Im thinking of getting a new exhaust...

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gsxr600krzy · Sat Apr 28, 2007 9:07 am

I own a 2006 GSXR600 K6. I've been looking at some exhaust's and have a couple in mind. I was just wondering peoples out takes on weather i should go with a full system or a slip on? What are the benifits of a full system over a slip on besides power? Also im pretty sure i would need to get it professionally tune'd as well but not positive on what needs to be done.

Can someone give me the jist of what im looking at here for both a slipon and a full system?

Thanks in advance to all of those who provide me with informaton i need.!

hi-side · #2 Unread post by **hi-side** » Sat Apr 28, 2007 10:48 am

For a slip-on you really don't need to re-tune.

I've been partial to both Akropovic and M4 full Ti systems. M4 used to be a sponsor of mine. There are tons of different brands out there.

To get the most out of a full system, you'll need a power commander and tune it on a dyno. The tuning is anywhere from $200-$300, with the lower end usually being racer price. PClll is about $225.

You can get a full system with aluminum can for about $800 and for a full Ti add another $400 or so. Slip-ons can be had from $300-$600, depending on what you want... aluminum can, carbon fiber, Ti.

All that said, for that same amount of money, you can get a nice upgrade on the suspension. On the track, suspension should always be the first upgrade, more power just gets you in trouble faster.

green meenie · Sat Apr 28, 2007 12:12 pm

+1 on everything hi-side said. That's all the info. you should need.

I went Akra slip-on cuz I'm not racing so don't need the power gain (hated the stcok can sound is all). Have no Power Commander and it's just fine.

Prices might vary though depending on where you live. That stuff is all brutal expensive here in Canada like double what Hi-Side mentioned. So you're in luck if you live State-side

WB1 · #4 Unread post by **WB1** » Sun Apr 29, 2007 12:27 pm

hey man
loud pipes save lives
the louder the better

atom · #5 Unread post by **atom** » Wed May 02, 2007 12:12 pm

Once you get a freer flowing exhaust, the air intake will become the limiting factor in getting air through the engine. To get the most out of yur upgrade money, you should get a performance air filter and probably cut away part of your filter housing. Its easiest (but most expensive in the short run) to get the filter, PC, and exhaust on the bike at the same time and then doing the tuning on the dyno.

If you don't do it all at the same time, you can risk running too lean and overheating/damaging the engine and doing multiple costly dyno tuning sessions.

I don't know anything about Gixxers specifically, but the "go faster" mods work synergistically and in general the best way to go about it is to do them all at the same time.

hi-side · #6 Unread post by **hi-side** » Wed May 02, 2007 1:22 pm

If you cut away part of your airbox and you have ram air, like on the gsxr, you'll lose air pressure on the intake and lose power too. The ram air is there to direct air in and pressurize the air box. Cutting away part of the airbox only works to increase air flow when the bike is standing still.

atom · #7 Unread post by **atom** » Wed May 02, 2007 3:54 pm

yeah, if its ram air, don't touch the air box. cutting away the airbox only helps when the engine sucks air in.

V4underme · #8 Unread post by **V4underme** » Thu May 03, 2007 1:36 pm

Just adding a few more comments to the excellent info here... slip-ons/bolt-ons will get you around 2-5 more hp up top on most bikes. Some will make the low and midrange feel a bit better if you are good enough of a rider to tell.

What exactyy do you want the exhaust for? If it's just the sound, save a ton of money and get a good slip/bolt-on can. If you want lower pitch sound, look at Yoshimura or Scorpion. The Two Brothers can on my ZRX sounds really nice and low pitched, too, not weedeater-like. D&D has a rep for being really really obnoxiously loud and not too pleasant sounding. You really can't go wrong with any of the name brands like Yosh, Scorpion, M4, Micron, Akrapovic, etc. Most of these are in the $275-$350 range. I just purchased a new Scorpion can for my 12R, $263 delivered from parts411.com.

Full systems will get you around 15 extra hp up top and raise the overall hp and torque curves a little, but they cost a lot more. If you're a track day person and devoted to the bike, go full system. Otherwise, stay stock or get a good can and enjoy the sound.

hi-side · #9 Unread post by **hi-side** » Thu May 03, 2007 3:24 pm

You won't get 15 HP from a full system on a 600. With a full system, PClll, and dyno tune on race gas you'll be looking at about 12 total at the rear wheel of a 600. Total on a 1000 is about 16 assuming all of the above. And just for reference you can gain 3 HP at the rear wheel with race gas alone, but its also $9 a gallon for U4. If you're not going to run race gas, and I can't imagine any street rider running it, then you're 3-4 HP lower. If you tune it on race gas and run pump gas, you're HP will go down and your bike will run rich.

V4underme · Tue May 08, 2007 1:40 pm

Spot on, hi-side. I'm used to the 1000 cc + world, didn't even realize the bike in quesiton was a 600. The PCIII portion, too, is needed to optimize power, and a freer flowing air filter.