The catalytic converter is in the head pipe. The "boom box" you're referring to is nothing more than a sound baffling pre-muffler chamber. Remove it and you'll still have the cat in there.

The headpipe design is typically what requires tuning with a piggyback controller like a PC or zFI. Would the bike benefit from a tune with a slip-on? Sure it will. Is it needed with a link pipe/slip-on? Nope.

 

I didnt realize it had no cat... I was under the assumption the bike was utilizing two cats... So what are your thoughts on the m4 slayer? I will not be going pcv until next year; i just need a little more sound then what the oem trumpet produces. Not to mention how gawd awful it looks.

 

The bike does have two cats, they are both in the headpipe. It's a 4 into 2 into 1 set up, and the cats are in both sides of the 2-pipe section directly under the motor. The box is nothing but a baffling chamber.

The M4 is a decent pipe and a lot of the members run them on their bikes. I'm considering the street slayer it for my Gen 4.

 

When you pull the boom box off, shine a flashlight into the headpipe. You'll see the platinum honeycomb of the catalytic converter on both sides. To remove it, you eaither go to a full system or get out a drill and punch to remove it out of the header. The Gen 2 is the same way, but that section of the pipe unbolts instead of being welded like the Gen 3.

 

Quick question Mr. SkyDork.



For the slip ons, what do you do about the servos and FI Light? Do the slip on kits deal with that or do we need to buy additional hardware?

Thanks bro!

 

just get a slip on this year and delete the boom box. Your bike will be fine without a power commander from just adding a slip on. Then my advice would be, next year when you get a pcv, gut your cats and then install the pcv and get it custom tuned. Gutting the cats will get you a little better sound and a couple hp.. I currently am running the carbon fiber m4 slayer and gutted cats. Waiting for nicer weather to get the bike custom dyno-tuned.

 

nice.... M4 slayer it is.... What is the purpose of the boom box? Just to cut out drone or noise? Much like a resonator on a car?

 

What is the purpose of the boom box? Just to cut out drone or noise? Much like a resonator on a car?

Sound. Can't kill all the noise with the short muffler to meet noise pollution standards, so they have to add a baffling chamber.

 

Interesting... THe bike has enough power as it sits. However considering the restriction the baffles would create, I can imagine a good gain with the delete of the box. It's hard to see that most slip ones wouldnt want to delete that box.

 

Op

:heyyou:

I'm just curious? Why did you pick the M4 Street Slayer over the M4 GP Mount?

 

:heyyou:

I'm just curious? Why did you pick the M4 Street Slayer over the M4 GP Mount?

Street slayer should be quieter, and it looks better imo.

 

Will i get an FI light if I remove the cables from the motor under the seat but not the motor? I see that there is a resistor mod that will allow for removal but until I can get to radio shack I was curious.

I see alot of slip ons going on these bikes but no one really talking about FI codes from it.

 

The slip on and deletion of the cables for muffler wont create an FI light?

 

No. Leave the servo motor in place and nothing will be affected.

 

( . Y . )'s ... thanks everyone!

 

The servo eliminator is only needed if you remove the servo.

If you just remove the cables but leave the servo there you wont have a light.

 

Cool deal!




:thumbsup: Nice! Good information! Hope it right (that's only because I was lead wrong before :crackup?????

I've been told it does and some type of servo elimator is needed.

I could be wrong???

Dam I was crazy late and wrong!!!

 

I will delete the motor later after I make the resistor set for it.

 

Rafa is right. Leave the servo. no problems.

 

ccasion1

 

Sorry to revive..put this exact exhaust on my 2010 just weeka ago.

However, I already have the PC V .

Until tuned..what map would you suggest:

1) M4 Full exhaust W/ stock filter?

2) Zero map?

 

You may have good luck with the M4 map. Try it out and see what you think and go from there. If the bike responds reasonably well, then you should be able to run that map. If not, just zero it out and run that one. If your map is set to all 0's, it effectively won't be doing anything.

If the M4 map is bad, you'll likely feel some part throttle surging or lurching while riding or it won't be really smooth under acceleration. If it's way off you'll know it pretty quickly. It takes just a few seconds to hook up and download a new map to try.

 

Thanks.. I've PM you.

Trued custom map.that came on bike..not noticeable, trued M4..bike road the same...zero map ovcourse. The same.

I'll try few more then just Zero it out for safety jnleaa I notice a benefit to.one of the maps.

Thanks!

 

Interesting "Maps" WTF?

Power Commander seems complex???? It's not a plug in play?

Thanks