Due to Material supply issues Rotobox production is now 8 to 10 weeks




We drop ship from M4 Exhaust. Please allow 1-3 days for processing. ETA's currently due to high demands are 4 to 5 weeks for most systems. We will contact you with ETA once we have processed your order
M4 Performance Exhaust universal header kit for the Z900. The 304 stainless steel system features equal length headpipes and a true high flow merge collector. The system will fit most aftermarket slip-on’s or even the stock muffler. Using the M4 header saves you 10lbs and produces 5+ horsepower over the stock pipe.
| SKU: | KA9000 |
|---|
The higher pressure cap stopped my overflow from becoming pressurized and blowing out. I did a combustion gas test on the cooing system and it passed all 3 times, so it made since the factory cap was to low of a rating for serve duty.
The internet provides many options. Not all are good. HHR provides top notch customer service and the best parts available.
quick shipper
awesome customer service
I ordered Avio fiber glass fairing and all necessary brackets for 2023 Yamaha r1. HHR answered all my questions by email and later by phone. The staff I communicated with were knowledgeable, straightforward, helpful, and non-judgmental. I've had been using the products for more than a year, and I have no complaints and am quite happy with it. I've heard it's easy to installl, too, but I had someone else do it, so I can't say if that's true. The bodywork has cutouts for the tail light and headlights. Works great.
Best store to buy
Always willing to help and with patience
One fine piece of carbon fiber. Light as a feather. Bike rides like a whole different monster
Weight of a feather. Super flickable, launches and rolls are noticeably more aggressive
Good price, delivery and fit.
Great track bodywork kit. Everything fit well. Excellent quality
Communication was on point and the fella worked with me on my address.
The good stuff
Awesome
Excellent fit and finish. Easy installation with no modification required
Supreme oversuspenion for my BMW M1000XR COMPETITION
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