![]() The top end pull is so strong and fast you must pay attention to the rpms or you will hit the rev limiter before you know it. So how to describe the increase in performance? The low end is as strong if not stronger than stock, throttle response is instantaneous, the midrange is quite a bit stronger and now the motor just revs freer all the way to red line. Aggressive in a good way, the drivability is still good though the throttle response is instant and requires re-calibrating your right hand to adapt to the new instant acceleration. The bike’s motor performs well but is docile, with the “S2B Performance Package” it is a completely different motor, might I even say aggressive. The dyno graph on Brocks site is impressive but to feel the performance gains is something entirely different. The performance gains from these components combined is nothing short of amazing. I then received the ECU and the velocity stacks and installed them. So, with just the exhaust I found the midrange and top end rpm performance to be phenomenal. Then as I went to purchase the ECU Flash with Fuel tune I discovered the velocity stacks and decided to give them a try. ![]() Myself, I wanted to maximize the performance of the motor and initially purchased and installed the full Street Meg exhaust before Brocks released the “S2B Performance Package”. Brock can tell you exactly how much it contributes to the overall performance. ![]() How much it contributes to the overall performance when used with rest of the "S2B Performance Package” is hard to quantify. This part is just one component developed to increase the performance of the Z900RS. I'm glad I went ahead and installed these while I had everything apart. DOH! Anyway, hope this helps someone else out there who has the same troubles I did. After struggling excessively to install them, I was told by another rider to heat them with an air dryer until they are pliable enough to go through the holes easier. I had a lot of trouble fitting them into the airbox, as the rubber is very stiff. The kit only includes 2 stacks, as 2 of the OEM units are retained, though in different locations. I can say that the stacks are of great quality, right on par with the stock tubes. I trust Brock's judgment when it comes to tuning a motorcycle like this and just went ahead and installed them at the same time as the rest of the mods. I haven't run the bike on the dyno with and without these stacks, so cannot say for certain how much better they allow the bike to run. I purchased this kit to go along with the other components of the Stock to Brock's package. where previously the motor dropped off above 8k it now pulls clean and hard to the rev limiter. I suspect this product along with the filter were largely responsible for the improvement above 8k rpm. The package created significant gains across the entire Rev range including a peak of 116.7 HP at 10k RPM. Brock don’t f**k around!Ĭombined with a sprint filter, a full exhaust system and ECU tuning, these worked well. Maybe heating the stacks up in some boiling water prior to installation would work. I took some advice and heated the rubber up with a hair drier and lubed them up with some silicone. Trying to push and bend that rubber of the stacks is a major undertaking. installing the two new stacks and relocating the two outer ones. Taking the tank off and the airbox took some time as I had never done it before. We focus on enthusiasts industries including powersports, racing and motorcycles.Figured I would add these because they supposedly add a couple of hp and help the engine breathe. "V" Stacks and the entire line of Aeromach products can be seen at #Īeromach USA builds a line of quality chrome billet parts for v-twin and metric cruisers including Harley Davidson, Victory, Road Star, Royal Star, V Star, Vulcan Classic, Nomad, Drifter, Valkyrie, Aero, Ace, VTX, Intruder, 1500 LC and custom motorcycles.īiker Pros - We are a publicity company that increases brand awareness, leads and sales by executing targeted campaigns through publicity, social media, video and podcasts. Aeromach's "V" Stacks are made in America by metal craftsmen. They then are finished in show-quality chrome. “And even though the Valkyrie has been out of production since 2003, enthusiasts still are requesting the "V" Stacks to upgrade their current ride.”Įach stack is machined from solid aluminum billet on computer-controlled CNC machines. ”The Honda Valkyrie is one of those traffic-stopping motorcycles that even non-bikers are simply fascinated by,” explained Paul Aiken, Aeromach USA President. Stacks mount using three stock phillips head screws, with dealer installation recommended. Details at Īeromach's "V" Stacks are aesthetically pleasing and do not alter the engine dynamics. Aeromach Velocity Stacks PRLog - Aeromach's Velocity “V” Stacks Are Back in Inventory, Available & Shipping - Aeromach USA is supplying "V" Stacks to Honda owners of the 1997 through 2003.
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