Installing RPM exhaust

[Tuned forks]

Hey guys, for those of you that have installed RPM's exhaust, how long did the conversion take?  I'd like to know how much time to set aside.  Thank you in advance.

Joe

[Urban_Legend]

Assuming you have the old exhaust removed, allow 30 mins to an hour. Don't forget to swap the exhaust head nuts over to the rpm supplied items. Hardest part is getting the headers in the right spot. Wipe them over with wax/grease remover before you start the bike, to stop fingerprints leaving horrible Mark's on the pipes.

Mark

[aviationfred]

The RPM exhaust is about the easiest exhaust to install that you can think of. The short exhaust spigots seal really well without having any weight from the rest of the exhaust there when torqueing the exhaust stud nuts. The rest of the exhaust slides together easily. Install the springs, wipe down the whole system with a grease removing type of cleaner and you are all set.


Fred

[56 CHEVY]

To those that have the RPM exhaust, what have you done about the bumper for the center stand? My FJ came with Yoshimura slip ons and the left side had a place that the center stand rested against when it was up. Now with the RPM exhaust, the stand hangs below the pipe and bangs into it when I go over bumps.

[copper]

Changing the worn out center stand spring solved it for me.

[Tuned forks]

I spoke with Robert and that's exactly what he recommended for that problem.  He also said there should be no reason for changing the studs unless they are not stock already.  I'm really looking forward to digging into this project this afternoon.

Joe

[T Legg]

If your center stand has worn bolts and elongated holes it will still be loose and wobble around even with a new spring.I had to use a shorter spring to hold my kickstand tight untill I replaced the bolts and kickstand.

[ribbert]

Changing the worn out center stand spring solved it for me.

I removed the stand and loose fit it when I need it.

[Tuned forks]

I got the exhaust installed last night with barely enough daylight to work with.  As most guys have indicated, it's a relatively easy install.  Might have taken me as much time to remove the old exhaust.  What I would like to comment on is the exhaust tone.  What an AWESOME sound.  When I came home from Sears Point, even my neighbor came out of his garage just to check it out.  The sound reminds me of my buddy's Duc with Akrapovic pipes.  Really deep, throaty note.  Totally unlike Japanese motorcycle sound.  Furthermore, on decel it makes the most fantastic snap, crackle, pop sounds.  Big kudos to Randy for designing a system that actually fits without compromise and sounds great!

Joe

[Urban_Legend]

Like this?
https://youtu.be/25F7_T66S_8

[Tuned forks]

Pretty much but seems to growl more in person.

Joe

[FJ1200W]

I got the exhaust installed last night with barely enough daylight to work with.  As most guys have indicated, it's a relatively easy install.  Might have taken me as much time to remove the old exhaust.  What I would like to comment on is the exhaust tone.  What an AWESOME sound.  When I came home from Sears Point, even my neighbor came out of his garage just to check it out.  The sound reminds me of my buddy's Duc with Akrapovic pipes.  Really deep, throaty note.  Totally unlike Japanese motorcycle sound.  Furthermore, on decel it makes the most fantastic snap, crackle, pop sounds.  Big kudos to Randy for designing a system that actually fits without compromise and sounds great!

Joe

I thought he reverse engineered it from a Akro pipe?

Anyone have the dyno charts comparing HP and torque to stock?

[racerrad8]

I thought he reverse engineered it from a Akro pipe?

Anyone have the dyno charts comparing HP and torque to stock?

No, the RPM system was designed by using several our forum members bikes to ensure proper fit, finish and function.

No copying from anyone else. There is more than a year of development time in the RPM system.

After installing many other aftermarket exhaust systems, I knew I needed to build something better.

Your horsepower question has been asked and answered a couple of times already. I do not have a local dyno shop that will work with me to test the improvements.

I do not believe anyone else has either, at least no one has told me they have.

Maybe someday I can justify a dyno and be able to comparison testing. Not only of the RPM exhaust, but the air filters and other power enhancers.

I will be interested to see your comparison numbers for the stock system to your Yoshi.

Randy - RPM

[Pat Conlon]

In the old days, it was common for a FJ to get ~120-125 rwhp with a header, pods, jetting and a timing bump.
About 15 - 20 rwhp above stock.

[ZOA NOM]

Nowadays, it's easier to just install the RPM filter adapter (6hp), the RPM risers (4hp), and finally, the smoked tail light cover (5hp).