{"product_id":"hks-silent-hi-power-exhaust-11-16-honda-cr-z","title":"HKS Silent Hi-Power Exhaust for 11-16 Honda CR-Z","description":"\u003cul\u003e\n\u003cli\u003eSilent Chamber reduces noise effectively. \u003c\/li\u003e\n\u003cli\u003eDurable SUS304 Stainless Steel Construction \u003c\/li\u003e\n\u003cli\u003eCompatible with 2011-2016 Honda CR-Z \u003c\/li\u003e\n\u003cli\u003eAvailable in Catback or Axleback Setups \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- split --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#Description\"\u003eDescription\u003c\/a\u003e\u003c\/li\u003e\n \u003cli\u003e\u003ca href=\"#VehicleFitment\"\u003eVehicle Fitment\u003c\/a\u003e\u003c\/li\u003e  \u003cli\u003e\u003ca href=\"#TechnicalData\"\u003eTechnical Data\u003c\/a\u003e\u003c\/li\u003e  \u003cli\u003e\u003ca href=\"#InstallGuide\"\u003eInstall Guide\u003c\/a\u003e\u003c\/li\u003e \u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\n\n\u003cli class=\"active\" id=\"Description\"\u003e\n\u003ch3\u003eHKS Silent Hi-Power Exhaust - 2011-2016 Honda CR-Z\u003c\/h3\u003e\n\n\u003cp\u003eMost performance exhausts make you choose between flow and volume. The Silent Hi-Power is HKS's answer to that, and the numbers back it up. HKS measures it at 87dB closed and 55dB at idle, against a stock CR-Z at 88dB and 54dB. That's essentially factory volume with a genuinely better exhaust behind it, which is exactly what a lot of CR-Z owners want.\u003c\/p\u003e\n\n\u003ch4\u003eThe Silent Chamber Is The Whole Trick\u003c\/h4\u003e\n\n\u003cp\u003eHere's how it works, and it's more clever than just packing a muffler with more material.\u003c\/p\u003e\n\n\u003cp\u003eThe Silent Hi-Power muffler contains a chamber designed to cancel sound waves rather than simply absorb them. Sound is a pressure wave, and if you reflect part of that wave back so it meets the incoming wave out of phase, the two partially cancel. That kills volume without adding the restriction you'd get from just stuffing more baffling in the path.\u003c\/p\u003e\n\n\u003cp\u003eThe result is an exhaust that flows properly while staying quiet, rather than one that's quiet because it's choked. That distinction matters, and it's why this is a different product from a restrictive stock-style muffler.\u003c\/p\u003e\n\n\u003ch4\u003eWho This Is Actually For\u003c\/h4\u003e\n\n\u003cp\u003eBeing straight about it. If you want your CR-Z to be loud, this is the wrong exhaust and you'd want the standard Hi-Power instead.\u003c\/p\u003e\n\n\u003cp\u003eThe Silent version is for someone who wants better flow, better construction, and a more refined tone without announcing themselves. Apartment parking garages, early departures, a commute you don't want to shout through, or simply a preference for a mature sound rather than a loud one. On a CR-Z specifically that suits the car, since it was never meant to be obnoxious.\u003c\/p\u003e\n\n\u003ch4\u003eCat-Back Or Axle-Back?\u003c\/h4\u003e\n\n\u003cp\u003eTwo versions, and the difference is how much of the system you're replacing.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003ecat-back (32016-AH030)\u003c\/strong\u003e replaces everything from the catalytic converter back, including the center pipe. More of the system, more flow improvement, and the full HKS design end to end.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eaxle-back (32016-AH025)\u003c\/strong\u003e replaces just the rear section. It's a more targeted upgrade focused on the muffler and tip, using SUS304 in the visible areas for appearance and SUH409 in the hidden sections, where it offers thermal and acoustic advantages at lower cost.\u003c\/p\u003e\n\n\u003cp\u003eGo cat-back if you want the complete system and the maximum flow benefit. Go axle-back if you mainly want the tone and the look for less money, or if your midpipe is already sorted.\u003c\/p\u003e\n\n\u003ch4\u003eTwo Fitment Exclusions\u003c\/h4\u003e\n\n\u003cp\u003eCheck both before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNot compatible with Modulo or Mugen rear under spoilers.\u003c\/strong\u003e If your CR-Z has either fitted, this exhaust won't clear it.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCVT cars are not certified.\u003c\/strong\u003e HKS notes the CVT is not adaptable for certification, so if emissions or JASMA certification matters for your situation, that's worth knowing.\u003c\/p\u003e\n\n\u003ch4\u003eSUS304 Stainless\u003c\/h4\u003e\n\n\u003cp\u003eBuilt from SUS304 grade stainless, which resists rust far better than mild steel and keeps its finish rather than dulling out. On a car now approaching fifteen years old, an exhaust that outlasts the rest of the car is worth having.\u003c\/p\u003e\n\n\u003cp\u003eThe axle-back uses SUS304 where you can see it and SUH409 in the concealed sections, which is a sensible use of materials rather than a cost cut, since SUH409 brings genuine thermal and acoustic benefits where appearance doesn't matter.\u003c\/p\u003e\n\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\n\u003cul\u003e\n    \u003cli\u003eMuffler style: HP (curl)\u003c\/li\u003e\n    \u003cli\u003eTip outside diameter: 65mm\u003c\/li\u003e\n    \u003cli\u003eCenter pipe diameter: 45-50mm\u003c\/li\u003e\n    \u003cli\u003eMaterial: SUS304 stainless (axle-back uses SUH409 in concealed sections)\u003c\/li\u003e\n    \u003cli\u003eSound level, closed: 87dB (stock 88dB)\u003c\/li\u003e\n    \u003cli\u003eSound level, idle: 55dB (stock 54dB)\u003c\/li\u003e\n    \u003cli\u003eJASMA approved\u003c\/li\u003e\n    \u003cli\u003eAdvantex glass wool packing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\n\u003cp\u003e2011-2016 Honda CR-Z\u003c\/p\u003e\n\n\u003cp\u003eCat-back: 32016-AH030, includes center pipe\u003cbr\u003eAxle-back: 32016-AH025, rear section only\u003c\/p\u003e\n\n\u003cp\u003eNot compatible with vehicles fitted with Modulo or Mugen rear under spoilers. CVT applications are not certified.\u003c\/p\u003e\n\n\u003ch4\u003eWho Should Run This Exhaust\u003c\/h4\u003e\n\n\u003cp\u003eThis is for the CR-Z owner who wants a proper HKS exhaust without the volume that usually comes with one. You get better flow, stainless construction, and a refined tone at essentially factory sound levels. Check your rear spoiler, pick cat-back or axle-back based on how far you want to go, and enjoy an exhaust nobody's going to complain about.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e 2011-2016 Honda CR-Z. \u003cstrong\u003ePart numbers:\u003c\/strong\u003e 32016-AH030 (cat-back, includes center pipe), 32016-AH025 (axle-back). \u003cstrong\u003eMuffler:\u003c\/strong\u003e HP curl style with Silent Chamber. \u003cstrong\u003eTip:\u003c\/strong\u003e 65mm outside diameter. \u003cstrong\u003eCenter pipe:\u003c\/strong\u003e 45-50mm. \u003cstrong\u003eMaterial:\u003c\/strong\u003e SUS304 stainless. \u003cstrong\u003eSound:\u003c\/strong\u003e 87dB closed, 55dB idle. \u003cstrong\u003eNot compatible with:\u003c\/strong\u003e Modulo or Mugen rear under spoilers. CVT not certified.\u003c\/p\u003e\n\u003c\/li\u003e\n\n \n\u003cli id=\"VehicleFitment\"\u003e\n \u003cp\u003e\u003cspan class=\"tag\"\u003e2011-2016 Honda CR-Z \u003c\/span\u003e\u003c\/p\u003e\n\u003cbr\u003e \n\u003c\/li\u003e\n\n\n\n\n\u003cli id=\"TechnicalData\"\u003e\n\n\u003c\/li\u003e\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\u003cli id=\"InstallGuide\"\u003e\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n","brand":"HKS","offers":[{"title":"Catback","offer_id":46607220408354,"sku":"HKS-32016-AH030","price":1150.0,"currency_code":"USD","in_stock":false},{"title":"Axle Back","offer_id":46607220441122,"sku":"HKS-32016-AH025","price":560.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2218\/5701\/files\/8fb0fd247592e2901f3c869da803314d.jpg?v=1787845239","url":"https:\/\/www.hybrid-racing.com\/products\/hks-silent-hi-power-exhaust-11-16-honda-cr-z","provider":"Hybrid Racing","version":"1.0","type":"link"}