Now I know quiet and mid-pipe doesn't go together... I want to know which mid-pipes on the market is known to be the tamest when it comes to sound. I do want the performance benefits of the mid-pipe but I want to put up with one that isn't the loudest. By assumption and a little bit of research, I assume that the BHR DR, RB DR, and Mazsport DR is one of the quietest on the market. I would put Mazsport's into consideration but it's obviously out of production and it's going to be a bitch finding a used one (something I wouldn't mind if I'm fortunate to find one). Any suggestions?

 

I have the BHR and during cruising it's quiet. Like all catless midpipes it does got loud when you mash on the throttle.

 

I do expect all mid pipes to be loud when I'm on it. I just want my car to be civilized and be as tame as possible with a mid pipe when I'm cruising around and on the highway.

 

honestly any midpipe on the stock exhaust is pretty quiet, i have the turboxs mated up to my stockie, when i had a LITTLE leak it was fucken LOUD, i sealed it with a gasket and it sounds stock, the only difference is at 4k rpms, you'll here the rasp, other than that my intake is louder.

 

I have the Racing Beat dual resonated with the Racing Beat Rev8 exhaust and it sounds almost too much like stock. Might be looking into the Greddy SP2 catback.

 

I do plan on getting a catback with the midpipe (perhaps mixing the brand) though. Undecided on which though. It won't be a small 2.5" piping though. I also absolutely hate raspiness which seems to be a problem with a midpipe + stock catback combo. I heard a Mazsport DR midpipe + Borla combo and I really liked the tone.

 

you hate raspiness avoid Turboxs, And B&B

 

Yeah the BHR is VERY quiet at cruising, but as soon as you get on it, you get a nice sounding exhaust. I think you're right though, the RB will be quieter at WOT.

 

didn't Ray and Todd take decible readings on this a while back? I'd be curious how the BHR did against the Mazsport since it's pretty much the exact same thing as the RB unit.

 

Some guy said in the RB DR thread that his MP resonaters burnt out within a few months, so Id be wary in telling people the RB is the same as the Mazsport midpipe

 

They're definitely not the SAME pipe, just very similar.

The resonators that Scott used were made by RB. (contrary to what he told people)
RB has slightly redesigned them for their pipe and of course the RB unit actually fits unlike Scott's pipe that needed spacers or some other nonsense.

Quality wise, there will be a difference but SOUND wise, they should be very similar.


Ross: the resonator that burnt up was on an actual Racing Beat pipe or on a Mazsport? I know on the Mazsport pipe, it's not all that uncommon...

 

Get an RB dual resonated midpipe and also a Davesport 100 cpi high flow cat converter, then have a muffler shop replace the front resonator with the cat, you will make the same power, no CEL, be legal, and quiet all in one shot


http://www.racingbeat.com/resultset....rtnumber=16221

http://www.davesport.com/cgi-bin/davesport/DCAT100.html



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Team, weren't you an HJS user?
How are those catalyzers? HJS is pretty expensive and for some folks here it may not be the best choice.
Thanks!

 

swoope and a few others are using it, not aware that they've had any issues

I am still using HJS katalysers and believe they're the best option for turbo and racing, but as you mentioned the cost is well beyond what most people are willing to spend, the latest one cost over a grand shipped but it's rated for up to 500 hp

at $138 for the Davesport 100 cpi metallic cat converter there's absolutely no excuse to not be emissions legal on the street, there will always be a few irresponsible lamers though ...



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Yes it was the second wave of RB midpipes that went out

 

that's a hell of a suggestion Team, thanks.

 

The sound levels are somewhere in the BHR Midpipe thread and I'll have to dig them out. 5 minutes of searching didn't turn up much as there's a lot of information jammed in there.

The DB levels between the BHR pipe and a totally stock RX8 were not more than 2 or 3 DB apart. The cat-back being used will have some influence on the sound output and perhaps more than other mid-pipes being used.

 

that statement is rather vague. What exactly are you saying? rb is shipping midpipes that had issues?

 

I think he means that a midpipe that was part of the 2nd batch built ended up with issues.

 

I love my RB Dual Resonated midpipe.
Coupled with the Mazdaspeed exhaust it is pretty aggressive though.

 

Good infos Team! I'll probably try it at some point to see if i can gut it

 

Swoope's car has some miles on it, Track, HWY, and his pipe is still good.... Although he was using the larger RB silencer not the one in current production.

Def best combo out there.

 

My Mazsport D/R sound stock from idle to redline. The only real way to know that its on the car is the smell

 

While I don't agree that the MazSport sounds like stock, it is one of the quietest mid-pipes I've heard.
But I would recommend the new D/R Racing Beat mid-pipe.
Side-by-side its difficult to tell the difference between the RB and the MazSport mid-pipe.
Plus the RB has better fitment and doesn't require you to leave the two cross members off.

 

So I guess so far it's still the same as my assumption, the RB DR, Mazsport DR and BHR DR. Seems like midpipe selection is quite easy.