This GSXR mod works incredibly with the 'BST magic' mods - cheap do-it-yourself mods to the stock DR650. Read about it all in this BST magic thread. This info applies to 1996+ models only. WHY ADAPT THE GXR600 GSXR750 GSXR1000 PIPES TO A DR650SE (1996 to current models)? It's around half the weight of the stock pipe, and about the same as most aftermarket pipes. Dyno charts show it gives around the same performance increase as aftermarket pipes. It's far quieter than aftermarket pipes, but has a nice note and louder than stock so you can actually tell which gear you are in at speed. It's good for the environment - you are recycling a can that would otherwise just sit in a wrecker's shed instead of buying a new one with all that expensive carbon-intensive alloy. It doesn't need repacking. Extra performance and no loss in fuel economy (if you keep the airbox and jetting as standard). It looks legal - if aftermarket pipes can get you booked in your country, then this comes stamped Suzuki and your average cop wouldn't have a clue it's not the stock pipe. And it's still very quiet so they shouldn't bother anyway. the GSXR exhaust works brilliantly with the carbie mods in this video. IS IT CHEAPER THAN JUST BUYING A POWER PIPE? It can be an incredibly cheap mod if you get the pipe cheaply from the wreckers, and make your own mid pipe, quite a few guys have done it for around $50 or less. It will still be pretty cheap if you buy an aftermarket mid-pipe and get the can cheaply (say under $50). But if you pay a fair bit for the can it will probably come out to the same as buying a new power pipe, although you still have the advantage of a quieter bike and it looks completely legal with the Suzuki markings etc. HOW MUCH EXTRA POWER WILL I GET? AND WHAT DOES IT SOUND LIKE? Here's a dyno chart that shows the GSXR1000 pipe matching or slightly outperforming the FMF pipe over most of the rev range. Please note I don't know what jetting was involved, the results came from this site here. This Youtube clip let's you see and hear the difference between a GSXR pipe and the stock can. <iframe src="" allowfullscreen="" frameborder="0" height="375" width="640"></iframe> WHY IS A MID PIPE REQUIRED? HOW DO I GET MY HANDS ON ONE? You can use your existing header pipe, but will need a midpipe with a flange to connect to the four bolts on the GSXR muffler. You can buy an aftermarket one ($200 to $300) or make your own if you can access some pipe bending and welding equipment. Alternatively, try an exhaust specialist - I went this option and this Brisbane, QLD, Australia mob only charged $180 to make all the fittings and install as well. Bargain! The Hindle P/N DR650S0SS slip-on stainless steel mid-pipe pictured below. Uses the stock DR head pipe joint gasket. Some guys report problems with the HIndle pipe making contact when the suspension bottoms out and eventually cracking? Check out this post but make sure you read all the responses including the manufacturer's response before making a judgment on whether it is the user's fault or Hindle's fault.... Another option is the Two Brothers mid-pipe pictured below (on top of the Hindle unit). It too is stainless steel, provides more rear brake line clearance than the Hindle pipe, and puts the GSXR muffler at a steeper angle. Jesse at Kientech does mid-pipes as well, including a wider diameter one for the oversize FMF header pipe. These mid-pipes will come with a bracket for bolting your GSXR can to the frame. If you make your own mid-pipe you'll just need to make your own bracket like the one below. It's very handy that the GSXR cans line up as well as they do. WHICH GSXR PIPES WILL WORK ON THE DR650? You've got a fair bit of choice here, depending on how fussy you are about size, weight and performance. The lightest can is from the GSXR1000 2001 and 2002 models. This one is shorter and lighter due to a fair bit of titanium. Make sure it is stamped x40F0x. Second best option is the GSXR1000 can from the 2003 and 2004 models. It will be stamped x18G1x. Slightly heavier, longer and fatter but still fits very well. Third best option? GXR600 2001 to 2003 models and GSXR750 2000 to 2003 models. This version has steel internals so a bit of extra weight (but still far lighter than the stock can!) and a smaller outlet pipe so it's quieter and a bit more restrictive. It is stamped "35F01" Suzuki P/N 14310-35F01-H01. Other options include getting aftermarket GSXR pipes, although the problem here is they are often very loud with no power advantage, and while there are some very cheap ones on Ebay they are usually very poor quality. The pic below shows an R1 muffler, then the GSXR1000 (02 & 03) then the GSXR1000 (01 & 02) from top to bottom. Technically you can make most cans work, and some guys have adapted the R1 can to the DR650. It's a big mother though, the big advantage of the GSXR pipes is they are very small, light, and require the least work to fit to the DR650. Obviously everyone tries to get the GSXR1000 2000 or 2001 model but it does make these scarce and/or expensive. If you have concerns about the larger size of the 2003 and 2004 models here is a pic of it fitted to my DR650. Tucks away very nicely, but I think this is because the exhaust specialist put a lot of effort into making sure it didn't poke out the back too much. Below is the smaller GSXR1000 (2001 or 2002) can with the Hindle mid-pipe. WHAT ABOUT A SPARK ARRESTER? Please note, the GSXR pipe doesn't have a spark arrestor. In some countries this can be a big issue. FMF have a screen type SA that pops right into the back of the GSXR muffler. See this link for more info and pics. WHAT ABOUT JETTING? The stock muffler is so restrictive that you will notice better performance immediately with the GSXR pipe. However, to maximize the benefit you should rejet and open up the airbox too. We cover cheap do-it-yourself mods in this BST magic thread, otherwise just buy an aftermarket jetting kit and open up the airbox. CHECK THAT HEADER WELD At the header flange, where the exhaust pipe meets the cylinder head, there is often a big glob of weld. If your DR650 has this, then you can file it back to improve exhaust flow. Might have just been on older models, but worth checking while you've got your mid-pipe off. This has been collated from various sources, but particular thanks to the guy who did this webpage (check it out, heaps of info and pic there) and guys from the Thumper Talk and DR Riders forums as well, a lot of their info is in here.