Bosal VFM1731 Resonator and Pipe Assembly - Exhaust System

MBRP Inc. R2009 MBRP is proud to introduce high flow aluminized resonators to the ever growing line of performance exhaust components. Great for the muffler shop installer who bends custom exhaust systems, these resonators can be used on many custom applications, from Hondas to Hot Rods. Take the edge off any performance system with an MBRP Diesel Resonator. This high flow resonator will help reduce that annoying interior resonance without compromising performance. The compact design allows you to install this resonator with virtually any system on the market. Reduce the sound level, not the sound quality.

Customer Review :

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Vibrant 1142 3" Ultra Quiet Resonator
Price : $105.95 $101.36
Features :

Designed to dampen exhaust noise
Facilitates undisrupted exhaust flow
Constructed from t304 stainless steel
Features a "true straight through" perforated core
Withstands high exhaust temperature

Average Customer Rating : Not yet rated

Editorial Review :

Vibrant 3" Ultra Quiet Resonator is designed to dampen exhaust noise and facilitate undisrupted exhaust flow. It is constructed from T304 Stainless steel and features a "True Straight Through" perforated core surrounded by sound absorption materials. This highly durable resonator can withstand high exhaust temperature and is Five year limited warranty.

Customer Review :

No review yet

Vibrant 1141 2.5" Ultra Quiet Resonator
Price : $99.95 $96.03
Features :

Designed to dampen exhaust noise
Facilitates undisrupted exhaust flow
Constructed from t304 stainless steel
Features a "true straight through" perforated core
Withstands high exhaust temperature

Average Customer Rating :

Editorial Review :

Vibrant 2.5" Ultra Quiet Resonator is designed to dampen exhaust noise and facilitate undisrupted exhaust flow. It is constructed from T304 Stainless steel and features a "True Straight Through" perforated core surrounded by sound absorption materials. This highly durable resonator can withstand high exhaust temperature and is Five year limited warranty.

Customer Review :

not bad

Just as advertised, but for a couple things:
> Tube sizing was over which made for a bit of a sloppy fit. I welded it on one end and slit it pipe on the other end so it would fit tight. If you can't do this, you might want to try something else
> it didn't quiet very much, so I would have preferred a bit more sound deadening.

Rating :

ULTRA Quiet is ULTRA Quiet!

This resonator is everything I wanted. I had a 2.5" Downpipe connected to a 2.5" cat-back system and boy did it DRONE BAD! as early as 3000 RPMs!

It drove me INSANE (this is with the windows UP!) I found this, bought it, had a section of straight pipe between the cat and catback cut off and this fit in there pefectly (but i knew this before i ordered it)

Now i would say, even with my full turboback system, it is just as quiet as stock! this is what i wanted, a stealth exhaust system

As for quality, it is amazing, you wont find a single weld you dont like. Plus the design is straight though, i did not "feel" any power loss due to any "backpressure" doubt there was much backpressure added...

Rating :

Vibrant 1792 Bottle Style Resonator
Price : $56.95 $47.85
Features :

Designed to dampen exhaust noise
Facilitates undisrupted exhaust flow
Constructed from t304 stainless steel
Features a "true straight through" perforated core
Withstands high exhaust temperature

Average Customer Rating : Not yet rated

Editorial Review :

Vibrant Bottle Style Resonator is designed to dampen exhaust noise and facilitate undisrupted exhaust flow. It is constructed from T304 Stainless steel and features a "True Straight Through" perforated core surrounded by sound absorption materials. This highly durable resonator can withstand high exhaust temperature and is Five year limited warranty.

Customer Review :

No review yet

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Questions & Answers

Question : What's the best way to update a car's exhaust for performance?
I plan on upgrading my exhaust system for my car which is a 1994 VW Golf but I haven't any idea which way is the best. Are there mufflers that are good and ones that are bad? Has any one ever heard of high flow catalytic converters and if so what do they do? Does my resonator in my car serve a purpose or would it be bad if I took it out?

Answer:
I'm assuming you mean a race cat.They are a "straight through"catalytic converter.A race cat, headers and low backpressure muffler will give you a little extra performance; but,probably not as much as you would think...additionally and VERY important.....a race cat. will satisy the law ONLY in the requirement of HAVING a catalytic converter; however, if you have emissions/smog testing laws in your area...it might not pass.Headers and other exhaust mods will enhance other mods (turbos, superchargers, NOS.. etc) but they're not going to give you an extra 50 or 100 horsepower, alone.You can get race cats at places like Summit, Jegs...etc

Question : Will removing exhaust system void my warranty?
I have a 2005 dodge dakota with a 4.7 liter magnum, 4 wheel drive, locking differential, 40,000 miles, and an SLT package. But i was looking for something to do to my exhaust. And when i took a look around i noticed that there were 3, count em, 3 resonators under there. I looked more carefully and saw that it could unbolt into three sections. If i took the last two sections off still leaving one small resonator and exit the exhaust pipe out the back will that void the warranty i still have on my truck? the cats are still there and it shouldn't do anything about emissions. Will this cause problems in the engine with the fuel mixture? And any back pressure issues? let me know because i would not like to void my warranty. (and they can be put back on)

Answer:
Usually anything infront of the last O2 sensor you cannot mess with it will void your warrenty. Due to all the smog rules and regulations. To be on the safe side I would call a Dodge dealer and ask them what you are able to do to the exhaust without voiding your warrenty.

Question : Everything there is to know about exhaust systems?
What website can I find everything about every kind of exhaust system from Cat-Back to mufflers and resonators, to piping and tips?What they do, why, etc?

Answer:
http://www.autoeducation.com/autoshop101/exhaust.htmYou may have to hit a few other sites to gather performance information,

Question : Exhaust/resonator question?
My question is related to my exhaust system. I have a BMW M6 (V10). the primary cats are built into the headers/exhaust manifold, then come the dual secondary cats, then dual resonators, and then dual mufflers. I wanted to hear the V10 scream, and i recently removed the mufflers, and placed straight pipes (after the resonator). it sounds awesome!! The only thing is that I want to quiet it down just a tad. On highway speeds, it has a low hmmmmmmm above 2500 rpm.. (is that know as "drone"?) Question: What would be the best way of lowering the sound a bit? would another set of resonators help? (I'm trying to stay away from mufflers if possible, I love the sound right now, just a bit too loud).

Answer:
My question is related to my exhaust system. I have a BMW M6 (V10). the primary cats are built into the headers/exhaust manifold, then come the dual secondary cats, then dual resonators, and then dual mufflers. I wanted to hear the V10 scream, and i recently removed the mufflers, and placed straight pipes (after the resonator). it sounds awesome!! The only thing is that I want to quiet it down just a tad. On highway speeds, it has a low hmmmmmmm above 2500 rpm.. (is that know as "drone"?) Question: What would be the best way of lowering the sound a bit? would another set of resonators help? (I'm trying to stay away from mufflers if possible, I love the sound right now, just a bit too loud).

Question : Why after removing resonator from exhaust on my 02 monte SS, I have no power?
On my 02 Monte SS, I just removed my Resonator from the exhaust system, by the next day,My car has no power. I step on the gas, rpm's go way up ;accelerates very slow, Driving over 30 mph is a distant memory. HELP My SS couldn't pass a turtle.

Answer:
In removing the resonator You've changed the back pressure of the exhaust system. In all newer cars the engine is controlled by a computer with a multitude of sensors. In changing one thing, these sensors are getting improper data. Reinstalling the missing resonator is suggested. If Your reason for removing the resonator was a gain in power. I suggest that getting a cat back high performance exhaust system designed for You car.

Question : exhaust system for my vw golf?
i have a 1995 vw golf...dont wanna spend alotshould i remove resonator and add a magnaflow or keep resonator and add magnaflowonly have like 200 dollarsjay will just adding new muffler make the sound that much better??

Answer:
I've been doing custom exhaust for years. In my experience most people that remove the resonators end up regretting it in the end. It can make for a really tinny and raspy sound. But it depends what sound you're going for and how loud you want it. Also pipe diameter, and muffler design will make a difference too. I would recommend keeping it at first and seeing how you like it since it doesn't cost anything to keep it there, whereas you'll have to pay to remove it. Also VWs are known for exhaust problems, so the german stuff isn't any better than the north american stuff. You get what you pay for. A $30 muffler is still a $30 muffler regardless where it's built or who's name is on it.

Question : Exhaust system on my mustang?
I would like to make my exhaust system sound better on my mustang. I wish it was a GT but it isn't. It's a 97. I live in hawaii and there are little to no laws about exhaust systems.. I dont know much about exhausts.I would like a cheap job done and with decent results.So I'm thinking..... -Running Straight pipes.-Catback.-Take off resonator.There might be a better idea out there. I dont know much... Anyone can help give good advice?

Answer:
Generally speaking, you get what you pay for - if you want a cheap job, you're not going to get good results.V6's tend to sound raspy (more like imports) because of the smaller engine so what makes a GT sound awesome could make your V6 sound more like a Honda than anything.As a fellow V6 owner, the best recommendation I can give you is to go with a true dual (not a y-pipe) exhaust setup with chambered mufflers. Straight pipes will have poor sound quality and can negatively affect your car's performance. Resonators are going to have that high-pitched raspy sound as well.

Question : Do bends in an the exhaust piping alter the sound of the exhaust?
If not, exactly what factor alters the sound of an exhaust system (in a car) other than the engine, muffler, cat, resonator, etc.?

Answer:
Pipe bends don't really have an effect. Sometimes exhaust tips can change the sound but not much.

Question : How to install new headers and exhaust system?
I have a 1986 GMC c1500 p/k with 350 v8 5.0 liter bf goodwrench engine. Is there a website or any books? Also should i get a catback performance dual exhaust system with resonator tips or a performance glass pack dual exhaust system? Which one is louder and gives more horsepower?

Answer:
first of all, you dont have a 350 5.0. its either a 5.0 (305) or a 5.7 (350). but other than that, you should be able to get relatively cheap headers for this truck, and i dont think they would be too hard to install, since you can nearly climb into the engine compartment and stand up in there. once you get the headers, either re-use the stock cats or buy a pair of new ones (careful, they get kinda pricey) if you need them, but save some money and find a good exhaust shop and get them to fabricate an exhaust system. most of the time, they cant touch the cats, though. they have to have all sorts of stamps and certificates and red tape crap to deal with anything on the emissions system, so you might have to do that part yourself. but theres no use in paying for an expensive cat-back system, then paying for someone to install it when you can just go to a regular shop and have them do the whole thing for less than what you would pay for parts. and i think the glasspacks sound better on those trucks, but really its just a matter of opinion.

Question : What does the resonator in an exhaust system do?
I'm redoing my exhaust system for my 1996 Mazda MX-6.I just want to make it a straight pipe with a glass pack (to tone it) instead of muffler to make it sound loud. I like loud.Anyways there is a long resonator right after my catalytic converter. My friend says it's for both noise and emission control and I can't pass smog without it. I said it's just for noise control and it's muffling the sound of my little rice burner.I want to take it off and make my car sound like a mean lean rice burning machine, but I want it to be able to pass smog.So is it for both emission and sound control, or just sound? Is taking it off a good idea?

Answer:
the resonator is not a good idea to remove. but by doing so your cars exhaust sound increase by at least 20 to 25 percent. i believe that doing a resonate delete it will not pass the smog test. if you want a greater sound, or a deep low tone buy a muffler that is about a half inch to an inch bigger than your stock inlet piping and it can cost you about the same as a resonate delete...with out the loss of horsepowersome of my local shops can do a delete for about 100 or a less but this quote was from a while back. if you want your muffler to be loud just dont use the silencer but be aware for the police. and a muffler installation is only about 50 dollars to 70 or so unless its a universal as those require more labor thus a little bit more money but well worth itnice brands for mufflers are vibrant. skunk2. apexi n1. magnaflowgreat for a 4 cylinder

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