can come close to their quality. The axle back part of my custom exhaust was the biggest headache of all time and it's still not perfect. It hits over bumps and crap. Wish I would have just spent the money on the Cattman.

This was kinda long but I hope it gives you a better perspective. I was pretty irritated when I spent all the money on the cutout and it made no gains and even more pissed when I took it out after a month because it kept breaking. Don't make the same mistake I did lol

 

No mods other than exhaust components and same dyno, same temp, same humidity, same barometric pressure, dyno #'s are good for research but do involve many other factors that can change the whp readings....hell I could lose 20 whp by putting to much tension on the tiedown straps.... get my point?

 

yea....but my tracks times show the difference....238whp got me a 14.3@99 ....254whp got me a 13.8@104 last year.

 

very helpful indeed

 

I ran a 13.1 @ 130mph with a 3" Crush bent.......

 

shut up ***** lol

 

What if u have a 3" Crushed and bent *****?

 

13.8 sec/1320ft is good! Still untuned @ that time? With no other mods other than the mandrel bent CB?

 

The first thing you stated is false:
http://www.streetbeatcustoms.com/Fab...System/534864/
http://www.streetbeatcustoms.com/AA/...xhaust/531680/
but your second and third points are completely accurate. Cattman does a beautiful job and for those of us looking to but a cat-back there is likely nothing better. Also, it is simple logic that a mandrel bent exhaust will perform far better than a crush bent, due to the restrictive nature of crush bends.

On the other hand my opinion stands, for those of us not necessarily looking to purchase a cat-back but are just in pursuit of exhaust noise for that special occasion and maybe a moderate HP gain, for half the price, a high quality electric cut-out would be my choice.

 

yup...that is correct. this all happened in march of last year

 

:matt93se:

 

That's very enlightening....hopefully one day I can be in the Hi 13's with you...I'm swamped with work and other things right now, so I'll get those NWP spacers, new coil packs, VC etc...installed and all that's left is a Technosquare reflash even though they don't offer a reflash for the A/T the owner said as long as you know that I'll have to manually shift to reap the full potential of the reflash.... I'm after the revised ignition and fuel maps that's it......

 

3" exhaust=BOOM!

 

When was the last time you spoke with TS? I heard from others that they absolutely refuse to do it on an auto

As for cutout goes, after reading viperboys review, it made me not wanna go with a cutout, especially with an electric one

 

As recent as 3 months and I explained that I was aware of the TCU overriding the ECU's extended redline....and I was welling to sign anything necessary to accommadate one....He said no problem!

 

All ppl need to say is the VIN is a A/T but they did a 5 or 6 spd swap....

 

bro unless we are talking about dynoing at below -20* one day and 120* the other time, the weather and baro and whatever factor you are talking about on a dyno would change the HP by that much.... i dont see why this is so unbelievable??? jaydubb had a messed up catman axleback (the one that i had and have pics) changed just his axleback to a new cattman axleback and dynoed 10whp more... impossible right???

 

call em ****

 

that brings great news to us A/T owners! i'll contact them when i'm ready for a reflash

sorry for going off topic

 

and though i agree with you we can also say the berk intake is a joke, megan exhaust is a joke, i paid for the $800 catback and im not even gonna lie its way expensive and if you can go cheaper then go cheaper, no difference in gains really however, everybody is different and have preferences, i would personally spend $1200 on a 2.5" catback if i love it that much, im just an exhaust fanatic, i have a busted header on my car now and dont care to fix it really even though i am going to... some people go crazy for some mods (me an exhaust) dont knock me or others for that, i didnt buy it for the bragging rights as if you look at my mod list it still doesnt say 3" cattman exhaust, im not even the type to buy expensive mods if they all do the samething, another example, buying a $800 exhaust dont you think i couldve at least afford a "better" header setup???...........................

on another note, i dont see why you cant believe his HP gains??? why cause your car didnt or cant do it??? i dont get why would he lie? race him...

 

smmfh

 

 

I've gotta say. If I had the money to get the cattman 3" I would do it in a heart beat. I love the sound it produces and the qualitly is top notch. But for that price, I'm a couple hundred bucks from a complete turbo setup. (I gots hook ups)

 

Man please, barometric pressure, Humidity and temp have a direct affect on power output.....That's in any atmospheric air breathing engine....Gas turbines, ramjets, pulse jets, and recips....only rocket engines contain their own atmosphere in a bottle/tank...different dynos have different calibrations and different reading output....I could get very different reading from the same dyno, same day, different tiedown method....so please.....believe what you want....Dynos are good tools but it's not the absolute gospel....The 1/4 mile can be used to measure hp....that's how it was done b4 the dyno days.....but to each their own...

 

to Grand Hustle.

CMax yeah temps/humidity make differences in power output but assuming the same/similar time of the year, the power difference will be mostly due to the cat-back.

3" FTW, I want one.

 

+1

I know it's not because of a lack of backpressure, so what causes it? I ask because my axleback flange separated a few days ago, and I could instantly tell I lost some low end. I thought I might just be imagining it, so I did a 0-60 run in my usual spot, and got 6.6 sec. I used to get 6.4 seconds before my axleback section separated.

 

That's an exhaust leak, that merely disturbs exhaust flow.

Exhaust velocity is reduced at low load/low RPM when you have a bigger cat-back or cutout.

 

your times dont count! you live in MD! best 1/4 track conditions in the country! awesome DA's and good temp's.

 

+1. which is why its important to get your dyno tuning all in the same day and not scattered across the whole year.

 

Ok, thanks for explaining that.

 

I can agree to that the F33king Honda's now they be putting on some hella ricey a$$ exhaust loud as hell at 10 mph my Cattman is smooth I let my girl drive while I was outside to here it and I love the sound and I know Rice when I hear it!!

 

......

 

 

Oh, really so today and this same day next year should be pretty close in temp, humidity, barometric pressure, yall really don't know do ya....? I've said my piece....and I know what I'm talking about from performing power checks on gas turbine helicopter powerplants for 10 yrs....and from playing on the dyno myself know how unstable readings can be...that's why most folks do a 3 run average! I'm done~ If it was based on assumptions why not just assume how much power you're making and save your money and trust your butt dyno~

 

Are we done children?

This is actually a fair debate/conversation ...

 

(taking a breath)

 

entertaining isn't it......

 

Lol I guess my times don't count either?
I'm not saying temps and all the bla bla's don't make a difference, what I'm saying is on a N/A 5.5 gen the difference in 5* of weather ain't gonna make that much a difference, you know that's why the dyno have corrections right? So on a hot humid day your numbers would be low but corrected it would be higher and on a cooler or cold day your corrections would give you lower numbers, so I understand what your saying and yes they are factors but take your head out the book and get to real life, if you lived down here in MD where we don't keep yapping about what if and what should and all these factors, we dyno all the time and we track all the time, it is what it is, you seem like your tryna find a reason why datdude's numbers aren't accurate but it is, sorry if it contradicts what the books of weather or baro laws say.....

 

i was talking about a 3" crushed and bent p3N0r but i guess no one is interested.........

 

Awww, give him some cwedit (elmer fudd voice) lol