Motorcycle.com

seruzawa · 08-10-2009, 01:39 PM

I ran across this interesting article from Oz.

Honda Fireblade - Muffler comparison - MCNEWS.COM.AU

Notice that half of the aftermarket cans result in less than stock hp and that they rate the stock muffler better than most of the accessories.

The moral? Don't alter your system unless you are willing to spend the $ on remapping/rejetting. Even the best pipe only gave an negligible increase of 3.5 hp = less than 2%.. and only at full redline. You decide if it's worth several hundred simoleans.

This is why a chuckle at people with loud pipes that obviously have not been rejetted.

Kenneth_Moore · 08-10-2009, 01:47 PM

Holy crap, it's worse that I thought. Not only do they not improve anything, in most cases they made less HP and torque.

Good post, very interesting study.

So, be honest and say to yourself and friends: I'm buying the exhaust because I like the sound and it looks good. Nothing wrong with that!

Buzglyd · 08-10-2009, 02:21 PM

The fancy exhaust is called the Obamapovic. It cost a lot of money and offers no benefit whatsoever.

seruzawa · 08-10-2009, 02:23 PM

There was a similar test done by Motorcyclist in the 80's that used full exhaust systems. All were done on a KZ650 and run several runs at a dragstrip. Similar results. Only a couple of pipes resulted in quicker times in spite of the fact that all the aftermarket pipes were substantially lighter than stock. Most were slower than stock.

Kenneth_Moore · 08-10-2009, 02:27 PM

Quote:

Originally Posted by Buzglyd

The fancy exhaust is called the Obamapovic. It cost a lot of money and offers no benefit whatsoever.

Screamin Eagle has a new pipe for your Geezer Glyde. At idle it sounds like:

OBAMAOBAMAOBAMAOBAMAOBAMA

Buzglyd · 08-10-2009, 02:49 PM

Quote:

Originally Posted by Kenneth_Moore

Screamin Eagle has a new pipe for your Geezer Glyde. At idle it sounds like:

OBAMAOBAMAOBAMAOBAMAOBAMA

I figured it would go; Uh Umm Uhh Umm and whistle through it's teeth a lot.

The_AirHawk · 08-10-2009, 03:28 PM

Vrooma-Zoom-ZOOOM!

longride · 08-10-2009, 03:46 PM

Bad news here. MOKE is going to have to put his stock muffler back on! Oh the pain!!!

longride · 08-10-2009, 03:58 PM

Quote:

Originally Posted by Buzglyd

The fancy exhaust is called the Obamapovic. It cost a lot of money and offers no benefit whatsoever.

Oh cut it out. If you were half as smart as Obamalama, you could be a community organizer too.

sarnali2 · 08-10-2009, 04:49 PM

You'd have to be a total maroon to ditch a stock Ti system for some pile o' shyte alloy can in the first place, then loose HP to boot...............

They'll probably sell a million of 'em ROFLMAO...

08-10-2009, 01:39 PM	#1
seruzawa Robby Join Date: Nov 2001 Location: 8501 ft. Posts: 16,803	Stirring another pot I ran across this interesting article from Oz. Honda Fireblade - Muffler comparison - MCNEWS.COM.AU Notice that half of the aftermarket cans result in less than stock hp and that they rate the stock muffler better than most of the accessories. The moral? Don't alter your system unless you are willing to spend the $ on remapping/rejetting. Even the best pipe only gave an negligible increase of 3.5 hp = less than 2%.. and only at full redline. You decide if it's worth several hundred simoleans. This is why a chuckle at people with loud pipes that obviously have not been rejetted. __________________ I've seen things you people wouldn't believe. Attack ships on fire off the shoulder of Orion. I watched c-beams glitter in the dark near the Tanhauser Gate. All those moments will be lost in time, like tears in the rain.

08-10-2009, 01:47 PM	#2
Kenneth_Moore Registered Member Join Date: Jun 2007 Location: VIsiting the GIft Shop in the Pit of DIspair Posts: 7,118	Holy crap, it's worse that I thought. Not only do they not improve anything, in most cases they made less HP and torque. Good post, very interesting study. So, be honest and say to yourself and friends: I'm buying the exhaust because I like the sound and it looks good. Nothing wrong with that! __________________ www.kennethmoore.org

08-10-2009, 02:21 PM	#3
Buzglyd Founding Member Join Date: Nov 2001 Posts: 10,137	The fancy exhaust is called the Obamapovic. It cost a lot of money and offers no benefit whatsoever. __________________ Jay Leno: "President Obama released his tax returns. It turns out he made $900,000 less in 2011 than he did in 2010. You know what that means? Even Obama is doing worse under President Obama."

08-10-2009, 02:23 PM	#4
seruzawa Robby Join Date: Nov 2001 Location: 8501 ft. Posts: 16,803	There was a similar test done by Motorcyclist in the 80's that used full exhaust systems. All were done on a KZ650 and run several runs at a dragstrip. Similar results. Only a couple of pipes resulted in quicker times in spite of the fact that all the aftermarket pipes were substantially lighter than stock. Most were slower than stock. __________________ I've seen things you people wouldn't believe. Attack ships on fire off the shoulder of Orion. I watched c-beams glitter in the dark near the Tanhauser Gate. All those moments will be lost in time, like tears in the rain.

08-10-2009, 03:28 PM	#7
The_AirHawk Founding Member Join Date: Jun 2007 Location: Livin' in a Van: down by the Mariana Trench Posts: 10,891	Vrooma-Zoom-ZOOOM! __________________ *Parfois, on fait pas semblant* Sometimes, it's not pretend Oderint Dum Metuant Let them hate so long as they fear политики предпочитают безоружных крестьян Politicians Prefer Unarmed Peasants Nothing to see here, Citizen. Move along now...

Sponsored Links	Remove Advertisements
Motorcycle Forum Advertisement

08-10-2009, 03:46 PM	#8
longride Super Duper Mod Man Join Date: Nov 2001 Location: Anywhere they let me Posts: 10,484	Bad news here. MOKE is going to have to put his stock muffler back on! Oh the pain!!! __________________ I'm a knucklehead

08-10-2009, 04:49 PM	#10
sarnali2 Aging Cafe` Racer Join Date: Jun 2007 Location: Sittin' down by my window, lookin' at the rain. Posts: 8,132	You'd have to be a total maroon to ditch a stock Ti system for some pile o' shyte alloy can in the first place, then loose HP to boot............... They'll probably sell a million of 'em ROFLMAO... __________________ "Carpe` Throttelum -Loud Suits Save Lives" "All the BMW riders in the room, I want you to leave. Now. Out. "