Voided76

Let. Me. Know. when you plan to do dyno stuff with the 8G. I have my stock, 3 different lengths of mufflers, a stock and a modded airbox with candyred's glued-and-sanded-smooth R6 velocity stacks installed, clean stock, and <500 mile pipercross filters, the RapidBike Racing module, with the "override back to stock for CARB compliance" module on standby along with a bluetooth kit and my own laptop with the rapid bike tuning software on it. we could do all sorts of different stages of tune. I'd even kick around the idea of whether or not changing the drivetrain gearing picks up measurable power. could pick up a stock 520, and +1 520 front to measure up to 9 rear teeth's worth of drive gear adjustment. I would adore being involved, but I need a few months of advance time so I can put in leave with the navy to spend the odd 2-4 days wrenching and dyno pulling if I had my way.

remember guys, just the tip.

SFD I have the money up front if need be. again. I got money, AND time, currently.

I'm in for the 8th. no questions asked. Also let wade know I have the modded airbox, rapid bike race with ignition timing/fuel control, pipercross air filter, short med. and long mufflers standing by for tuning once he gets the 8th header out. I could take some leave maybe if you guys need a bike. or if you had a VFR in trade for a week or two while fabbing. ^_^ Cause I daily drive the '14

after how many of my great effort / completely failed attempts at headers.

That's entirely possible. that sounds like them trying to extract extra monies THROUGH shipping charges. So, we'll see. they asked me to send them a 2014 header for reference if they were going to make me one. Ebay to the rescue. tossing some low-balls around to see if I can score a header for cheap, then drop ship it to wherever these guys are. lol If they see just how close '14 headers are to their own jigs I imagine they'd just fab up some '14 style front primaries and 8th genners would have a header worth spending money on.

They're all coming from the same shed. Every process is so extremely similar regardless of how they're crossing. Needless to say though now that I have an alibaba source I can get a header made at actual spec. or at least request it and see what they say. As in: Suggest to the actual manufacturer of these headers: aka, not lextek or BW. let's not mix that part up. to put the O2 sensors per bank, instead of stacked in the collector as if that would actually make useful data for the ECU. We'll see. I'll post them some things and see what they say. my experience with ali manufacturers for fairings has been pretty much stellar. I hope these guys are just as reasonable and flexible. As I keep reading, they also offer the header in titanium. Hmm.

"please add additional details and specifications"

https://message.alibaba.com/msgsend/draftPo.htm?spm=a2700.details.maonnacta.dorder.24056eeaTg7LJG&amp;productId=60684155091&amp;id_f=IDX12py7w2pdIxXHePTpPfiPgPCW9USkE8CWQnjD0LsJexWZchrvPrFJ_JHtYEStDmBZ&amp;mloca=po_en_detail&amp;tracelog=from_detail go ahead. click that. lol

I'm not sold on BW having gotten me the correct facts, as a matter of fact. I'm however sold on Alibaba, BW, and Lextek all having the same header. lol

honestly though, I was mad, but they're close. chop them at the first weld, and put some 35.5mm ID tubing in there, which is cheap and cheerful, and you're golden. at some point, it's all custom. I am more than likely going to have to contact someone to bend and weld similar front primaries to get it to work on my RC79 (Oh yes I will.) so there's that. at some point there's going to be some silly dyno after I've gotten all the factory power out of the '14 VFR

while I believe that it does neck up to 36mm, is 29mm a match for the cyl head or is someone smoking crack at BW causing exhaust gas to rapidly slow down after it exits the cyl head?

*cracks knuckles* Here. we. go. https://www.blackwidowexhausts.co.uk/vfr800f-vfr-800-1998-2003-rc46-exhaust-collector-down-pipes-228-p.asp "An all new design concept from the Black Widow Performance Department." Meanwhile after a BW rep send me the specs as measured...... that's a 29mm ID primary at the port boys.

The good news is: That's two EU and one USA sources Might be able to find it on aliexpress and haggle a bigger bore setup from them directly. resellers and pretenders never do anything about their products.

Airisom: Don't misunderstand my position, I'm not trying to heckle or flame you, I'm questioning your thought process in case you had examined both headers sets of sales pictures as I have. if I seem hot under the collar it's because we've once again been purposefully lied to. black widow didn't develop shit. both headers obviously were designed in the same house. Any differences are exceptionally minor when you consider the way they are welded together, the steps of the primary tubes lining up as if the same thought process brought them about, and the same two o2 bungs in the same (wrong) spot on the main collector all point to the same house slapping them together. And while it's not a bad design all in all, it's disingenuous as fuck telling VFR owners for an entire year that you're designing a racing header and get handed something that is 98 spec primaries and nothing more. Even after we gave them the data. even after they'd seen the dyno curves laid out. it's disingenuous pretending you have a pulse on what a bike needs and then deliver a stock ass header. I haven't asked BW about their ID's but I'm 99% certain I don't have to.