Limited Time Sale$4,164.96 cheaper than the new price!!
| Management number | 206533789 | Release Date | 2025/11/01 | List Price | $1,784.99 | Model Number | 206533789 | ||
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This is the complete kit you need for over 140+ horsepower on pump gas! Looking for even more? You can go to our stage 2 big bore kit. Proven reliable and to have arm ripping power without having all the extra weight and extra components of a turbo. We have spent more time on the dyno than anyone in the industry to perfect our performance modifications. Our goal is the most power for the money, and we definitely deliver! This kit starts off by adding the 1065cc big bore kit with forged pistons. This is a stock cylinder bored out to 96mm which requires an exchange cylinder to be sent in. We then professionally port your cylinder head, add our billet intake manifolds, and bore your throttle body. Our high performance cams are added to rapidly increase horsepower and torque. With this extreme amount of airflow, you need an exhaust that has been performance tested to flow for these mods. Look no further than our full system which comes ceramic coated for long life and to hold heat inside the exhaust. We then add our Bully Dog Gauge Tuner which no longer lets the stock ECU limit your throttle by wire. This is huge because when you add horsepower on these models, it can be thrown out the window so quickly. Other manufacturers may deliver horsepower but we make sure it's always on tap. This programmer comes with our base tune for a stock machine and the tune for this complete big bore which optimizes the TBW, fuel, and timing curves. This has a 9000 RPM rev limit and a 90 MPH speed limiter. Lastly, this power needs to hit the dirt hard! Our fully adjustable Stage 2 clutch kit has settings just for your big bore setup and really puts the hurt on the dirt! Choose from 2 different stages.
Choose your stage! Stage 1 uses stock valves. Stage 2 upgrades to +4mm exhaust valves This also comes with new guides & seals for the exhaust valves. Stage 3 upgrades to +4mm exhaust and +1mm intake valves, heavy duty rods, heavy duty buckets, and Kibblewhite valve springs. All heads are assembled and shimmed for you to ensure proper setup.
Stage 1 (140-142 HP):
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