March 18, 2025, 06:49:12 PM

Author Topic: FS: RB Dual Tip Muffler  (Read 6671 times)

Offline hardbodeez

FS: RB Dual Tip Muffler
« on: July 25, 2017, 02:31:16 PM »
For sale is my Racing Beat Dual Tip Muffler.

 Anyone who knows this muffler understands that this is the most quiet, 3", straight-through muffler available for our cars.

 This muffler has low mileage (>10,000), and was only used in good weather (didn't see any rain). Only this muffler (what you see in pictures) is included.

 Price is $350 + shipping.

 PLEASE PM ME IF INTERESTED.

Offline atli126

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Re: FS: RB Dual Tip Muffler
« Reply #1 on: July 25, 2017, 02:47:07 PM »
for fd I guess?
-Bret
87 RX7 5.3/t56 TII Check it out >>>>http://www.502streetscene.net/forum/showthread.php?t=181938&page=4

"no one ever said it would be cheap and easy, they just said it would be worth it"

"Whatever you do, don't lose your passion. Without it who are you?" -Me

Offline hardbodeez

Re: FS: RB Dual Tip Muffler
« Reply #2 on: July 25, 2017, 02:49:40 PM »
Yes sorry for FD.

Offline wickedrx7

Re: FS: RB Dual Tip Muffler
« Reply #3 on: July 25, 2017, 03:16:50 PM »
Good deal! These usually go for over $400 on the club.

1993 Touring, 2012 L99, T-56, Ronnin 8.8, Ohlins, Speedhut, Samberg and lots of custom parts
Build Thread - http://www.norotors.com/index.php?topic=19354.0
Pictures - www.flikr.com/wickedrx7

Offline Tictakman

Re: FS: RB Dual Tip Muffler
« Reply #4 on: July 25, 2017, 09:11:04 PM »
Good deal! These usually go for over $400 on the club.


Its not the whole cat back...

Offline gnx7

Re: FS: RB Dual Tip Muffler
« Reply #5 on: July 26, 2017, 01:45:18 AM »
That is in excellent condition.... and I have approached Racing Beat to just sell the muffler portion without success..... gotta pay to play!

I have this on the LS9 turbo car and it is crazy quiet..... I use an open cutout to bypass it when racing.  On the street it sounds like a kitten thru this!
'93 FD: 441ci/AllPro LS7 heads/intake en route, T56 Mag, 8.8" IRS, HolleyHP, DavisTechTC 10.32@137mph cats/full exhaust. 165mph 1/2 mile (old LS7)
'93 FD LS9 turbo, T56 Mag, Samberg 8.8" solid axle, 9.35@163mph 197mph 1/2 mile
`69 Chevelle: alum 5.3, GTS76 turbo, ChiseledPerf A/W, T56 Magnum,Ford 35 spline 9".CTS-V interior http://www.norotors.com/index.php?topic=18234.0
old yellar....440rwhp/FD sold but not forgotten: http://www.ponycars.net/scc.htm
I sell new T56 Magnums/McLeod clutch/T56 rebuild kits/Holley EFI/FIC injectors and all BrianTooleyRacing parts.  norcalmotorsport@gmail.com

Offline hardbodeez

Re: FS: RB Dual Tip Muffler
« Reply #6 on: July 26, 2017, 02:46:14 PM »
That is in excellent condition.... and I have approached Racing Beat to just sell the muffler portion without success..... gotta pay to play!

I have this on the LS9 turbo car and it is crazy quiet..... I use an open cutout to bypass it when racing.  On the street it sounds like a kitten thru this!

Mark understands how well this muffler performs.  I've tried many 3" mufflers on this vehicle since 2003 and nothing performs as well while being so quiet.


Offline wickedrx7

Re: FS: RB Dual Tip Muffler
« Reply #7 on: July 26, 2017, 03:10:00 PM »
That is in excellent condition.... and I have approached Racing Beat to just sell the muffler portion without success..... gotta pay to play!

I have this on the LS9 turbo car and it is crazy quiet..... I use an open cutout to bypass it when racing.  On the street it sounds like a kitten thru this!

Mark- have you ever dyno'd with the muffler vs cutout? I'm wondering how much power the muffle is killing... is it noticeable?

1993 Touring, 2012 L99, T-56, Ronnin 8.8, Ohlins, Speedhut, Samberg and lots of custom parts
Build Thread - http://www.norotors.com/index.php?topic=19354.0
Pictures - www.flikr.com/wickedrx7

Offline largeorangefont

Re: FS: RB Dual Tip Muffler
« Reply #8 on: July 26, 2017, 07:57:22 PM »
That is in excellent condition.... and I have approached Racing Beat to just sell the muffler portion without success..... gotta pay to play!

I have this on the LS9 turbo car and it is crazy quiet..... I use an open cutout to bypass it when racing.  On the street it sounds like a kitten thru this!

Mark- have you ever dyno'd with the muffler vs cutout? I'm wondering how much power the muffle is killing... is it noticeable?


It is killing a lot of power. All the Racing Beat mufflers kill power, even in rotary applications. More power than a stock system certainly, but it will be down on power a lot compared to a straight through muffler.
Quote from: cool
Sell it to spacevomit.  He'll finish it.

Offline hardbodeez

Re: FS: RB Dual Tip Muffler
« Reply #9 on: July 26, 2017, 08:15:54 PM »
Bullshit.  It is a straight through muffler that will 'Y' into the twin tips.

I've had this on a 402 with a turbo, and with a F1A and made over 800 to the wheels.  Throttle response was excellent, and still boosted over 20psi.  I've had it on a dual into 3", and 4" to 3-1/2" to 3".  The limit of the 3" pipe is what kills power, and/or bends that are short radius/kinked/or smaller than 3".


The muffler is completely at the back of the exhaust where the gas is the coolest, and restriction is minimal.  Yes a completely 3" straight-through exhaust would make more power, but minimal gains, and this muffler is way more quiet with no drone.  Don't bore me with bs numbers you have seen on a dyno.

This site, as well as RX7Club, has become absolutely retarded when it comes to people invading someone's sale thread.  Let the person sell his goods and get lost.

If you need to know what 17 different people think of a product, don't buy it, just move on.



Offline largeorangefont

Re: FS: RB Dual Tip Muffler
« Reply #10 on: July 26, 2017, 08:27:55 PM »
Bullshit.  It is a straight through muffler that will 'Y' into the twin tips.

I've had this on a 402 with a turbo, and with a F1A and made over 800 to the wheels.  Throttle response was excellent, and still boosted over 20psi.  I've had it on a dual into 3", and 4" to 3-1/2" to 3".  The limit of the 3" pipe is what kills power, and/or bends that are short radius/kinked/or smaller than 3".


The muffler is completely at the back of the exhaust where the gas is the coolest, and restriction is minimal.  Yes a completely 3" straight-through exhaust would make more power, but minimal gains, and this muffler is way more quiet with no drone.  Don't bore me with bs numbers you have seen on a dyno.

This site, as well as RX7Club, has become absolutely retarded when it comes to people invading someone's sale thread.  Let the person sell his goods and get lost.

If you need to know what 17 different people think of a product, don't buy it, just move on.




I would not classify a dual tip y with reduced core size as a "straight through" although by definition of a straight path through the muffler... sure.

No one has interfered negatively at all and no one said your car was not fast or didn't make power snowflake. The quieter a muffler the more restrictive it is, almost universally. And no, the pipe itself is not the main restriction. I'd love for you to explain how a restriction (muffler) at the cold end of an exhaust flows better than the 3 inch pipe itself.

To make a car more driveable and enjoyable, this is a great muffler. It will not make the most power, if that is your thing.
« Last Edit: July 26, 2017, 08:38:42 PM by largeorangefont »
Quote from: cool
Sell it to spacevomit.  He'll finish it.

Offline wickedrx7

Re: FS: RB Dual Tip Muffler
« Reply #11 on: July 26, 2017, 09:17:24 PM »
Bullshit.  It is a straight through muffler that will 'Y' into the twin tips.

I've had this on a 402 with a turbo, and with a F1A and made over 800 to the wheels.  Throttle response was excellent, and still boosted over 20psi.  I've had it on a dual into 3", and 4" to 3-1/2" to 3".  The limit of the 3" pipe is what kills power, and/or bends that are short radius/kinked/or smaller than 3".


The muffler is completely at the back of the exhaust where the gas is the coolest, and restriction is minimal.  Yes a completely 3" straight-through exhaust would make more power, but minimal gains, and this muffler is way more quiet with no drone.  Don't bore me with bs numbers you have seen on a dyno.

This site, as well as RX7Club, has become absolutely retarded when it comes to people invading someone's sale thread.  Let the person sell his goods and get lost.

If you need to know what 17 different people think of a product, don't buy it, just move on.




Easy buddy, I didn't mean to piss in your cherios. Delete our posts if you don't want them in your thread. Whatever. I was asking a specific question to mark because I was curious how much power difference between the cutout vs through the exhaust. The reason for my question is to put a real world number to it. If you don't think there will be a power difference between this and a cutout or straight through muffler, you are crazy. The debate is how much.


1993 Touring, 2012 L99, T-56, Ronnin 8.8, Ohlins, Speedhut, Samberg and lots of custom parts
Build Thread - http://www.norotors.com/index.php?topic=19354.0
Pictures - www.flikr.com/wickedrx7

Offline hardbodeez

Re: FS: RB Dual Tip Muffler
« Reply #12 on: July 26, 2017, 09:38:05 PM »
It's not that I don't there is a power difference, I think the difference on the street is very minimal.  Barely noticeable on a mainly driven street car.

We are using V8s.  For real numbers, use a bigger exhaust period, and then you wouldn't use this muffler.  So yes you would gain more power with a larger exhaust (depending on cubic inch), and the gains between a straight through muffler and this muffler is minimal especially on a NA LS motor.  And then tell me about your drone that you're trying to fix with your straight muffler that you just gained 15hp with.

You asked about this muffler compared to a cutout.  Ok, where is the cutout placed?  Same spot as where the muffler starts?  Or are we comparing a full exhaust with this muffler to a cutout at the header?


Offline hardbodeez

Re: FS: RB Dual Tip Muffler
« Reply #13 on: July 26, 2017, 09:45:31 PM »
Bullshit.  It is a straight through muffler that will 'Y' into the twin tips.

I've had this on a 402 with a turbo, and with a F1A and made over 800 to the wheels.  Throttle response was excellent, and still boosted over 20psi.  I've had it on a dual into 3", and 4" to 3-1/2" to 3".  The limit of the 3" pipe is what kills power, and/or bends that are short radius/kinked/or smaller than 3".


The muffler is completely at the back of the exhaust where the gas is the coolest, and restriction is minimal.  Yes a completely 3" straight-through exhaust would make more power, but minimal gains, and this muffler is way more quiet with no drone.  Don't bore me with bs numbers you have seen on a dyno.

This site, as well as RX7Club, has become absolutely retarded when it comes to people invading someone's sale thread.  Let the person sell his goods and get lost.

If you need to know what 17 different people think of a product, don't buy it, just move on.




I would not classify a dual tip y with reduced core size as a "straight through" although by definition of a straight path through the muffler... sure.

No one has interfered negatively at all and no one said your car was not fast or didn't make power snowflake. The quieter a muffler the more restrictive it is, almost universally. And no, the pipe itself is not the main restriction. I'd love for you to explain how a restriction (muffler) at the cold end of an exhaust flows better than the 3 inch pipe itself.

To make a car more driveable and enjoyable, this is a great muffler. It will not make the most power, if that is your thing.

Correct.  It will not make the most power, nowhere near make the least power, and it is a great muffler.

It will make the car drivable and enjoyable, and it looks nice because it's made for this car vs a universal muffler.

Oh yes, and it will not drone, so no need to add a resonator or any other type of add-on.




Offline largeorangefont

Re: FS: RB Dual Tip Muffler
« Reply #14 on: July 26, 2017, 09:46:40 PM »
Like you can use 800 WHP on the street anyway. You won't miss 50 HP. I am unsure who you are arguing with because I agree with you. Put this on, you'll be down 20-40 HP depending on your setup and have a car that is more livable and more pleasant to be in.

These are not performance mufflers for the level of power most V8 cars make. These are performance mufflers for a car made 20 years ago making 250HP. There is a difference. A stock 5.3 truck LS makes 300 HP, and a single 3 inch is considered "adequate" for performance in that application.
« Last Edit: July 26, 2017, 09:52:39 PM by largeorangefont »
Quote from: cool
Sell it to spacevomit.  He'll finish it.