![]() Silencer tabs are heavy gauge 6061T-6 for durability. Silencers are heavy gauge 6061T-6 tubing with over-size billet 6061T-6 end caps. You can give or take clearances throughout the run of the pipe for an excellent fit.Ĭhamber body seams are tig welded to ensure the cleanest welds.Įach pipe is bore-scoped for inspection of unwanted welding rod protrusions and distortion.Įxhaust flanges are double Viton o-ring equipped to minimize leakage at cylinders. With special attention given to sparkplug access, petcock access and clearance of larger than normal heads, filters etc., specially designed mandrel bent stinger tubes, along with the chambers themselves can be adjusted infinitely for clearance issues from front to rear. This technology has only existed for factory road race teams in the past, but is now available in this design for your own enjoyment. Each individual section of these expansion chambers are velocity and resonance matched from start to finish. The end result is unparalleled pressure wave amplitude manipulation. These results are made possible by constructing the pipe with maximum scavenging, trapping, and charging efficiency calculations via specialty engine software developed by Gary Bilby of Sniper Racing Products. You are also no longer required to run un-silenced out of frame drag pipes to produce the most power, we’ve got you covered. No more trade-offs between mid range torque and peak HP, you can have your cake and eat it too! Bottom line.the ultimate drag pipe, but not just a drag pipe. On gas 421's we’ve achieved more than 10 peak HP increase over any other pipe in existence, while maintaining as much mid range torque, and developing this HP and torque earlier than any pipe in existence. End result is a pipe that hits earlier,harder, and continues until unmatched peak HP is obtained at rated rpm with excellent over-rev as well. Keeping in mind that correctly designed blowdown pressures in reference to exhaust area at rated rpm for transfers and exhaust ports are going to work best, but this is usually the case with any 2 cycle engine with any pipe.( I can supply more specific data specifications on a personal level when ordering.) Instead of trying to design a system that works well on all engines, we decided to narrow the focus on engine design and provide a spectacular design for the above formats. Typically any triple port or modified trapezoid exhaust port designs in this cc range will fall into the desired engine classification for these pipes. ![]() Engines 400cc-500cc with high BMEP porting designs will also benefit from our efforts. Starting with a mathematically correct mid-bore 421cc Cheetah Cub engine, weve designed a exhaust system specifically tuned for this format, although not just for the 421cc Cub. If you haven’t already been following some of the information I’ve already released, here’s a breakdown of what we’ve created. Purely scientifically inspired, they are the standard all inframes will be measured by. After exhaustive research and development and manufacturing hurdles, Sniper Racing Products in conjunction with Passion Racing Engines is finally able to offer the hardcore Banshee enthusiast the new standard in expansion chamber technology. It's official, Sniper Assassin inframes are available for delivery.
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