Zipper’s Muscle 124/128 Stage 4 kit for M8 engines
$0.00
This is it, horsepower junkies – The Big Gun!
FOR 2017-2023 1st GENERATION M8
Zipper’s engineering team developed the Muscle 124 and 128 Stage 4 kits for riders who want to win, every time. Careful testing of the latest technologies and components yields incredible power from the M8 platform on pump gas. Cylinder heads receive Zipper’s CNC porting to Stage IV specs for maximum flow using +2mm oversize stainless valves, and Zipper’s 4.250” bore cylinders are fitted with 12:1 thermal and friction coated pistons. Our Red Shift 588 cam optimizes the output of these powerful components; careful selection of intake, exhaust and tuning delivers impressive results to 6500 RPM. This is not a bolt-on kit. It requires strengthening of the engine base and drive line upgrades – not unexpected when you are almost doubling the factory output – and should be executed by an experienced professional. “Walk softly, but carry a Big Gun!”
Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.
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Hawg Werks LLC Hawg Werks LLC –
I have a shop in the Dayton Ohio area. I have a customer that bought a 128-kit made by another supplier and had it installed by another shop. He was just not happy at all with the power and performance. He came to me to consult, and we went with the Zippers 128 Muscle Kit. I did before and after dyno runs on the bike and the Zippers kit made 35 more horsepower and 28 more pounds of torque. The customer Loves the bike now and can’t believe the difference in performance. I have installed many Zippers of Sleeper, Pro Touring and Muscle kits over the years. Zippers does a Lot of R&D, Engineering and Dyno Testing when putting the correct parts together to build a kit. It is all about the right combination of parts and the support behind them that give the best results.