{"product_id":"2009-15-cadillac-cts-sedan-carbon-fiber-rear-diffuser","title":"2009-15 Cadillac CTS-V Sedan DRY Carbon Fiber Rear Diffuser","description":"\u003ch5 data-end=\"408\" data-start=\"384\"\u003eProduct Overview\u003c\/h5\u003e\n\u003cp data-end=\"881\" data-start=\"409\"\u003eTransform the rear profile of your \u003cstrong data-end=\"478\" data-start=\"444\"\u003e2009–2015 Cadillac CTS-V Sedan\u003c\/strong\u003e with this \u003cstrong data-end=\"562\" data-start=\"489\"\u003eGM Factory Style Dry Carbon Fiber Rear Bumper Valance Diffuser Insert\u003c\/strong\u003e, designed to deliver a factory-fit appearance with an unmistakably premium performance aesthetic. Crafted for enthusiasts who demand both luxury refinement and race-inspired function, this carbon fiber diffuser insert provides a perfect balance of aggressive styling, aerodynamic efficiency, and OEM-level precision.\u003c\/p\u003e\n\u003cp data-end=\"1224\" data-start=\"883\"\u003eConstructed from \u003cstrong data-end=\"934\" data-start=\"900\"\u003e100% pre-preg dry carbon fiber\u003c\/strong\u003e, this rear valance insert is autoclave-cured for superior structural rigidity and lightweight performance. The \u003cstrong data-end=\"1084\" data-start=\"1046\"\u003eclear-coated 3K twill weave finish\u003c\/strong\u003e ensures long-term UV protection, maintaining the deep gloss and visible carbon texture that accentuates the CTS-V’s powerful rear design.\u003c\/p\u003e\n\u003cp data-end=\"1607\" data-start=\"1226\"\u003eUnlike wet carbon overlays or fiberglass alternatives, dry carbon fiber is engineered to be lighter, stronger, and heat-resistant—ideal for high-performance vehicles like the supercharged 6.2L CTS-V. This direct replacement fits seamlessly into the factory rear bumper valance, preserving Cadillac’s luxury contours while enhancing aerodynamic flow and downforce characteristics.\u003c\/p\u003e\n\u003cp data-end=\"1817\" data-start=\"1609\"\u003ePerfect for CTS-V owners seeking to modernize their appearance with a genuine carbon fiber upgrade, this piece provides the ultimate combination of factory elegance and motorsport-grade performance styling.\u003c\/p\u003e\n\u003chr data-end=\"1822\" data-start=\"1819\"\u003e\n\u003ch5 data-end=\"1844\" data-start=\"1824\"\u003eKey Features\u003c\/h5\u003e\n\u003cul data-end=\"3256\" data-start=\"1845\"\u003e\n\u003cli data-end=\"1971\" data-start=\"1845\"\u003e\n\u003cp data-end=\"1971\" data-start=\"1847\"\u003e\u003cstrong data-end=\"1873\" data-start=\"1847\"\u003ePrecision OEM Fitment:\u003c\/strong\u003e Designed exclusively for \u003cstrong data-end=\"1940\" data-start=\"1899\"\u003e2009–2015 Cadillac CTS-V Sedan models\u003c\/strong\u003e (does not fit standard CTS).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2095\" data-start=\"1972\"\u003e\n\u003cp data-end=\"2095\" data-start=\"1974\"\u003e\u003cstrong data-end=\"2005\" data-start=\"1974\"\u003eFactory Replacement Design:\u003c\/strong\u003e Directly replaces the OEM rear bumper valance insert for a clean, factory-correct look.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2264\" data-start=\"2096\"\u003e\n\u003cp data-end=\"2264\" data-start=\"2098\"\u003e\u003cstrong data-end=\"2140\" data-start=\"2098\"\u003ePremium Dry Carbon Fiber Construction:\u003c\/strong\u003e Manufactured using aerospace-grade pre-preg carbon fiber and autoclave-cured for maximum strength and ultra-light weight.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2399\" data-start=\"2265\"\u003e\n\u003cp data-end=\"2399\" data-start=\"2267\"\u003e\u003cstrong data-end=\"2300\" data-start=\"2267\"\u003eHigh-Gloss Clear Coat Finish:\u003c\/strong\u003e UV-protected clear coating ensures long-term shine and prevents fading, oxidation, or yellowing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2542\" data-start=\"2400\"\u003e\n\u003cp data-end=\"2542\" data-start=\"2402\"\u003e\u003cstrong data-end=\"2430\" data-start=\"2402\"\u003eLightweight and Durable:\u003c\/strong\u003e Up to 50% lighter than standard carbon fiber wet layups, maintaining Cadillac’s performance-oriented balance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2673\" data-start=\"2543\"\u003e\n\u003cp data-end=\"2673\" data-start=\"2545\"\u003e\u003cstrong data-end=\"2572\" data-start=\"2545\"\u003eNo Modification Needed:\u003c\/strong\u003e Fully compatible with OEM hardware and bumper geometry—no cutting, trimming, or drilling required.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2813\" data-start=\"2674\"\u003e\n\u003cp data-end=\"2813\" data-start=\"2676\"\u003e\u003cstrong data-end=\"2704\" data-start=\"2676\"\u003eAerodynamic Enhancement:\u003c\/strong\u003e Designed to smooth rear airflow and reduce drag, improving high-speed stability and visual aggressiveness.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2946\" data-start=\"2814\"\u003e\n\u003cp data-end=\"2946\" data-start=\"2816\"\u003e\u003cstrong data-end=\"2847\" data-start=\"2816\"\u003eHeat and Weather Resistant:\u003c\/strong\u003e Engineered to withstand daily road use, heat from exhaust outlets, and harsh outdoor conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3096\" data-start=\"2947\"\u003e\n\u003cp data-end=\"3096\" data-start=\"2949\"\u003e\u003cstrong data-end=\"2982\" data-start=\"2949\"\u003eLuxury Performance Aesthetic:\u003c\/strong\u003e Adds an authentic motorsport-inspired finish while preserving the sophistication of the CTS-V’s factory design.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3256\" data-start=\"3097\"\u003e\n\u003cp data-end=\"3256\" data-start=\"3099\"\u003e\u003cstrong data-end=\"3145\" data-start=\"3099\"\u003ePerfect Match for Carbon Package Upgrades:\u003c\/strong\u003e Complements other OEM-style dry carbon accessories, including lip splitters, mirror caps, and diffuser fins.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"3261\" data-start=\"3258\"\u003e\n\u003ch5 data-end=\"3283\" data-start=\"3263\"\u003eInstallation\u003c\/h5\u003e\n\u003cul data-end=\"3681\" data-start=\"3284\"\u003e\n\u003cli data-end=\"3325\" data-start=\"3284\"\u003e\n\u003cp data-end=\"3325\" data-start=\"3286\"\u003e\u003cstrong data-end=\"3323\" data-start=\"3286\"\u003eInstallation manual not included.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3402\" data-start=\"3326\"\u003e\n\u003cp data-end=\"3402\" data-start=\"3328\"\u003e\u003cstrong data-end=\"3369\" data-start=\"3328\"\u003eDirect bolt-on \/ clip-on installation\u003c\/strong\u003e using factory mounting points.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3448\" data-start=\"3403\"\u003e\n\u003cp data-end=\"3448\" data-start=\"3405\"\u003e\u003cstrong data-end=\"3446\" data-start=\"3405\"\u003eNo drilling or modification required.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3515\" data-start=\"3449\"\u003e\n\u003cp data-end=\"3515\" data-start=\"3451\"\u003eHardware not included — re-use OEM fasteners for best fitment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3580\" data-start=\"3516\"\u003e\n\u003cp data-end=\"3580\" data-start=\"3518\"\u003eEnsure the rear bumper surface is clean before installation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3681\" data-start=\"3581\"\u003e\n\u003cp data-end=\"3681\" data-start=\"3583\"\u003e\u003cstrong data-end=\"3634\" data-start=\"3583\"\u003eProfessional installation is highly recommended\u003c\/strong\u003e for optimal alignment, security, and finish.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"3686\" data-start=\"3683\"\u003e\n\u003ch5 data-end=\"3717\" data-start=\"3688\"\u003eVehicle Compatibility\u003c\/h5\u003e\n\u003cdiv class=\"_tableContainer_1rjym_1\"\u003e\n\u003cdiv class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003cbr\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003eType Fits ALL 2009-2015 Cadillac CTS-V Sedan Models ( Does NOT Fit CTS Base Models )\u003c\/span\u003e\u003cbr\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\" data-end=\"4039\" data-start=\"3719\"\u003e\n\u003cthead data-end=\"3749\" data-start=\"3719\"\u003e\n\u003ctr data-end=\"3749\" data-start=\"3719\"\u003e\n\u003cth data-col-size=\"sm\" data-end=\"3726\" data-start=\"3719\"\u003eYear\u003c\/th\u003e\n\u003cth data-col-size=\"sm\" data-end=\"3733\" data-start=\"3726\"\u003eMake\u003c\/th\u003e\n\u003cth data-col-size=\"sm\" data-end=\"3741\" data-start=\"3733\"\u003eModel\u003c\/th\u003e\n\u003cth data-col-size=\"sm\" data-end=\"3749\" data-start=\"3741\"\u003eTrim\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-end=\"4039\" data-start=\"3782\"\u003e\n\u003ctr data-end=\"3824\" data-start=\"3782\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3789\" data-start=\"3782\"\u003e2014\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3800\" data-start=\"3789\"\u003eCadillac\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3808\" data-start=\"3800\"\u003eCTS-V\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3824\" data-start=\"3808\"\u003eSedan 4-Door\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"3867\" data-start=\"3825\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3832\" data-start=\"3825\"\u003e2013\u003c\/td\u003e\n\u003ctd data-end=\"3843\" data-start=\"3832\" data-col-size=\"sm\"\u003eCadillac\u003c\/td\u003e\n\u003ctd data-end=\"3851\" data-start=\"3843\" data-col-size=\"sm\"\u003eCTS-V\u003c\/td\u003e\n\u003ctd data-end=\"3867\" data-start=\"3851\" data-col-size=\"sm\"\u003eSedan 4-Door\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"3910\" data-start=\"3868\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3875\" data-start=\"3868\"\u003e2012\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3886\" data-start=\"3875\"\u003eCadillac\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3894\" data-start=\"3886\"\u003eCTS-V\u003c\/td\u003e\n\u003ctd data-end=\"3910\" data-start=\"3894\" data-col-size=\"sm\"\u003eSedan 4-Door\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"3953\" data-start=\"3911\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3918\" data-start=\"3911\"\u003e2011\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3929\" data-start=\"3918\"\u003eCadillac\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3937\" data-start=\"3929\"\u003eCTS-V\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3953\" data-start=\"3937\"\u003eSedan 4-Door\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"3996\" data-start=\"3954\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3961\" data-start=\"3954\"\u003e2010\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3972\" data-start=\"3961\"\u003eCadillac\u003c\/td\u003e\n\u003ctd data-end=\"3980\" data-start=\"3972\" data-col-size=\"sm\"\u003eCTS-V\u003c\/td\u003e\n\u003ctd data-end=\"3996\" data-start=\"3980\" data-col-size=\"sm\"\u003eSedan 4-Door\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"4039\" data-start=\"3997\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"4004\" data-start=\"3997\"\u003e2009\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"4015\" data-start=\"4004\"\u003eCadillac\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"4023\" data-start=\"4015\"\u003eCTS-V\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"4039\" data-start=\"4023\"\u003eSedan 4-Door\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch5\u003eAbout Dry Carbon Fiber\u003c\/h5\u003e\n\u003cp style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-outline-level: 3;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 13.5pt; line-height: 115%;\"\u003eDry Carbon Fiber vs Wet Carbon Fiber — What’s the Difference?\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;\" class=\"MsoNormal\"\u003eNot all carbon fiber parts are made the same. The biggest distinction comes down to \u003cb\u003ehow the carbon is processed\u003c\/b\u003e — commonly known as \u003ci\u003edry carbon\u003c\/i\u003e and \u003ci\u003ewet carbon\u003c\/i\u003e. Both use genuine carbon fiber weave, but the production method, finish, and performance are completely different.\u003c\/p\u003e\n\u003cp style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-outline-level: 4;\" class=\"MsoNormal\"\u003e\u003cb\u003eManufacturing Process\u003c\/b\u003e\u003c\/p\u003e\n\u003cp style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;\" class=\"MsoNormal\"\u003e\u003cb\u003eDry carbon fiber\u003c\/b\u003e parts are produced using a \u003cb\u003epre-preg (pre-impregnated) carbon cloth\u003c\/b\u003e, where the exact amount of resin is pre-applied by the manufacturer. These sheets are then vacuum-sealed and \u003cb\u003ecured under high pressure and temperature in an autoclave\u003c\/b\u003e, removing excess air and resin.\u003cbr\u003eThe result is a light, extremely strong, and precisely formed component — the same process used in \u003cb\u003emotorsport and aerospace\u003c\/b\u003e applications.\u003c\/p\u003e\n\u003cp style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;\" class=\"MsoNormal\"\u003e\u003cb\u003eWet carbon fiber\u003c\/b\u003e, on the other hand, uses a \u003cb\u003ehand-lay or wet-lay\u003c\/b\u003e method. The carbon cloth is laid into a mold and \u003cb\u003eliquid resin is manually brushed or poured\u003c\/b\u003e over it before curing. Because it’s not vacuum-bagged or autoclave-cured, there’s usually more trapped resin and air pockets, leading to a heavier part and a less uniform finish.\u003c\/p\u003e\n\u003cp style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-outline-level: 4;\" class=\"MsoNormal\"\u003e\u003cb\u003eWeight \u0026amp; Strength\u003c\/b\u003e\u003c\/p\u003e\n\u003cp style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;\" class=\"MsoNormal\"\u003eDry carbon fiber is roughly \u003cb\u003e30–50% lighter\u003c\/b\u003e than wet carbon. This is due to the controlled resin ratio — just enough to bind the fibers without unnecessary weight.\u003cbr\u003eBy comparison, wet carbon or carbon-over-fiberglass parts can be \u003cb\u003eup to 70% heavier\u003c\/b\u003e, since excess resin and fiberglass layers add mass without increasing stiffness.\u003cbr\u003eFor reference:\u003c\/p\u003e\n\u003cul type=\"disc\"\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l1 level1 lfo1; tab-stops: list .5in;\" class=\"MsoNormal\"\u003e\n\u003cb\u003eCarbon Fiber Density:\u003c\/b\u003e ~1.55 g\/cm³\u003c\/li\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l1 level1 lfo1; tab-stops: list .5in;\" class=\"MsoNormal\"\u003e\n\u003cb\u003eFiberglass Density:\u003c\/b\u003e ~2.6 g\/cm³\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto;\" class=\"MsoNormal\"\u003eDry carbon also offers a much higher \u003cb\u003emodulus of elasticity (~125 GPa)\u003c\/b\u003e, giving it outstanding rigidity under stress — ideal for aerodynamic and high-load components.\u003c\/p\u003e\n\u003cp style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-outline-level: 4;\" class=\"MsoNormal\"\u003e\u003cb\u003eVisual \u0026amp; Structural Differences\u003c\/b\u003e\u003c\/p\u003e\n\u003cul type=\"disc\"\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l0 level1 lfo2; tab-stops: list .5in;\" class=\"MsoNormal\"\u003e\n\u003cb\u003eBackside:\u003c\/b\u003e A true dry carbon piece will look identical front and back — you can see the same woven pattern throughout.\u003cbr\u003eWet carbon or fiberglass-backed parts often have a dull, uneven underside with visible fiberglass texture or color variation.\u003c\/li\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l0 level1 lfo2; tab-stops: list .5in;\" class=\"MsoNormal\"\u003e\n\u003cb\u003eEdges:\u003c\/b\u003e Solid dry carbon has clean, uniform black edges.\u003cbr\u003eWet carbon or overlay parts may show a \u003cb\u003ewhite or grey line\u003c\/b\u003e along the edge, revealing the fiberglass underneath — sometimes hidden with black paint trim.\u003c\/li\u003e\n\u003cli style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-list: l0 level1 lfo2; tab-stops: list .5in;\" class=\"MsoNormal\"\u003e\n\u003cb\u003eFinish:\u003c\/b\u003e Dry carbon typically has a consistent matte or satin finish, while wet carbon can appear glossy but uneven due to hand-applied resin.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1910\/0467\/files\/t_4.png?v=1761329132\"\u003e\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/h3\u003e","brand":"Extreme Online Store","offers":[{"title":"Carbon Fiber \/ CTS-V","offer_id":47619739222116,"sku":"VENT-629-BKCF","price":429.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/8413\/6804\/files\/WM_1f7876c8-f371-4dbb-bb82-b8bb27822eb1.png?v=1767222542","url":"https:\/\/4thto5thautomotive.com\/products\/2009-15-cadillac-cts-sedan-carbon-fiber-rear-diffuser","provider":"4thto5thAutomotive","version":"1.0","type":"link"}