Member Contributer DannoXYZ Posted April 29 Member Contributer Share Posted April 29 On 4/27/2023 at 2:39 AM, gropula said: Regarding the gaskets that go between the primaries and the cylinder head - delkevic is out of stock again. I tried finding an alternative. These will fit with some grinding EBAY LINK. They measured around 42.2mm OD so I used an angle grinder to narrow them down. It's possible to do so because they're not hollow like some other gaskets, they have material all the way through. They seal nicely and don't inhibit exhaust flow on my motad(ish) headers. What OD did you trim them down to in order to fit? I've used these on my RC24 & RC26 and they fit perfectly. Expands to about 41mm when crushed. https://www.aliexpress.com/item/3256805023890622.html Looks like 800 also uses 40mm gasket https://www.ebay.com/itm/195539730170 Quote Link to comment Share on other sites More sharing options...
gropula Posted April 30 Share Posted April 30 I was just grinding until they fit. The flanges that hold the studs protrude slightly so I ground off more where they interfere, making the gasket somewhat oval. Those 40 mm OD gaskets have 32 mm ID, and about 30 mm ID when crushed. Way to small for aftermarket headers. These ones from CB600F/FJS400 have 34 ID and probably don't crush as much because they're not hollow. 3 Quote Link to comment Share on other sites More sharing options...
Member Contributer DannoXYZ Posted April 30 Member Contributer Share Posted April 30 Ah yes, need to keep ID clear. Quote Link to comment Share on other sites More sharing options...
Gotama Posted May 22 Share Posted May 22 On 4/23/2023 at 9:30 AM, Oregonian said: I just sent my deposit. I saw a set of these in the flesh at EDR Performance in Beaverton Oregon. They will be doing the install and tune for me. They have done multiple sets and report great results and happy owners. Yeah great results that Eric isn’t willing to share Quote Link to comment Share on other sites More sharing options...
SEBSPEED Posted May 22 Share Posted May 22 Some eye candy encouragement for potential buyers... 8th gen set on my supercharged 6th gen... 2 Quote Link to comment Share on other sites More sharing options...
Member Contributer Bren Posted May 22 Member Contributer Share Posted May 22 2 hours ago, SEBSPEED said: Some eye candy encouragement for potential buyers... 8th gen set on my supercharged 6th gen... Up for sale? Why oh why sell a labour of love like that? What price can you put on so much effort and beautifulnessssss? Seriously out with it, how much 🤔? Quote Link to comment Share on other sites More sharing options...
Member Contributer Captain 80s Posted May 22 Member Contributer Share Posted May 22 26 minutes ago, Bren said: Up for sale? Why oh why sell a labour of love like that? What price can you put on so much effort and beautifulnessssss? Seriously out with it, how much 🤔? This is the exhaust thread. He's talking about eye candy encouragement for people considering getting in on the next run of exhausts. Quote Link to comment Share on other sites More sharing options...
Member Contributer Bren Posted May 22 Member Contributer Share Posted May 22 1 minute ago, Captain 80s said: This is the exhaust thread. He's talking about eye candy encouragement for people considering getting in on the next run of exhausts. My bad. Sorry to derail 😇 Quote Link to comment Share on other sites More sharing options...
omgvfr Posted June 1 Share Posted June 1 This group buy is still in progress… I am one of those who has a deposit down. Any ideas going forward? I’d really like to make this still happen. Quote Link to comment Share on other sites More sharing options...
Member Contributer JZH Posted June 4 Member Contributer Share Posted June 4 VFRD/WiLD header group buy timing not good! Fingers crossed... Ciaom, JZH Quote Link to comment Share on other sites More sharing options...
omgvfr Posted June 5 Share Posted June 5 I sent an inquiry and heard back. The good news is the group buy is still going through and we are close to our 15. Also, the 42mm gaskets are back in stock. $32 shipped for the order. I'm picking up in preparation. https://delkevic.com/copper-gasket-42-mm/ Quote Link to comment Share on other sites More sharing options...
Member Contributer vfrcapn Posted June 5 Member Contributer Share Posted June 5 Any idea how close? Coming up on 5 months since deposit was sent.... Quote Link to comment Share on other sites More sharing options...
pnut1236 Posted June 9 Share Posted June 9 So I am interested for a 6th gen header, I rarely come here but curious whether their is someone I can email to ask questions before committing? A guy came on one of the fb groups awhile back and mentioned them so I did some searching and got here. Quote Link to comment Share on other sites More sharing options...
omgvfr Posted June 9 Share Posted June 9 Post questions here. There also is a PM that goes out with info on deposit and payment info. Quote Link to comment Share on other sites More sharing options...
Member Contributer Oregonian Posted June 10 Member Contributer Share Posted June 10 The address you send payment to is vfrheaders@gmail.com. You might want send email to that address. Quote Link to comment Share on other sites More sharing options...
Member Contributer Duc2V4 Posted June 13 Member Contributer Share Posted June 13 On 6/9/2023 at 9:18 AM, pnut1236 said: So I am interested for a 6th gen header, I rarely come here but curious whether their is someone I can email to ask questions before committing? A guy came on one of the fb groups awhile back and mentioned them so I did some searching and got here. You can send me and/or fellow member sfdownhill a PM. We are the two members involved in getting these to production. SF did most of the work finding and getting them made, my main support comes from my past life as a shipping/receiving clerk, I'm the guy who gets them out to you good folks. Quote Link to comment Share on other sites More sharing options...
Member Contributer Duc2V4 Posted June 13 Member Contributer Share Posted June 13 On 6/5/2023 at 3:22 PM, vfrcapn said: Any idea how close? Coming up on 5 months since deposit was sent.... Really close but Wade is adamant about meeting the minimum order before moving forward. That said, I need to check in with SF and see what else we might be able to do to speed things up. We'll keep you posted. Quote Link to comment Share on other sites More sharing options...
Member Contributer adkfinn Posted June 13 Member Contributer Share Posted June 13 FYI - if any Aussie folks are interested in one of these - one has popped up on FBMktplce - Quote Link to comment Share on other sites More sharing options...
Tyjamo Posted June 15 Share Posted June 15 Hey all, I stumbled upon this thread while searching for Power Commander information. Obviously these $1k headers are worth it to a dozen or so of you die hards, but what is it exactly that you're getting by installing these? What are the tangible gains? I finally got my dream slip ons, the Lasers. Would these headers, and a PC make a worthwhile improvement in performance? What will the headers do to the sound? OEM headers and Lasers sound dreamy to me, throaty and quiet, I don't want it much louder. How many more buyers do you need? How important is a dyno tune with header and PC? Dynos are seemingly nonexistent in remote MT. Thanks in advance! Quote Link to comment Share on other sites More sharing options...
Member Contributer interceptor69 Posted June 15 Member Contributer Share Posted June 15 No rust. More HP. 1 Quote Link to comment Share on other sites More sharing options...
Member Contributer Oregonian Posted June 15 Member Contributer Share Posted June 15 Once you switch to a full aftermarket exhaust system and get it tuned properly, you'll never go back. And you'll immediately modify all your future bikes in the same way. Nothing else will ever make a bike run so smoothly and sound so pure. 2 Quote Link to comment Share on other sites More sharing options...
Member Contributer Duc2V4 Posted June 16 Member Contributer Share Posted June 16 20 hours ago, Tyjamo said: Hey all, I stumbled upon this thread while searching for Power Commander information. Obviously these $1k headers are worth it to a dozen or so of you die hards, but what is it exactly that you're getting by installing these? What are the tangible gains? I finally got my dream slip ons, the Lasers. Would these headers, and a PC make a worthwhile improvement in performance? What will the headers do to the sound? OEM headers and Lasers sound dreamy to me, throaty and quiet, I don't want it much louder. How many more buyers do you need? How important is a dyno tune with header and PC? Dynos are seemingly nonexistent in remote MT. Thanks in advance! I believe that we are 4 orders short of the minimum. As for the gains, as some said already, more HP. I have a set on both my VFRs, an 01 and an 09 (5 Gen and 6 Gen). There is also a weight reduction, although the weight drop for 5 Gens without the catalytic converter is a few pounds difference but you'll lose a little bit more for the 6 Gen, due to the loss of the catalytic converter. If Dyno tuning is your concern, for both the Power Commander and the Rapid Bike tuning modules, you can use their "Auto Tune" feature. Essentially you use their software and setup your "targets" and let the auto tune do it's job. That's how I have both of mine running. There's also the possibility that someone has a map that they uploaded to this site and you can use that to get a baseline, but a proper Dyno tune is most likely going to be a preferred option after doing that, if going that route. Another positive, being made of stainless steel, rust is not a big concern anymore. Ultimately, the header primary pipes are much larger and flow more than the stock pipes, especially for the 6 Gen bikes, as their headers are smaller diameter than the 5 Gens and are more "restrictive" due to the smaller pipes and catalytic converter. Although I am part of the team that helped get these headers out to the VFR community, I'm also a buyer and user of them, and would not hesitate buying these, even if I was not involved with the project. In fact, I am buying another set this round too, they are a gift for a very good friend who just reported to me that he is now Cancer free. As for the sound, I have 2Bros cans on both VFRs and the can is more relative to the sound than the headers, at least I feel that in my case. Here's a recent video I took of my 5 Gen last Sunday after doing some work on the throttle bodies and wax idle unit. IMG_7947.mp4 1 1 Quote Link to comment Share on other sites More sharing options...
Member Contributer Duc2V4 Posted June 16 Member Contributer Share Posted June 16 I knew I had the figures on header weight and found them after the last post. OEM Headers with Catalytic converter: 13.94 lbs. (All 6 Gens, 00-01 5 Gens) OEM Headers without Catalytic converter: 10.38 lbs. (98-99 5 Gens) Our headers : 9.88 lbs. Quote Link to comment Share on other sites More sharing options...
timmoer Posted June 16 Share Posted June 16 So many pages! Didn't see it in the first post and apologies if I missed it - I'd be very curious to see a dyno of a 98-99 5th gen: 1) Stock, or with a slip-on 2) As above (for A-B comparison) with this header and a tune Quote Link to comment Share on other sites More sharing options...
Member Contributer Duc2V4 Posted June 16 Member Contributer Share Posted June 16 25 minutes ago, timmoer said: So many pages! Didn't see it in the first post and apologies if I missed it - I'd be very curious to see a dyno of a 98-99 5th gen: 1) Stock, or with a slip-on 2) As above (for A-B comparison) with this header and a tune If I recall these came from some Dyno runs done by sfdownhill with his 5 Gen and a friends 6 Gen, and a fellow member who loaned his 8 Gen for some test runs. Unfortunately I don't think there are before/after, but I'd have to check with SF, as these were done right after the first production run. These are from 2019. The images I have say "comparison" but I don't remember the details, it was a while ago and before my brain surgery, so I do question my memory sometimes now. This is the 5 Gen run. 2 Quote Link to comment Share on other sites More sharing options...
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