{"product_id":"spark-exhaust-grid-o-full-exhaust-system-stainless-steel-titanium","title":"Spark Exhaust Grid-O Full Exhaust System Stainless Steel \/ Titanium Kawasaki ZX-4RR (2023-2026) GKA8851T","description":"\u003cp\u003eThe Spark Exhaust Grid-O full exhaust system for the Kawasaki ZX-4RR represents the pinnacle of Italian craftsmanship — a race-bred, mixed-material assembly that sheds 3.6 kg from the stock system while delivering the kind of aggressive, spine-tingling note already heard echoing through Moto2 and World Superbike paddocks worldwide.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMassive 3.6 kg weight reduction over the stock exhaust (from 9.4 kg down to 5.8 kg), directly improving chassis balance and agility\u003c\/li\u003e\n\u003cli\u003eStainless steel header combined with a titanium slip-on silencer and titanium end cap — materials chosen for their exceptional temperature resistance and long-term durability\u003c\/li\u003e\n\u003cli\u003eGrid-O silencer proven in Moto2 and WorldSBK competition, offering outstanding flow characteristics and an aggressive, race-quality exhaust note\u003c\/li\u003e\n\u003cli\u003eRemovable dB-Killer (part number G9980) included — install it when the circuit requires noise compliance, remove it for maximum performance\u003c\/li\u003e\n\u003cli\u003eCompatible with the original passenger footpeg; dedicated silencer-to-chassis mounting bracket included in the kit\u003c\/li\u003e\n\u003cli\u003eHandmade in Italy — every weld and joint produced to the exacting standards that define Spark Exhaust's reputation in professional motorsport\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBuild Quality and Materials\u003c\/h2\u003e\u003cp\u003eWhere many aftermarket systems compromise either weight or longevity, the GKA8851T refuses to choose. The header is fabricated from premium stainless steel, providing the corrosion resistance and structural rigidity a four-cylinder inline engine demands under sustained high-rpm use. The silencer body and end cap are crafted from titanium — a material that simultaneously reduces rotating and unsprung mass and withstands the extreme thermal cycles a track day or championship race inflicts on every component. The result is a system that will not warp, discolour prematurely or fatigue under the conditions it was designed to meet.\u003c\/p\u003e\u003ch2\u003eTrack Performance and Sound\u003c\/h2\u003e\u003cp\u003eThe Grid-O canister is not a road silencer repurposed for the track — it is a genuine competition-developed piece used at the highest levels of circuit racing. Without the dB-Killer fitted, the system produces 107 dB at 5,500 rpm, delivering the full, uninhibited exhaust note that characterises a motorcycle tuned for outright lap time. When noise regulations apply, the included G9980 dB-Killer drops the output to a compliant level without requiring any permanent modification to the system.\u003c\/p\u003e\u003cp\u003eTo extract the maximum performance benefit from this exhaust, Spark Exhaust and Inter-Pace both recommend a bespoke race ECU map or a dyno remap calibrated specifically to the GKA8851T's flow characteristics. The improvement in throttle response and mid-to-top-end power delivery will be most apparent once the fuelling is optimised to match.\u003c\/p\u003e\u003ch2\u003eFitment and Compatibility\u003c\/h2\u003e\u003cp\u003eThe GKA8851T is designed and tested specifically for the Kawasaki ZX-4RR across model years 2023 to 2026. It is compatible with the original passenger footpeg in its standard position. A dedicated mounting bracket for attaching the silencer to the chassis is supplied as part of the kit; an optional additional chassis bracket is available separately for riders who require further mounting customisation.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePart Number: GKA8851T\u003c\/li\u003e\n\u003cli\u003eType: Full exhaust system (header and silencer)\u003c\/li\u003e\n\u003cli\u003eFitment: Kawasaki ZX-4RR, 2023–2026\u003c\/li\u003e\n\u003cli\u003eHeader material: Stainless steel\u003c\/li\u003e\n\u003cli\u003eSilencer material: Titanium\u003c\/li\u003e\n\u003cli\u003eSilencer end cap material: Titanium\u003c\/li\u003e\n\u003cli\u003eStock exhaust weight: 9.4 kg\u003c\/li\u003e\n\u003cli\u003eInstalled weight: 5.8 kg\u003c\/li\u003e\n\u003cli\u003eWeight saving: 3.6 kg\u003c\/li\u003e\n\u003cli\u003eSound level: 107 dB at 5,500 rpm (dB-Killer removed)\u003c\/li\u003e\n\u003cli\u003edB-Killer: Removable, part number G9980 (included)\u003c\/li\u003e\n\u003cli\u003eOrigin: Made in Italy\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Spark Exhaust","offers":[{"title":"Default Title","offer_id":53168856531210,"sku":"GKA8851T","price":1488.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/GKA8851T.png?v=1780817860","url":"https:\/\/inter-pace.com\/products\/spark-exhaust-grid-o-full-exhaust-system-stainless-steel-titanium","provider":"Inter-Pace","version":"1.0","type":"link"}