we all know that 1 muf is better then 2 for race use due to it being much lighter. but what about the under tail VS side exit. remember there are 3 considerations to make here. #1 is HP numbers, #2 is aerodynamics efficiency and the 3rd is how efficient the aerodynamics of the bike+rider are with the exhaust flow.

under tail obviously have has 2 and 3 wail the other has 1 due to less bends in the pipe. but after everything is factored in, does one of the 2 come out on top????

 

The reason some bikes have two exhausts versus one (ie, twins vs i4) is the exhaust pulses from a big twin can shred a single exhaust to pieces. I have seen an R6 with dual exhausts, and IMO it looks like poop. Not the poop. Just poop. I believe Moriwaki makes a dual exhaust system for the 600RR so it resembles the RC211V, and at least that makes sense - attempting to emulate a race bike. But an extra exhaust on an i4 is useless (unless it already has two, such as the Ugly Bus).

With regards to aerodynamic efficiency, the exhaust plays a small role. The shape of the frontal area and the tail are more important to drag than the exhaust.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by marmaladeboy &raquo;</TD></TR><TR><TD CLASS="quote">I have seen an R6 with dual exhausts, and IMO it looks like poop. Not the poop. Just poop.</TD></TR></TABLE>

that's what i was referring to. i know the exhaust pulse doesn't play a big part in the efficiency but it does play some... every little bit counts

 

You wouldn't be able to tell the difference in performance with just your butt dyno so...

get one you think looks best.

IMO, aftermarket undertail exhaust kits are wack.

 

my 600rr exhaust doubles as a passener *** warmer.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ScareyH22A &raquo;</TD></TR><TR><TD CLASS="quote">IMO, aftermarket undertail exhaust kits are wack. </TD></TR></TABLE>Same here
I feel no need for a undertail exhaust. No need to copy Honda

 

The more bends in an exhaust = less overall HP

I like undertails IF and ONLY IF it was factory done.

EG: 1kRR, 600RR, R1, 748-999 Duc, etc.....

Aftermarket ones just look like *** to me.....

But, that's my .02 anyways

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ag-Eng &raquo;</TD></TR><TR><TD CLASS="quote">The more bends in an exhaust = less overall HP

I like undertails IF and ONLY IF it was factory done.

EG: 1kRR, 600RR, R1, 748-999 Duc, etc.....

Aftermarket ones just look like *** to me.....

But, that's my .02 anyways</TD></TR></TABLE>

couldnt agree with you more.

 

Its all about the highmount side pipes

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rioninja &raquo;</TD></TR><TR><TD CLASS="quote">Its all about the highmount side pipes </TD></TR></TABLE>
Highmount
High exit

 

You cant feel the heat from the exhaust on a 600rr, at least so says my girlfriend.
Drag is neglible for the everyday rider, even for the amatuer racer. Most people dont really have a need for a high mount exhaust besides looks and performance is actually slightly less than a regular mount.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Etylorcen &raquo;</TD></TR><TR><TD CLASS="quote">You cant feel the heat from the exhaust on a 600rr, at least so says my girlfriend.
Drag is neglible for the everyday rider, even for the amatuer racer. Most people dont really have a need for a high mount exhaust besides looks and performance is actually slightly less than a regular mount. </TD></TR></TABLE>

if i am sitting at a light for 1 or 2 minutes; i can touch the pass. seat on my 600rr and notice it heating up; maybe its because i don't have a stock exhaust? iunno.

 

I got my Hindle highmount/exit for a few reasons.

1- Hindle is fairly cheap compared to others
2- Hindle has been shown to compete HP wise with Arata and Akro. 2 of the best exhausts on the market.
3- It looks cool as HELL!!
4- It sounds even better!!!


Hey SON, do you go to bike nights on Thursdays up here in the Valley?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ag-Eng &raquo;</TD></TR><TR><TD CLASS="quote">I got my Hindle highmount/exit for a few reasons.

1- Hindle is fairly cheap compared to others
2- Hindle has been shown to compete HP wise with Arata and Akro. 2 of the best exhausts on the market.
3- It looks cool as HELL!!
4- It sounds even better!!!


Hey SON, do you go to bike nights on Thursdays up here in the Valley?</TD></TR></TABLE>

i have a full hindle; i like how it sounds a lot also.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ag-Eng &raquo;</TD></TR><TR><TD CLASS="quote">I got my Hindle highmount/exit for a few reasons.

1- Hindle is fairly cheap compared to others
2- Hindle has been shown to compete HP wise with Arata and Akro. 2 of the best exhausts on the market.
3- It looks cool as HELL!!
4- It sounds even better!!!


Hey SON, do you go to bike nights on Thursdays up here in the Valley?</TD></TR></TABLE>If your talking about Zorbas, no. I tend to keep away from big groups and the younger. Im only 21 but the people I ride with are Dinosaurs! LOL

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Son &raquo;</TD></TR><TR><TD CLASS="quote">
Highmount
High exit </TD></TR></TABLE>
Highmount

WTF is the difference between a high exit and a high mount? Maybe im missing something here...

 

high mounts actaully are completely up, whereas high exits usually start where the stock canister would and point up, hence high exit. But yeah. I have a hindle Ti High mount. Honestly, it doesnt get hot (ti), looks amazing, peg retension and yeah wonderful.

 

What would you need a high mount for? Like you're gonna touch the can down on your turns. I'll be lucky to touch my pegs down, let alone my can.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Phaze2 Mike &raquo;</TD></TR><TR><TD CLASS="quote">high mounts actaully are completely up, whereas high exits usually start where the stock canister would and point up, hence high exit. But yeah. I have a hindle Ti High mount. Honestly, it doesnt get hot (ti), looks amazing, peg retension and yeah wonderful.</TD></TR></TABLE>

hindles cool but its canadian.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ScareyH22A &raquo;</TD></TR><TR><TD CLASS="quote">What would you need a high mount for? Like you're gonna touch the can down on your turns. I'll be lucky to touch my pegs down, let alone my can.</TD></TR></TABLE>

Mostly for looks. Partly because some of us dont have such a problem scraping the pegs

 

What's wrong with us floppy heads?

At least it's made fairly well (I stress "FAIRLY")

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ag-Eng &raquo;</TD></TR><TR><TD CLASS="quote">What's wrong with us floppy heads?

At least it's made fairly well (I stress "FAIRLY")</TD></TR></TABLE>

if only they knew that a sticker needs to have sticky stuff on one side; mine are all peeling.