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Discussion Starter #1
Requesting Senior/Experienced guys to respond on below:

1. What will be the impact/performance after removing baffles from Stock Exhaust.

2. What will be the impact/performance if we install VnH air filter & exhaust.


As per HD India they void complete engine warranty in above both cases.

Please suggest.....

Thanks in Advance!!!!

Regards,
Devender Singh (Delhi, India)
+91-9650477441
 

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Breathing mod

Requesting Senior/Experienced guys to respond on below:

1. What will be the impact/performance after removing baffles from Stock Exhaust.

2. What will be the impact/performance if we install VnH air filter & exhaust.


As per HD India they void complete engine warranty in above both cases.

Please suggest.....

Thanks in Advance!!!!

Regards,
Devender Singh (Delhi, India)
+91-9650477441
Devender:
The expected result would be an engine that runs lean and works the cooling system hard. The sound would be loud from tail pipe. Also you might loose torque and HP due to insuficient back pressure. This would void warranty on damage to anything directly resulting from the mod. The mod could be theoretically acceptable with an accompanying tuning of your ECM or fuel management system. Harley has all kinds of statements out there about void of warranty, but the Motor Company needs to prove damage as the result of "abuse" or you need to prove that it isn't. Sometimes the fight is not worth the hassle.
Just increasing air intake or exhaust flow separately does not affect the performance much so the O2 sensors can compensate for the small changes. Your bike will still be either constapated or have asthma.
What I would suggest is to get the SE muffler and air cleaner and HD fuel remap download or do another tuned setup. It promises to be cheaper, won't "void the warranty." And you get to keep the stock muffler to sell or keep
 

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Yes, absolutely. There is also a company on this forum offering pipes for the Street. You might get by with the Stage 1 download from HD, but I would recommend a download for specifically the setup you choose. If you can't find a download providor, you might need to have a specialist tune the ECM on your bike with a dynomomiter (dyno). Tuning time can be expensive.
Another option would be to buy a fuel management system unit that reprogramms the fuel delivery amounts to the injectors. The kind I have used have 4 pods: one of them sets fuel at idle RPM; another sets fuel for cruising speed; the third sets FOT; the last sets the RPM that the second pod kicks in. With a little acquired skill, you can set the pods by riding and dialing the pods up or down till you find best performance feel. On the dyno a tech can do it more precisely.
I thought about a caviat. I don't know if the header has a catalitic converter. If it does, it would need to be gutted before any dyno tuning so the O2 sniffer device can get to each cilinder's exhaust pipe through the muffler. Does anybody know if the Streets in the USA market have Cats? I think they must.
 

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what's best and needed

It looks like you have all you need layed-out. Does the PowerCommander come preprogramed? If not you will need to do that if it has PODS to dial in.
The Screemin Eagle air cleaner is made by K&N. The SE Exhaust is made by SuperTrap (one of the best makers of tunable exhausts). On my Street 500 stock configuration, my max speed was 86 MPH on the spedometer. Withe the SE, Stage 1 mods, my max speed is 103 MPH which is a fenominal improvement. You can tune the SuperTrapp for HP or tork by adding, or subtracting diffusion disks. The more disks you add, the more HP and louder it gets (highway cruising). Removing disks makes more tork and less noise (in-town accelleration needs). Removing the back plate is equivalent to adding disks.
If I install all three performance part of VnH . Anything required more apart from this tuning and all that?



Thanks,
Devender Singh Brar
[email protected]
Sent from my iPhone
 

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Discussion Starter #12
Thanks buddy . Please like "Street Hawks Lovers" fb page.
FYI: VnH has removed Dynojet PC from there website . Might be there is some issues with that


Thanks,
Devender Singh Brar
[email protected]
Sent from my iPhone
 

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Thanks buddy . Please like "Street Hawks Lovers" fb page.
FYI: VnH has removed Dynojet PC from there website . Might be there is some issues with that


Thanks,
Devender Singh Brar
[email protected]
Sent from my iPhone
Took a look at your page, great information to be had their. I like how you update the page with products that have recently come out, great way to discover new parts.
 

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I'm interested in the Vance and Hines VO2 Naked Air Intake Kit (MSRP $139.93 sale price $125.95) and the Vance and Hines Skull Cap (MSRP $49.94 sale price $44.95) so I thought I would provide the direct links to them for others.


Vance & Hines VO2 Naked Air Intake Kit For Harley Street 2015 - RevZilla


Vance & Hines Skull Cap V02 Air Cleaner Insert - RevZilla


A bit expensive (IMHO) for what is fundamentally nothing but an air cleaner but for my chopper project it does fit the final appearance I'm looking for. Others maybe more concerned about performance but I believe my 750 already has the performance I need so for me it's all about appearance.
 
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I'm interested in the Vance and Hines VO2 Naked Air Intake Kit (MSRP $139.93 sale price $125.95) and the Vance and Hines Skull Cap (MSRP $49.94 sale price $44.95) so I thought I would provide the direct links to them for others.


Vance & Hines VO2 Naked Air Intake Kit For Harley Street 2015 - RevZilla


Vance & Hines Skull Cap V02 Air Cleaner Insert - RevZilla


A bit expensive (IMHO) for what is fundamentally nothing but an air cleaner but for my chopper project it does fit the final appearance I'm looking for. Others maybe more concerned about performance but I believe my 750 already has the performance I need so for me it's all about appearance.
Thanks for posting the direct links. They do indeed look great, and worth the extra you pay I find.
 

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Thanks for posting the direct links. They do indeed look great, and worth the extra you pay I find.


I'm still looking at spending over $170 just to get a chrome air cleaner to replace the stock plastic one and that's a bit expensive IMHO.


I'm tempted to create my own instead but that's a lot of work and hassle.
 

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Guys,

I'm still new to performance mods, is the stage 1 for street 750 a tuning kit ? or the air intake mod ?

how do I get this done for my street?
The stage 1 is a fuel map file that Harley will download to your bike for a hefty price tag. You DO need to tune your bike if you do BOTH the pipe and the air cleaner, due to the fact that the bike is getting more air, thus running too lean. The thing about the Harley downloads is that you get the tune (fuel map download) only that one time. If you were to change something such as putting the bike back to stock one day, you would need to pay again for a tune.

I have the V&H Competition Slip On exhaust and the VO2 air cleaner with one of their slotted covers. I use a V&H Fuelpak 3 for the tuning. Not only can you tune anytime, but you can see real time data from the FP3 as well on your smartphone or tablet. The FP3 also has an Autotune mode, which refines your tune even better than the supplied maps.
 
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