www.CVOHARLEY.com

Please login or register.

Login with username, password and session length
Advanced search  

Author Topic: Paul Yaffe 4" Supertrapp Kerker stout slip-ons  (Read 2635 times)

0 Members and 1 Guest are viewing this topic.

Tyson

  • Newbie
  • *
  • Offline Offline
  • Posts: 15

    • CVO1: 2012 SESG
Paul Yaffe 4" Supertrapp Kerker stout slip-ons
« on: September 14, 2011, 12:16:32 AM »

I was just wondering if anybody has tried these out. Here is what they are claiming "SuperTrapp Stout Slip-Ons provide a heavy, broad spread power curve right from idle w/ a 9.3 (16%) hp and 10.5 (14%) torque gain over stock (measured on a stock 2010 FLH)".
Here is a video about them

Logged

uscanuck

  • Newbie
  • *
  • Offline Offline
  • Posts: 44
Re: Paul Yaffe 4" Supertrapp Kerker stout slip-ons
« Reply #1 on: September 14, 2011, 10:08:00 AM »

Nice mufflers but $650 for a pair of slip ons?

I'd go with the Fullsac cores for either the CVO or stock mufflers.  Likely get the same performance or better at 1/3 or less the cost.  Or even the Klock Werks SS mufflers at around $300.
Logged

AZ Sparky

  • Full CVO Member
  • ***
  • Offline Offline
  • Posts: 136

    • CVO1: 2011 FLHXSE2 in Kryptonite/Black
Re: Paul Yaffe 4" Supertrapp Kerker stout slip-ons
« Reply #2 on: September 14, 2011, 12:43:50 PM »

So a pair of mufflers are directly responsible for increasing HP/Torque 9.3/10.5?
Without any other mods?
I'm not saying it's impossible but you can color me skeptical...
Logged
Sparky

Tyson

  • Newbie
  • *
  • Offline Offline
  • Posts: 15

    • CVO1: 2012 SESG
Re: Paul Yaffe 4" Supertrapp Kerker stout slip-ons
« Reply #3 on: September 15, 2011, 12:47:28 AM »

I realize these are not cheap but they don't seem to be any higher than Rhineharts. I was hoping someone has tried these or knows someone who has. If they even made 5 or 6 hp and had a good sound to them they might be a good choice. Supertrapp sells them for less but Yaffe says that he modifies his making them sound better. I don't know, I'm just trying to keep an open mind and make an educated choice on a exhaust system. Instead of just jumping into whatever is the common choice.
Logged

MUFFMAN

  • 1K CVO Member
  • *
  • Offline Offline
  • Posts: 2100
  • FLHRSEI.ORG

    • CVO1: 07 FLHTUSE2
    • CVO2: 09 FLTRSE3
Re: Paul Yaffe 4" Supertrapp Kerker stout slip-ons
« Reply #4 on: September 15, 2011, 05:06:56 AM »

Don't know about their performance but I heard them recently on a bike.....These things are loud.
Logged

Tyson

  • Newbie
  • *
  • Offline Offline
  • Posts: 15

    • CVO1: 2012 SESG
Re: Paul Yaffe 4" Supertrapp Kerker stout slip-ons
« Reply #5 on: September 15, 2011, 11:04:07 PM »

How loud are we talking? How would you compare them to Rhinehart's or CFR's
Logged

MUFFMAN

  • 1K CVO Member
  • *
  • Offline Offline
  • Posts: 2100
  • FLHRSEI.ORG

    • CVO1: 07 FLHTUSE2
    • CVO2: 09 FLTRSE3
Re: Paul Yaffe 4" Supertrapp Kerker stout slip-ons
« Reply #6 on: September 16, 2011, 04:37:38 AM »

Never heard the CFR's but in my  opinion louder than Rhineharts. I only heard them once & they drowned out the other pipes. Sounded great @ idle. Apparently once PYO gets hold of them they pull out all the packing. I would like to hear a set with the packing still intact.
Logged

FUGLY

  • Junior CVO Member
  • **
  • Offline Offline
  • Posts: 68
Re: Paul Yaffe 4" Supertrapp Kerker stout slip-ons
« Reply #7 on: October 17, 2012, 09:47:45 PM »

How loud are we talking? How would you compare them to Rhinehart's or CFR's
I have kerker stouts with the cat still in the header and it is only loud when on the gas, at cruising speed they are almost as quiet as stock mufflers..way quieter then cfr's and rhineharts
Logged

Rio

  • 2011 CVO Road Glide Ultra Rio Ember/Black
  • 1K CVO Member
  • *
  • Offline Offline
  • Posts: 1325
  • Nick
Re: Paul Yaffe 4" Supertrapp Kerker stout slip-ons
« Reply #8 on: March 22, 2013, 12:14:06 PM »

I realize these are not cheap but they don't seem to be any higher than Rhineharts. I was hoping someone has tried these or knows someone who has. If they even made 5 or 6 hp and had a good sound to them they might be a good choice. Supertrapp sells them for less but Yaffe says that he modifies his making them sound better. I don't know, I'm just trying to keep an open mind and make an educated choice on a exhaust system. Instead of just jumping into whatever is the common choice.

I say BS on the part of him modifing the mufflers to get them to sound better outside of maybe removing the packing, that would alter the muffler, void the warranty, and also potentially create liabilities for the manufacturer.  Probably his way of getting his price versus competitive pricing you may find elsewhere?
Logged
Full Sac X-Pipe,
Full Sac 2.25 cores
TTS Mastertune
Progressive Monotubes
Progressive 94 Shocks
Andrews 30t sprocket
Wind Splitter Windscreen
_____________________

Rio

  • 2011 CVO Road Glide Ultra Rio Ember/Black
  • 1K CVO Member
  • *
  • Offline Offline
  • Posts: 1325
  • Nick
Re: Paul Yaffe 4" Supertrapp Kerker stout slip-ons
« Reply #9 on: March 23, 2013, 09:46:25 AM »

FYI.      $568.00 Kerker Stouts, brand new, free shipping.  E-Bay Retailer
Logged
Full Sac X-Pipe,
Full Sac 2.25 cores
TTS Mastertune
Progressive Monotubes
Progressive 94 Shocks
Andrews 30t sprocket
Wind Splitter Windscreen
_____________________

Dead_Reckoning

  • Elite CVO Member
  • *****
  • Offline Offline
  • Posts: 594
  • 03 SERK
Re: Paul Yaffe 4" Supertrapp Kerker stout slip-ons
« Reply #10 on: March 23, 2013, 01:13:04 PM »

@ OP

Have you considered the SuperTrapp 4" Stout Slip-Ons
Pretty much like the Kirker 4" Stouts, SuperTrapp sells both versions.
At 95.6 dB @ 2,000 rpm, or 2.4dB over stock. SuperTrapp Stouts are SAE-J2825 sound compliant.
http://www.supertrapp.com/product_sections/cat.asp?CatID=85

The Kirker Stout 4" Stouts are Not SAE-J2825 sound compliant., 97 dB at 2,000
This Paul Yaffee Video says the he pulls out the packing
http://forums.supertrapp.com/showthread.php?1446-V-Twin-SuperTrapp-Stout-4-quot-Slip-Ons-for-Baggers

This Video should be the V-Twin: SuperTrapp Stout 4" Slip-Ons for Baggers
Video
http://forums.supertrapp.com/showthread.php?1446-V-Twin-SuperTrapp-Stout-4-quot-Slip-Ons-for-Baggers - Without the packing pulled out.

Have you tried out Direct Cycle Parts
SuperTrapp Stout 4" Slip-Ons
http://www.directcycleparts.com/exhaust-supertrapp-stout-slip-supertrapp-stout-slip-touring-p-5787.html
Price = $526.95
Logged
Government is best which governs least.

Power Commander 3 Tuner
Doherty Power PACC with K&N Air Filter
Screamin' EagleĀ® Hydraulic Cam Chain Tensioner and High-Flow Oil Pump
Headwinds 2" Bullet Passing Lights 50w'
Progressive 440HD Shocks & Monotube Fork cartridges
Dual Bulb Halogen Headlamp Kit

Rio

  • 2011 CVO Road Glide Ultra Rio Ember/Black
  • 1K CVO Member
  • *
  • Offline Offline
  • Posts: 1325
  • Nick
Re: Paul Yaffe 4" Supertrapp Kerker stout slip-ons
« Reply #11 on: March 23, 2013, 04:10:10 PM »

@ OP

Have you considered the SuperTrapp 4" Stout Slip-Ons
Pretty much like the Kirker 4" Stouts, SuperTrapp sells both versions.
At 95.6 dB @ 2,000 rpm, or 2.4dB over stock. SuperTrapp Stouts are SAE-J2825 sound compliant.
http://www.supertrapp.com/product_sections/cat.asp?CatID=85

The Kirker Stout 4" Stouts are Not SAE-J2825 sound compliant., 97 dB at 2,000
This Paul Yaffee Video says the he pulls out the packing
http://forums.supertrapp.com/showthread.php?1446-V-Twin-SuperTrapp-Stout-4-quot-Slip-Ons-for-Baggers
Yep, I'm considering the Kerkers, I am looking at those over the CFR's..I have no noise level issues here in Michigan.

Thanks for the info!
This Video should be the V-Twin: SuperTrapp Stout 4" Slip-Ons for Baggers
Video
http://forums.supertrapp.com/showthread.php?1446-V-Twin-SuperTrapp-Stout-4-quot-Slip-Ons-for-Baggers - Without the packing pulled out.

Have you tried out Direct Cycle Parts
SuperTrapp Stout 4" Slip-Ons
http://www.directcycleparts.com/exhaust-supertrapp-stout-slip-supertrapp-stout-slip-touring-p-5787.html
Price = $526.95
Logged
Full Sac X-Pipe,
Full Sac 2.25 cores
TTS Mastertune
Progressive Monotubes
Progressive 94 Shocks
Andrews 30t sprocket
Wind Splitter Windscreen
_____________________

Montanakid

  • Full CVO Member
  • ***
  • Offline Offline
  • Posts: 205
Re: Paul Yaffe 4" Supertrapp Kerker stout slip-ons
« Reply #12 on: March 24, 2013, 01:18:50 AM »

I was under the impression that if you install the right muffler bearings you can get the horse power gains mentioned and also maintain the EPA noise laws. :pineapple: :pepper: :jalapeno: :2vrolijk_21:
Logged
BUB 7 TDX System
SE 259E cams
SE Pro Twin High Comp Pistons
Hawg Wired 6 Pack System
Progressive Monotubes Front
Progressive 440's Rear

Atomic Shark

  • Newbie
  • *
  • Offline Offline
  • Posts: 8
Re: Paul Yaffe 4" Supertrapp Kerker stout slip-ons
« Reply #13 on: March 24, 2013, 12:51:58 PM »

I have the Kerker Stouts on my CVO now. Mean sounding pipe. Very low growl to them. As of now I still have the cat in. That being said, I really dont know if there is a power gain. I did find this out. If you install these even if you dont change your head pipe, you will need to have your bike tuned. Mine is running a little too lean now and I'm getting a little decell pop and once in a while will backfire and stall while idling in gear. maybe after a tune you will see a gain in power.
Logged
 

Page created in 0.208 seconds with 22 queries.