Brock's Performance

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30 FAQs Found
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Does Brock's recommend the use of K&N or BMC aftermarket street or race air filters?
 
I replaced the K&N air filter with the stock air filter and ran redline fuel injector cleaner thru the system. New result is 157.87 hp @ 92.61 ft/lbs. (higher ambient temp /lower humidity) When I changed the filter, the idle dropped, and I had to adjust the idle up to keep it running. I would think this is more restriction? The dyno shows the bike is now running richer than with the K&N filter, but producing more power?? People have suggested dyno tuning the bike, I wanted to get yor input before doing this.
 
A fellow Hayabusa rider forwarded me the Airbox mod procedure. I don't have a Power Commander yet but wanted to know if this modification would improve my mileage and horsepower. I have OEM air filter and Yoshimura Bling 22 4-into-2 exhaust.
 
I have a street megaphone on a Hayabusa with small box mod, stock filter, PC3USB, 87 pump gas? I have a flat spot with hesitation from 2500 to about 3300. Which map do you recommend for it? Don't want it to run too lean.
 
Do you have or recommend a ZX-14 smog valve removal kit that helps my bike's performance? I have a full Brock system, Power Commander, BMC filter, and secondary plates removed.
ZX-14 Smog / Pair Valve Block Off 
I have a 2007 Hayabusa with your GEN 3 Streetsmart system and power commander. Based on your knowledge I have removed the TRE & K&N Filter. The bike now has flames coming out of the pipe? Any reason why? What could that be?
 
I own an '07 ZX14 with PCIIIUSB, Roaring Toyz low-exit megaphone exhaust, Pipercross air filter & a custom map by a local custom tuner. Not too happy with the results & other people & tuners have told me it's the pipe. A common recommendation is the Brock's ShortMeg. Is there or has there been any testing against these 2 exhausts. Any comments or advice would greatly be appreciated.
 
2002 Hayabusa 1397. I have your piston kit, intake cam, exhaust cam, sidewinder. Also PC III USB, 10 inch over swingarm, 60hp shot wet nitrous. It has no air filter(block-off plate) and used as a track bike only. 1. What type of fuel do you rec? 2. Do you have a map available? 3. Should I run baffle or not? 4. What be proper gearing, I weigh 200 lbs? 5. I have a MRE lock-up, should I run your spring package as a baseline? 6. How much can you safely spray until you have to take timing out?
 
I have a K&N with your street smart carbon fiber system. Our humidity, temp, and dewpoint are MUCH DIFFERENT than your area. Humidity and temperature combo is especially different. What should I do?
 
Will running MR12 require mapping changes compared to Brock's street maps?
 
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