trashing the collector box, run straight pipes


Information and questions on GL1500 Goldwings (1988-2000)
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Kerry n Cali
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trashing the collector box, run straight pipes

Post by Kerry n Cali »



my collector box is trashed, i know their around $100 if you can find one. My question is, can i run straight pipes from the headers to exhaust?


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RoadRogue
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Re: trashing the collector box, run straight pipes

Post by RoadRogue »

You could but it's going to be LOUD and performance will likely suffer 8-)
Ride safe, Todd
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702scottc
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1990 GL1500 Aspencade (sold)
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Re: trashing the collector box, run straight pipes

Post by 702scottc »

Might hurt your low end power, would run better on top. Probably cost as much to have pipes bent up than just get one on eBay. Would definitely give it a throaty sound.
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CrystalPistol
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Motorcycle: 1997 GL1500SE/'98 Lehman Trike

Re: trashing the collector box, run straight pipes

Post by CrystalPistol »

Kerry,
I sent a link to a thread on another place with pics of how to put HD Mufflers on a GL1500 and there's even a video url in the thread.

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Wasn't so sure about posting a link to the "details" here in the open? :geek:
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offcenter
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Re: trashing the collector box, run straight pipes

Post by offcenter »

I had a set of FLH mufflers on my '76 Wing.
Too loud for me. My wife complained about getting
a headache from the noise after an hour or so.
I found a stock Wing muffler setup to use. Much better.
For me, the quietness of a stock Wing is worth whatever
it costs to replace the system with another stock system.
George in Jersey.
99 Goldwing GL-1500 SE
76 Goldwing Gl-1000
77 Honda CT-90 "Trail 90"
mrchrisbarbour
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Joined: Thu Jan 21, 2021 3:22 pm
Location: Fairway, KS, USA
Motorcycle: 1997 GL1500 Aspencade

Re: trashing the collector box, run straight pipes

Post by mrchrisbarbour »

Where are the details posted on how to do this/put HD pipes on a GW?
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Andy Cote
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Re: trashing the collector box, run straight pipes

Post by Andy Cote »

mrchrisbarbour wrote: Wed Mar 10, 2021 11:22 am Where are the details posted on how to do this/put HD pipes on a GW?
viewtopic.php?f=12&t=4874

This article is for a GL1200 so you will need to update if installing on a GL1500.

Regarding the OP question from years ago, the GL1500C (Valkyrie) does not use a collector box nor a cross over pipe. The three pipes on one bank combine into a collector on that side, back in to one muffler on that side and three tailpipes coming out of the muffler which could as easily have been one. Many Valkyrie exhausts have had the Honda muffler removed and replaced with a common "Cherry Bomb."

http://www.valkyrieriders.com/shoptalk/easymod.htm
http://www.valkyrieriders.com/shoptalk/noteasy.htm
http://www.valkyrieriders.com/shoptalk/jkpacks.htm
http://www.valkyrieriders.com/shoptalk/QEpacks.htm
2015 Goldwing, basic black

Previously: GL1200 standard, GL1200 Interstate, GL1500 Goldwing, GL1500 Valkyrie Standard, 2000 Valkyrie Interstate, many other Hondas
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wingdings
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Location: mells , England, United Kingdom
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Re: trashing the collector box, run straight pipes

Post by wingdings »

Saw your post there here is another solution to your problem -

HONDA GL1500 GL 1500 GOLDWING GOLD WING EXHAUST COLLECTOR STAINLESS STEEL

Buy on Ebay Uk - Ebay Item number is - 141451199710

s-l1600 (13).jpg

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s-l1600 (11).jpg

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s-l300 (1).jpg 1500 exhausts.jpg


If you do get rid of the collector box you may wish to consider rejecting the carbs too !! As changing the exhaust can affect the running of the bike see below -

This Jet Kit Fits Honda GL1500 GOLD WING 88-89. Stage 5 / You get Whats In Photo.

Select the appropriate stage needed. Modifications to the air intake and/or Exhaust system to your motorcycle will change the air/fuel mixture to your carburetors causing a lean running condition.

These kits include a set of two size larger Pilot Jets (#55), a set of four sizes larger main Jets (#168) and two needle shims for each carburetor.

Stage 4 is for motorcycles with lightly modified engines with individual air intakes and baffled aftermarket exhaust system.



Modifications to the air intake and/or Exhaust system to your motorcycle will change the air/fuel mixture to your carburetors causing a lean running condition.

provides Jet Kits to compensate for the lean running condition.

Ebay item number - 292627493953
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hope this helps !!! :lol: :lol: :lol:
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Wingnut95
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Location: British Columbia, Canada
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Re: trashing the collector box, run straight pipes

Post by Wingnut95 »

I blew out one of the pipes on my 1500 and a pair were going to cost me around $900 US. So I installed a set of HD pipes but kept the collector box without any noticeable change in performance. Bike is a bit louder but not extreme and definitely does not sound anything like a Harley.

Part 1 of the video I watched is here and from there you can locate the other 3.


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95 SE
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terryt
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Motorcycle: 1979 gl1000 trike
1989 gl1500 trike
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Re: trashing the collector box, run straight pipes

Post by terryt »

I removed the collector box when i triked my 1500 built my own system with out a collector or link pipe. the performance or fuel is fine. acceleration is good and i get about 37mpg it a bit loud if i give it some throttle when pulling away other than that no problems


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