Kawasaki Sportsbike Riders Club - Australia - Online Forum

On my wishlist of mods for the 6 is an exhaust upgrade.

I'm not gonna "mod" the standard one save my money and effort for an aftermarket.

If I go slip on I've decided I like the look/sound of the akrapovic the most. Haven't even looked at full systems but thought I'd ask to find out what the pitfalls are.

I've heard of people putting full systems on their road bikes.

-So, how loud are full systems?
-Are they the bike equivalent of an annoying pipe on a car where you get sick of the drone pretty quickly when holding steady revs?
-Full system means remapping the fuel delivery via power commander also right?
-Any midrange power/torque increase would be great for riding around the burbs, but am I looking in the wrong place, and if I wanted my bike to pull like an 09/10 ZX6R down low is that 100% in the engine and weight reduction?

Only way I'll stretch to a full system will be a 2nd hander setup, probably off a race bike.... race setup no good for road?

the note is usually alot deeper and only alittle louder.

I wouldnt go full system without a pc3 but you only need a standard map from the web to avoid a dyno.

Full system wont give you any noticable power on the road and even on the track you will need to be pushing your bike to it's limits to notice the difference.

Stick with a slip on.

Yeah a slip on's the go I reckon Tim. I think you'll find the Akra fine noise wise. Typically they're not stupidly loud just nicer. I have had pipes that were loud eg the Yoshi RS3 on my 9 used to drone under about 80km/h but then it was fine albeit pretty loud

Blurr wrote:Full system wont give you any noticable power on the road and even on the track you will need to be pushing your bike to it's limits to notice the difference.

Would have to disagree Russ even just a 2 bros slip on there is a noticeable difference between my 6 & Owens with the gutted original, the midrange is definitely better with the 2B, he felt it & he concurred with the difference I noted, seems the arse dyno does work. A full system should produce a few more ponies but Tim you would more than likely have to fork out for the PC111 to make sure you can maximise any benifits. I would vote for slip on.... if you want HP then buy a 10

I'll be getting one of these aswell Tim once i save the money. I think they look the best.

thats exactly my point Rob. A full system over a slip on would not offer any noticable advantage

Blurr wrote:thats exactly my point Rob. A full system over a slip on would not offer any noticable advantage

Gotcha I thought you were saying no dif over stock.

Ok, Akra slip-on it is! Thanks guys.

From what I have seen, slip on does not need rejetting (unless coupled with K & N air filter), full system will need rejetting regardless.

Slip on will give more even benefits through the rev range, most noticable in the mid range. Full system is aimed at providing top end peak power (sometimes at the expence of low end power), and will not be of much benefit on the road.

Mine is an Akrapovic full system Tim. Did you think it was any louder than a slip on? The full system on the ZRX gives you about 25 more horses than standard and about 20 more than just a slip on so it is definitely worth doing. There's heaps more mid range and bottom end too so it is very noticeable on the road. When I put the full 4 into 1 system on the Z1000 it improved how hard it pulled through the whole rev range as well, but the headers on the newer bikes might be a lot better than on those models so you might not get as noticeable gains as I did. On a bike that could do with a bit more power I would go for the full system but Leanne is just opting for a slip on for her 10 as it's got heaps of grunt as it is and you couldn't justify the extra expense. Mind you if you wanted more power you would've been better off just buying a 10 in the first place.

Nelso wrote:When I put the full 4 into 1 system on the Z1000 it improved how hard it pulled through the whole rev range as well

Same with mine on the Z1000, massive & I mean MASSIVE increase through the whole rev range - espacially about 6k wooooo hooooooooo.

There also does seem to be alot of generalisations in the replies too- A slip on will do this or that and full system will do this and that, remember there are quality systems and there are just systems...........each will have different effects on the machine and therefore what you feel changes.

Cant comment more as I have never had a slip on

HMMM, the plot thickens

Phil wrote:.....There also does seem to be alot of generalisations in the replies too- A slip on will do this or that and full system will do this and that, remember there are quality systems and there are just systems...........each will have different effects on the machine and therefore what you feel changes.......

absolutely right mate. Some slip-ons work better than others, some of them have more baffling than others, some have less......the only way to find out if they are working properly is using a dyno - and you need to have a baseline curve to start with. It's well worth the effort to get your bike dynoed first (TJ's at Minchinbury is a KSRC sponsor and will look after you) - and then go back to the same dyno when you change the exhaust to a slip-on or a full system.

Way back in the dark ages, when the Black Pearl was new - I could *immediately* tell if a change of system worked or didn't, and where it improved. This bike uses an 'air flap' to determine the fuel-injection duration, and the effect of air-flow through the motor, determines how the air-flap responds. So any changes in air-flow (as you get with different exhausts) make an immediate and noticeable difference to how and where the engine delivers its power. The bum-dyno was always 100% accurate on the Pearl !!

From my experience with slip-ons vs. a full exhaust. My Muzzy slip-ons gave me a top end boost but I lost mid range, (due to lack of back pressure), Laser extremes gave me a mid range boost with a loss on top. I tried a few other cheap slip-ons and the short ones made me loose power and the normal length slip-ons either gave me high end or mid range but not both. This is with a power commander PCIII tune and the air box mod. I went to a full Muzzy and have increased both mid range and top, (130 plus rear wheel HP @ 4600 feet altitude), not bad for a 2004 Z1000. Plus my bike lost 30 plus pounds of weight over the stock boat anchors.
It's still never going to be a ZX10R but it's good for an old fucker like me. Time for a Jim Beam.

As mentioned above go the slip -on but get it custom mapped the '07 models have a lot to gain with a new map and air filter, re gear the bike to give u more torque +3 teeth on the rear sprocket would be a start.

Or if u have a gold mine get one of these...