{"product_id":"zefer-performance-gt63-s-e-performance-x290-downpipes","title":"Mercedes-AMG GT63 S E Performance X290 Downpipes","description":"\u003ch2\u003eZefer Performance Downpipes for Mercedes-AMG GT63 S E Performance X290\u003c\/h2\u003e\u003cp\u003eBuilt to order for the GT63 S E Performance four-door hybrid, these downpipes offer a choice of catless construction or 200-cell sport catalytic converters. The design focuses on improved exhaust flow, a more pronounced V8 exhaust note and bolt-on fitment for the correct vehicle configuration.\u003c\/p\u003e\u003ch3\u003ePerformance \u0026amp; Quality\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eApplication-specific bolt-on fitment for the X290 GT63 S E Performance.\u003c\/li\u003e\n\u003cli\u003eFlow-focused pipe routing to support a properly calibrated performance setup.\u003c\/li\u003e\n\u003cli\u003eCareful attention to fabrication, alignment and surface finish.\u003c\/li\u003e\n\u003cli\u003eChoice of catless or 200-cell sport-catalyst configuration.\u003c\/li\u003e\n\u003cli\u003eOptional performance heat shielding to help manage radiant exhaust heat around the downpipes.\u003c\/li\u003e\n\u003cli\u003eFinished-product photos emailed before your order leaves our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eChoose Your Configuration\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatless — $1,500:\u003c\/strong\u003e A catalyst-free configuration for competition applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e200-Cell Sport Cats — $2,200:\u003c\/strong\u003e A sport-catalyst configuration using 200-cell converters.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFinish \u0026amp; Heat-Shield Options\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Finish — included:\u003c\/strong\u003e Standard unshielded finish.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSandblast Finish — free:\u003c\/strong\u003e A satin, matte metallic appearance at no additional charge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance Heat Shield — add $400:\u003c\/strong\u003e Available with either catless or 200-cell sport cats.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSandblast finish and performance heat shielding cannot be combined.\u003c\/strong\u003e Choose one finish option when ordering. Heat-shielded pricing is $1,900 for catless or $2,600 for 200-cell sport cats.\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cp\u003eA downpipe set in your selected catalyst configuration and finish. Performance heat shielding is included when that option is selected.\u003c\/p\u003e\u003ch3\u003eFitment \u0026amp; Professional Installation\u003c\/h3\u003e\u003cp\u003eFor the \u003cstrong\u003eMercedes-AMG GT63 S E Performance X290 four-door hybrid with the M177 4.0L twin-turbo V8\u003c\/strong\u003e. Please provide your model year and VIN in the order notes so we can confirm the correct application before production.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eProfessional installation is strongly recommended.\u003c\/strong\u003e Bolt-on fitment describes the connection and mounting design; installation still requires proper access, alignment and clearance checks by an experienced shop.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e200-cell sport-cat installation:\u003c\/strong\u003e The larger catalyst housings may require the engine to be lowered slightly to provide clearance and position the downpipes correctly. Have your installer plan for this before scheduling the work.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCatless installation:\u003c\/strong\u003e The catless configuration does not have the same clearance issue associated with the larger 200-cell catalyst housings.\u003c\/p\u003e\u003ch3\u003eTuning \u0026amp; Calibration\u003c\/h3\u003e\u003cp\u003eProfessional tuning is recommended to calibrate the vehicle for its selected downpipes and supporting modifications. Have a qualified tuner review the setup and verify operation after installation.\u003c\/p\u003e\u003ch3\u003eMade-to-Order Production \u0026amp; Shipping\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEstimated production time is approximately 2–3 weeks, plus shipping time.\u003c\/strong\u003e Each set is made to order. We will email photos of your finished downpipes before they leave our warehouse. Please use a valid email address at checkout.\u003c\/p\u003e\u003ch3\u003eProduct Images\u003c\/h3\u003e\u003cp\u003eThe sandblast image is an illustrative finish preview of the catless configuration. Your selected configuration may differ in appearance. Photos of your completed order will be provided before dispatch.\u003c\/p\u003e\u003ch3\u003eTerms \u0026amp; Conditions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003ePlease read \u003ca href=\"https:\/\/zeferperformance.com\/policies\/terms-of-service\"\u003eZefer Performance's Terms of Service\u003c\/a\u003e and \u003ca href=\"https:\/\/zeferperformance.com\/pages\/return-policy\"\u003eReturn, Refund \u0026amp; Cancellation Policy\u003c\/a\u003e before placing your order.\u003c\/strong\u003e Made-to-order cancellation restrictions, return eligibility and applicable restocking fees are governed by those policies.\u003c\/p\u003e\u003cp\u003eIntended for competition applications. Confirm permitted use in your location before ordering; no road-use emissions certification is claimed for either configuration.\u003c\/p\u003e","brand":"Zefer Performance","offers":[{"title":"Catless \/ Standard Finish","offer_id":67853235814654,"sku":"ZP-X290-GT63SE-DP-CL-STD","price":1500.0,"currency_code":"USD","in_stock":true},{"title":"Catless \/ Sandblast Finish (Free)","offer_id":67853235847422,"sku":"ZP-X290-GT63SE-DP-CL-SB","price":1500.0,"currency_code":"USD","in_stock":true},{"title":"Catless \/ Performance Heat Shield (+$400)","offer_id":67853235880190,"sku":"ZP-X290-GT63SE-DP-CL-HS","price":1900.0,"currency_code":"USD","in_stock":true},{"title":"200-Cell Sport Cats \/ Standard Finish","offer_id":67853235912958,"sku":"ZP-X290-GT63SE-DP-200-STD","price":2200.0,"currency_code":"USD","in_stock":true},{"title":"200-Cell Sport Cats \/ Sandblast Finish (Free)","offer_id":67853235945726,"sku":"ZP-X290-GT63SE-DP-200-SB","price":2200.0,"currency_code":"USD","in_stock":true},{"title":"200-Cell Sport Cats \/ Performance Heat Shield (+$400)","offer_id":67853235978494,"sku":"ZP-X290-GT63SE-DP-200-HS","price":2600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0564\/4225\/7564\/files\/IMG-8467.png?v=1793049862","url":"https:\/\/zeferperformance.com\/products\/zefer-performance-gt63-s-e-performance-x290-downpipes","provider":"Zefer Performance","version":"1.0","type":"link"}