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Old 01-07-2010, 09:32 PM   #1 (permalink)
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2-1 exhaust rb racing vs thunder header

i know out of alot of know exhausts thunder header is 1 of the best

but i been reading on the rb racing lsr pipe... and they claim to even make more power then the thunder header..


so i guess i wanna know what people think of the rb pipe for the dresser and thunder header.. maybe people who have a build close to mine with maybe head work or cams with this pipe chime in and let me know what your making power wise.. thnks
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Old 01-08-2010, 07:03 PM   #2 (permalink)
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not taking anything away from this website, but sometimes its like a rb exhaust/woods cam infomercial, thats the cats meow to everyone, so your gonna get a bunch of people who hate this, but love that exhaust, in reality, most 2 into 1 systems are probably compariable, espically t-header and rb. I have yet for someone to post back to back dyno runs to show any major difference in hp/tq between the two, I personally think the t-header sounds much better, but on the other hand the quality of the rb exhaust is heads above a thunderheader. so if its sheer numbers game your loooking at, there probably isnt a clear winner, if its sound, then listen to both in person and go from there. hope that helps somewhat.
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Old 01-08-2010, 07:16 PM   #3 (permalink)
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Unlike Thunderheader, RB Racing makes several different pipes. So to ask for a comparison of a Thunderheader to an RB Racing pipe is almost like asking to compare a Mustang to a Chevy. There is a bit of information missing.

If you have read the RB Racing website you know there are at least three different 2-1 pipes: the ProStock, Black Hole, and their new Pro Stock Spider. There may be others that I have missed.
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Old 01-08-2010, 07:23 PM   #4 (permalink)
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I have an R&B LSR and am very happy with it. I think it sounds great! Loud, but not too load (like a thunderheader), great throaty note, with a hint of tannin. LOL.... sounds real good.

Excellent quality, looks really smooth with a softale...

As far as performance goes, I can't imagine I could throw another pipe on and say WOW! Son of a bitch! what a difference!!! But what do I know... I'm sure there's a fatcat owner out there that will challenge that.... CRAIG?? My torque curve is dipless and shows a lot of area under the curve, which is indicative of a well performing pipe... I think...All in all, a great pipe.

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Old 01-09-2010, 12:00 AM   #5 (permalink)
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I went with the RB prostock because of the sound ,I heard clips from all of the top 2-1 pipes before deciding where to drop my $800.00..The other pipes mentioned, IMO, did not compare to the hard hitting rumble of this pipe and best of all it still sounds like a V-twin vs a mildly built SBC..Last but not least I have not seen another one in my riding area since buying it a year ago,I like to be different..And like econner stated they have several different models to choose from, and if you don't like LOUD I wouldn't recommend it.
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Old 01-10-2010, 12:58 AM   #6 (permalink)
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Quote:
Originally Posted by DURWOOD View Post
I went with the RB prostock because of the sound ,I heard clips from all of the top 2-1 pipes before deciding where to drop my $800.00..The other pipes mentioned, IMO, did not compare to the hard hitting rumble of this pipe and best of all it still sounds like a V-twin vs a mildly built SBC..Last but not least I have not seen another one in my riding area since buying it a year ago,I like to be different..And like econner stated they have several different models to choose from, and if you don't like LOUD I wouldn't recommend it.
Actually if you want fairly quiet,go wth a Blackhole,a little louder than the blackhole, but quieter than a LSR,then choose the spider.
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Old 01-11-2010, 06:55 PM   #7 (permalink)
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ill probably go with the lsr i like loud.. i been thinking on the lsr for my bike.. just wanted opinions from people who may have run bolth pipes or one or the other.. i have ran a couple of bikes with the thunder header and love the sound of it.. but i like the sounds of the rb pipe to.. damn choices
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14" bagger apes
99 flhtc 103"
44mm sc carb kit
sc intake kit
vance and hinse ho pro pipe 2-1
103+ heads p&p by hoban
with matching pistons
s&s 585 gear drives
sc pro stroker flywheel
tc88 adj ignition
estimated at 135hp/135tq
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Old 01-11-2010, 11:54 PM   #8 (permalink)
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I have run both and the RB pipe is far better quality. the exhaust gaskets alone are better then any other i have seen. They are billet aluminum and provide a great seal with no distortion. I ran an RB LSR for about 50,000 miles on my last bike. The only draw back is the long wait getting to your door. In my opinion it is worth it. Thunder header on the other hand is a good pipe till it starts to crack and fall apart on you. For my $$$ I would go for the RB pipe.
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Old 01-12-2010, 12:45 AM   #9 (permalink)
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Quote:
Originally Posted by 1fast2liter View Post
ill probably go with the lsr i like loud.. i been thinking on the lsr for my bike.. just wanted opinions from people who may have run bolth pipes or one or the other.. i have ran a couple of bikes with the thunder header and love the sound of it.. but i like the sounds of the rb pipe to.. damn choices
Are you going with the baffled or the prostock??
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Old 01-18-2010, 12:44 AM   #10 (permalink)
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not sure.. i like the loudness of the thunderheader.. i dont want quiet so probably go with the lsr....
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14" bagger apes
99 flhtc 103"
44mm sc carb kit
sc intake kit
vance and hinse ho pro pipe 2-1
103+ heads p&p by hoban
with matching pistons
s&s 585 gear drives
sc pro stroker flywheel
tc88 adj ignition
estimated at 135hp/135tq
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Old 01-19-2010, 01:49 PM   #11 (permalink)
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LSR is a much DEEPER and stronger sound than the T-header. I ran the V&H Outlaw(also way deeper and stronger), but my second choice was the LSR(ordered one for my shovel). I ran T-headers for years on my bikes and my bro's scoots. Hell my wife is runnin' a T-header on her fxdl while its mostly stock. once we start on the motor we will see what pipe fits the build best. Quality? Both V&H and RB are superior, but i have never had any major issues with any T-header.
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Old 01-19-2010, 03:47 PM   #12 (permalink)
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Quote:
Originally Posted by 1fast2liter View Post
i know out of alot of know exhausts thunder header is 1 of the best

but i been reading on the rb racing lsr pipe... and they claim to even make more power then the thunder header..


so i guess i wanna know what people think of the rb pipe for the dresser and thunder header.. maybe people who have a build close to mine with maybe head work or cams with this pipe chime in and let me know what your making power wise.. thnks
Doesn't really matter just do the eenie mynie moe choosing kind of thing Lol! Pick the one you like the best , whether its sound or looks ,the power thing will be a toss up. Getting a T-Header is way easier and I have heard both side by side and how your motor is built will have more of an effect on the sound than which exhaust you choose.
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Old 01-25-2010, 08:07 PM   #13 (permalink)
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i agree that most 2into1s are so close that you will never feel the differance.I for one love the sound of thunder headers,and most my nieghbors will tell you they canbe loud if you hammer the throttle.I can ride and keep theme reasonable also(rare).I will admit the quality of there finish isn't the best.I just built a 3 step main pipe to fit the thunder header muffler and so far love it.As for finish Its about to get ceramic coating by HPC.
I f you can find fw types at local bar ask owners what they think and listen to them.everyone has differant idea od what sounds great means.
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Old 01-25-2010, 08:24 PM   #14 (permalink)
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80,000 or more with a rbracing lsr pipe. One of my all time favorites.

Set 2 records in 2009 on the Bonneville salt flats with a 1 3/4" set hooked to a 124" twin cam, 2004 Dyna.

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Old 01-25-2010, 08:43 PM   #15 (permalink)
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I felt the same way...

Quote:
i agree that most 2into1s are so close that you will never feel the differance
i felt the same way 'til I pulled the t-header off my flht and put the V&H outlaw pipe. Def' seat of the pants difference. RB's LSR(non prostock) is the same way. Just wish I had the scratch do dyno the three pipes back 2 back!
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Wood lifters & rocker supports
R&R bottom end DT oil pump. S&S 640G cams
Torque Inc. JWPERF.com 110 heads
DaytonaTwinTec ignition
Baker KKK/4+1 pan
RB Racing 2" 2into1Blackhole
Smith Bros. pushrods
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