Mufflers ARE power robbers

[TYTILIDIE]

I dont care hwat anyoen says now, I just put on my new muffler and I have to say it takes quite a bit away from spool time and just plain power. I ended up getting the Warlock muffler and havent gotten my elec dump yet but cant wait now. It sounds pretty nice but it really did affect power.

 

[MRKING]

Re: Mufflers ARE power robbers

Why not cut it in half and weld it up with a 3" pipe straight through . Just because its illegal to have no muffler , you dont need no muffler to be legal .

 

[dgoodhue]

Re: Mufflers ARE power robbers

I don't know much about Warlock mufflers. Are they a straight through design? Straight through muffler will have minal restriction. The ATR and Borla Racing mufflers, I have looked at in my hand I don't see how they would cause any restriction at all.

 

[Raist103]

Re: Mufflers ARE power robbers

i have a 3" magnaflow straight through muffler and opening the dump gave 30rwhp on the dyno.

 

[It's just a six]

Re: Mufflers ARE power robbers

I guess there is a cap that you can take off ,,,then it is a straight through design???

 

[George Blake]

Re: Mufflers ARE power robbers

I have the stainless style ATR used to sell. Dynomax Ultraflo I think it's called. It's 4" diameter inside the muffler. Straight through design. No way a 4" muffler is gonna restrict a 3" pipe. It drones a bit but really drops the decibles down.

Edit:
I think this is it here:
http://www.jegs.com/webapp/wcs/stores/servlet/product_10001_10002_17338_-1

 

[TYTILIDIE]

Re: Mufflers ARE power robbers

The warlock has a cap you take off. When hte cap is on it diverts the eaxhaust through a typical muffler type set up. Its pretty cool. I bought specificly so that I can bolt my elec dump and have the best of both worlds. I can post up a pic with specs if you guys want to see one. I hear they rot out fast so Im keeping my fingers crossed there. Now I just have to get the dump. It actually sounds pretty nice, kinda like a V8. With the cap off it sounds just like it did before I put the muffler on so I definately will be getting the dump soon, I just cant afford anymore tickets, my last one was a $500 fine and $400 was suspended if I dont get anymore for a year.

 

[Flyin Ryan]

Re: Mufflers ARE power robbers

I have the stainless style ATR used to sell. Dynomax Ultraflo I think it's called. It's 4" diameter inside the muffler. Straight through design. No way a 4" muffler is gonna restrict a 3" pipe. It drones a bit but really drops the decibles down.

Edit:
I think this is it here:
http://www.jegs.com/webapp/wcs/stores/servlet/product_10001_10002_17338_-1

That the muffler I currently have on my truck and love it.

 

[George Blake]

Re: Mufflers ARE power robbers

Get the one like we have and it won't rot out and you won't need the dump. Mine's been on there 8 years now. Still looks like new.

 

[TYTILIDIE]

Re: Mufflers ARE power robbers

Get the one like we have and it won't rot out and you won't need the dump. Mine's been on there 8 years now. Still looks like new.

How would I not need the dump? The whole point is to go from having a quiet muffler (to avoid the local muffler nazi's) to having straight through. If your car gives a hint of having moddified exhaust, they write you a ticket. Im just plain tired of getting pulled over for nothing. Thats why I went this route. You can see here why it would be appealing. How is the ATR better? Ive never looked at one.

 

[George Blake]

Re: Mufflers ARE power robbers

ATR style that we talked about is 4" inside diameter. No back and forth stuff like the one you are showing a pic of. You are putting a dump type setup to accomplish the same thing that the Ultr Flo already does AND it's quiet. See what I'm saying? You've already paid for a dump and the Warlock so you probably are gonna do the Ultra Flo anyway.

How would I not need the dump? The whole point is to go from having a quiet muffler (to avoid the local muffler nazi's) to having straight through. If your car gives a hint of having moddified exhaust, they write you a ticket. Im just plain tired of getting pulled over for nothing. Thats why I went this route. You can see here why it would be appealing. How is the ATR better? Ive never looked at one.

 

[TYTILIDIE]

Re: Mufflers ARE power robbers

But once the dump opens its straight through. And when you go WOT with the ATR I cant imagine its as loud. I could be wrong, never ehard one in person.

 

[ghettosled]

Re: Mufflers ARE power robbers

what george is saying is the ultraflow provides the same performance gains with half the noise.

providing your muffler is a straight through design the only performance gain to be had with a cutout is if you place it before the cat.

 

[UR50SLO]

Re: Mufflers ARE power robbers

I normaly run the Dynomax Super Turbos or Ultraflow's. Both are nice and quiet. We are currently using the ATR muffler/cat back system that came on our Typhoon when we bought it. Not sure how it flows realy but it's got a decent tone and seems to be ok.

I like to have it quiet in the truck/car so I can hear if somthing is going wrong. With it opended up your not going to hear somthing going wrong. Just my.02cts
~Scott

 

[JayLo]

Re: Mufflers ARE power robbers

Mufflers most definitely are power robbers.

In my Dodge Spirit R/T, I picked up 28fwhp peak (20-25whp on average from 3k rpm to 7k rpm) with a cutout at the downpipe. The rest of the exhaust was a 3? mandrel bend setup with a 3? Dynomax Ultraflo muffler. It blew me away how much a seemingly great flowing muffler could rob almost 10% of the power going to the wheels.

Oddly enough, I have the same muffler in stainless form on my Sy. Though I haven?t dynoed it yet, the seat of the pants meter (all I have to go on right now) tells me zero gains with the cutout open. Very strange. Maybe the stock chip has something to do with it?
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[TYTILIDIE]

Re: Mufflers ARE power robbers

I have no CAT and dont plan on putting one in. I have one laying around for emissions but they did away with it here so I imagine it will sit for quite some time. Thats why its feasable to put the dump on the muffler. Sorry George, I was confused why you thought that would work better, I shouldve said I dont run a CAT. If it were up to me I wouldnt even have a muffler but like I said, tickets. I drove around some last night and its real quiet, didnt even have to turn off when getting next to a police car.

 

[vortecfiero]

Re: Mufflers ARE power robbers

i have a 3" magnaflow straight through muffler and opening the dump gave 30rwhp on the dyno.

i have the same muffler and a 3" cat... we dont need no steeenking backpressure man :rotf:

 

[George Blake]

Re: Mufflers ARE power robbers

I had a 3" cat and a 3" Ultra flo that was 4" internally on my Syclone that Jesse bought from me. I LOVED that combo. No neck down in front of the cat and never had overboost issues that plagued a lot of others. I think I was just lucky. We aren't currently plagued with testing here so I may omit the cat and just run the Ultra flo on the ty when I put in Jeff's 3" downpipe I got. If you ever need to replace your muffler again, get an Ultra flo and you'll see what I mean.