Posted a reply to a EVO General topic but should probably post the question here instead.

Ok....so now I have the Works DP, IP, AB. I must be getting old because I think it is too loud. Initially, I was thinking of keeping the WORKS DP and IP and getting rid of the AB and replace it with something like the BR axle back. Does anyone thinks that it would make a difference???? Since most of you are saying that the WORKS AB is relatively quiet. So I just went to a link and saw the my exact setup was at like 101 db. I am willing to switch to another AB if it makes it quieter. How about putting the stock muffler back in place with the WORKS DP and IP??? Any input would be appreciated. Thanks!

 

Do you have the WORKS IP that is non resonated? The non resonated version makes the Exhale pretty damn loud (too loud for my tastes). Try running the non resonated IP with a test pipe and your car will sound like an airplane.

 

Yes....non resonated version. So you think a different AB or putting the stock muffler won't help much? Or does putting the stock muffler in place will defeat the purpose of the free flowing exhaust? I think it is too loud too..but what can I do at this point???

Thanks!

 

I’ve driven with both (with OEM IP) and the WORKS Exhale AB is noticeable louder than the BR muffler delete pipe. I went from Exhale to BR and the difference was (is) significant.

Rick

 

You might try that Wayward and Scott (I think thats the name) AB. Suppose to be very good quality and mounts in the OE locations.

 

For the sake of clarification, do you mean the BR axel back exhaust (has the BR muffler) as opposed to the BR muffler delete pipe?

I dont see why there would be a difference between the Works Exhale AB and the BR muffler delete pipe.

 

It's Hayward and Scott and they're the ones that make the exhaust for the Mitsu WRC car. Very, very nice but waaay pricey especially given the freakin' weak dollar.

I'm still getting the works downpipe, ip, and possibly the ab depending on a number of factors.

 

why don't you try to put an resonator in line?

 

Hey Rick,

So you currently have the WORKS DP, IP (non-resonated) and the BR Muffler Delete? And the BR muffler delete is not as loud? As someone else pointed out......why would that be because aren't both (WORKS and BR) delete pipes basically just a pipe. Why would BR one be not as loud as the WORKS one? I can understand the BR Axle back (with muffler) would produce less noise. Please let me know because I would be very interested in this setup if it is true. Thanks in advance!

 

Well Gents lets just say that all ABs are not the same, not just an open piece of pipe if you will. In general the “pipes” themselves have vastly different dimensions and construction methods in both the main tubes and the tips; this is the main reason for the difference in db’s and respective sound qualities.

First off the Exhale is without a doubt the best made of the three we’ve tried, Exhale, BR and Pruven. The welds, fit and finish of the Exhale are superior, no question. From its heavy OEM flanged connection, through its one of a kind 3” continuous bend which connects smoothly (especially inside) to its double walled, rolled lip, contoured to the Evo bumper, polished SS tip ending at about a 4“ opening.

The BR muffler delete pipe starts with a good OEM flanged connection which quickly tapers into a 2.5” standard bend, a quick straight run up to the rear mount, a quick bend and exit straight back into a single wall, slash cut, polished SS tip. Imagine a 2 ½” piece of pipe sticking up about 1” through the bottom of a coffee can, that’s what the transition from main tube to the tip looks like inside a BR muffler delete pipe. Basic, functional, that’s all folks.

On the interior of the Exhale you have a smooth transition from the 3” main tube to the tip which continues from that connection to about a 4” opening at the end of the tip. This gives you more of a megaphone quality if you will and will in-fact increase the db level.

2.5” blunt end in the base of a can shaped tip versus smooth transition from end of 3” tube to 4” opening.

Plus, 50 to 100 miles of practice per week (I hear every new squeak).

BTW - Construction and fit on the BR is good, not excellent, but good. Fitment to the car by both products is perfect. Performance by both products is excellent.

We were mainly looking for weight savings here, the 2.5” BR muffler delete pipe only weighs in at 3.7 lbs. We’ll be sticking with 70 mm pipe sizes so no need for the 3” AB hangin’ on the back of the car.

Also, thanks to the WORKS, we’ll be able to complete our ultimate goal and mate the BR muffler delete pipe and a WORKS 70mm non-res IP to create a basic, bullet proof SS cat-back set-up for Autox.

Rick

 

...if the WORKS made a basic 70mm Exhale AB, with a single walled tip, with the same level of quality for, say.....$239....I'd buy it. (One Exhale for BIG pipes, one for small pipes, hint, hint ).

Rick

 

We have been designing and experimenting with a number of different ARCs (Anti-Reversion Cones) which will compliment the Exhale ABs. Basically this stainless cone insert can quickly be installed or removed with one simple bolt depending on the intended usage. With this modularity, you can drive quietly around your neighborhood and not be bothered as a daily driver and then on the weekends, go to the track, unbolt the ARC, and have some serious fun!
It's a lightweight, modular, effective solution. We should be completed with our R&D in less than 4 weeks.
For now, since all of our Exhale jigs were created from the OEM exhaust pieces, each Exhale component is compatible with the complimentary stock component so it's OK to install the stock muffler in place of the Exhale AB to reduce the noise.

 

Thanks Rick for the thorough explaination. Now I understand why there is also the big price difference. It is definitely good to know what/why I am paying almost double the price for the WORKS AB. Actually, I appreciate the quality of the WORKS AB very much. Having heard your explaination, I much rather keep the quality piece from WORKS and hopefully soon their Anti-Reversion Cone will be available to compliment the AB.

WORKS, I will be very interested in such component as it will do just what I wanted to do. Please let me know when it will be available.

Thanks again all!

 

FYI the test of the exhaust system that came out to 101db wasn't quite accurate (the testing was done about 10-15% too high on the rpm scale).

-S ...

 

And it was an analogue Db meter, not a digital one. Changing the angle even slightly with an analogue Db meter can yield completely different results.