Kerker® - Sport Performance Series 4-1 Brushed Aluminum Headpipe

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Vehicle Fitment

KawasakiNinja ZX-11 1993-1994

Product Details

Sport Performance Series 4-1 Brushed Aluminum Headpipe by Kerker®. When it comes to absolute horsepower and killer looks, Kerker reigns supreme. In fact, in an independent shootout on the GSXR 600, Kerker’s slip-on system showed a 3.3% horsepower gain over the stock system. Round or elliptical, all Kerker Performance Exhaust Systems feature Dyno developed cores, lightweight billet CNC aluminum flange adapters or stainless steel headpipes and Silent Sport® sound absorption technology. Or in other words, the kind of stuff world championships are made of. They’re available in brushed aluminum, lightweight Carbon fiber, Mill Finished Titanium or Rainbow Finished Titanium, so you can expect a substantial increase in horsepower versus stock performance mufflers, as well as a weight reduction of between 3.5 to 4.5 pounds.


  • Remember to check your local or state laws regarding vehicle noise restrictions
  • This is a Race Only product that is to be used solely for competition. It cannot be used on vehicles that are operated on public streets, roads or highways. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state and federal laws. Shipping Restriction: CA, NY, ME


Case Shape: Round
Type: 4 into 1
Finish: Brushed Aluminum


  • Will set your bike free with exhilarating power and enhanced sound
  • Designed to give your motorcycle a stylish, bold look
  • Lighter than the stock part to improve bike’s performance
  • Engineered to offer long-lasting, hassle-free operation

Kerker® exhausts have a long-standing reputation for quality and satisfaction and have long been popular with both the racing circuit and the street rider. They deliver superior top end power in one of the most lightweight designs available. The systems feature Dyno-developed cores for optimum performance, billet CNC aluminum flange adaptors and packing specially engineered utilizing sound absorption technology. Kerker is also fast becoming known for styling innovation with round and elliptical canisters and sleek rainbow titanium finishes. Made in the U.S.A.

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Kerker® - Sport Performance Series 4-1 Brushed Aluminum Headpipe

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