Sold Out
SPDZ1 16-23 Infiniti Q50 Q60 3.0T Twin Turbo Lower Downpipes VR30DDTT Q50 Q60 400Z VR30
Couldn't load pickup availability
Refresh
Sold by Carkart, an authorized reseller.
Returns accepted within 30 days | support@digipbestlanet.com
Verified
Shipping Information
Shipping calculated at checkout
Shipping cost and estimated delivery for this item will be shown at checkout based on your location.
Processing Time: 1–3 business days
Tracking number sent via email once dispatched
Orders over $250 require signature upon delivery.
Taxes calculated at checkout.
Returns & Refund
Returns accepted within 30 days of delivery.
Damaged or Defective Item
Free return shipping + replacement or full refund
Wrong Item Received
Free return shipping + replacement or full refund
Change of Mind
Return shipping at customer's expense · 25% restocking fee applies
Return Authorization (RA) number before sending.
View Full Return & Refund Policy
⚠️ California Proposition 65 Warning :
Your Cart
Item(s):
Total: $249.99
SPDZ1 16-23 Infiniti Q50 Q60 3.0T Twin Turbo Lower Downpipes VR30DDTT Q50 Q60 400Z VR30
$190.00
Sold Out
Unleash the true potential of your Infiniti Q50, Q60, or 2023+ Nissan 400Z with the SPDZ1 3" Lower Downpipes , engineered exclusively for the VR30DDTT 3.0L Twin Turbo platform.
Crafted from high-grade polished stainless steel , each SPDZ1 downpipe is precision-bent and TIG-welded to deliver maximum flow with minimal turbulence. The result: faster turbo spool, sharper throttle response, and noticeable horsepower gains across the powerband.
Whether you drive an Infiniti Q50, Q60, or the all-new Nissan 400Z, this bolt-on upgrade brings race-ready performance to your street machine — backed by the proven quality and design of SPDZ1.
Key Features
Fitment:
2016–2023 Infiniti Q50 3.0T (VR30DDTT)
2017–2023 Infiniti Q60 3.0T (VR30DDTT)
2023+ Nissan 400Z (Z34, VR30DDTT Twin Turbo)
Material: Premium polished stainless steel for long-term durability and corrosion resistance
Design: 4-inch high-flow mandrel bends with smooth transitions for maximum exhaust velocity
Performance: Improves turbo spool, throttle response, and top-end horsepower
Installation: Direct bolt-on fitment using factory mounting points — includes gaskets and hardware
Sound: Deep, aggressive exhaust tone with enhanced turbo acoustics
Recommended: Professional installation and tuning for optimal performance
Performance You Can Feel From the track to the street, SPDZ1 Downpipes are built for enthusiasts who demand power without compromise. Gain the sharper throttle response, faster spool, and exhilarating tone your VR30 twin turbo was meant to deliver — whether in your Infiniti or your Nissan 400Z .
SPDZ1 Product Warranty Registration
Purchased an SPDZ1 product from Speedzone? Register your SPDZ1 product here
FAQs
Have a question ? We are here to help.
Is the shipping free?
Yes, we offer free standard shipping on all orders within the United States.
When will I receive my item?
Domestic orders typically arrive within 3-5 business days . Delivery times are estimated and may vary depending on your location, weather conditions, or other unforeseen factors.
Can I change or return my item?
We hope you love your purchase, but if you need to make a change or return your item, we’ve got you covered! You can initiate a return or exchange within 30 days of receiving your order. Please ensure the product is in its original condition and packaging. For more information on our return policy, please visit our Returns & Exchanges page.
<div class="dynamic-checkout__content" id="dynamic-checkout-cart" data-shopify="dynamic-checkout-cart"> <shopify-accelerated-checkout-cart wallet-configs="[{"supports_subs":true,"supports_def_opts":false,"name":"shop_pay","wallet_params":{"shopId":69204410420,"merchantName":"Carkart","personalized":true}},{"supports_subs":false,"supports_def_opts":false,"name":"amazon_pay","wallet_params":{"checkoutLanguage":"en_US","ledgerCurrency":"USD","placement":"Cart","sandbox":false,"merchantId":"A1ONOTYM25CI4M","productType":"PayAndShip","design":"C0002"}},{"supports_subs":true,"supports_def_opts":false,"name":"paypal","wallet_params":{"shopId":69204410420,"countryCode":"US","merchantName":"Carkart","phoneRequired":true,"companyRequired":false,"shippingType":"shipping","shopifyPaymentsEnabled":true,"hasManagedSellingPlanState":false,"requiresBillingAgreement":false,"gatewayType":"MANAGED","merchantId":"PZG6E6657YATJ","sdkUrl":"https://www.paypal.com/sdk/js?components=buttons\u0026commit=false\u0026currency=USD\u0026locale=en_US\u0026client-id=AbasDhzlU0HbpiStJiN1KRJ_cNJJ7xYBip7JJoMO0GQpLi8ePNgdbLXkC7_KMeyTg8tnAKW4WKrh9qmf\u0026merchant-id=PZG6E6657YATJ\u0026intent=authorize","serviceableCountryCodes":["AC","AD","AE","AF","AG","AI","AL","AM","AO","AR","AT","AU","AW","AX","AZ","BA","BB","BD","BE","BF","BG","BH","BI","BJ","BL","BM","BN","BO","BQ","BR","BS","BT","BW","BY","BZ","CA","CC","CD","CF","CG","CH","CI","CK","CL","CM","CN","CO","CR","CV","CW","CX","CY","CZ","DE","DJ","DK","DM","DO","DZ","EC","EE","EG","EH","ER","ES","ET","FI","FJ","FK","FO","FR","GA","GB","GD","GE","GF","GG","GH","GI","GL","GM","GN","GP","GQ","GR","GS","GT","GW","GY","HK","HN","HR","HT","HU","ID","IE","IL","IM","IN","IO","IQ","IS","IT","JE","JM","JO","JP","KE","KG","KH","KI","KM","KN","KR","KW","KY","KZ","LA","LB","LC","LI","LK","LR","LS","LT","LU","LV","LY","MA","MC","MD","ME","MF","MG","MK","ML","MM","MN","MO","MQ","MR","MS","MT","MU","MV","MW","MX","MY","MZ","NA","NC","NE","NF","NG","NI","NL","NO","NP","NR","NU","NZ","OM","PA","PE","PF","PG","PH","PK","PL","PM","PN","PS","PT","PY","QA","RE","RO","RS","RU","RW","SA","SB","SC","SD","SE","SG","SH","SI","SJ","SK","SL","SM","SN","SO","SR","SS","ST","SV","SX","SZ","TA","TC","TD","TF","TG","TH","TJ","TK","TL","TM","TN","TO","TR","TT","TV","TW","TZ","UA","UG","UM","US","UY","UZ","VA","VC","VE","VG","VN","VU","WF","WS","XK","YE","YT","ZA","ZM","ZW"]}},{"supports_subs":true,"supports_def_opts":false,"name":"google_pay","wallet_params":{"sdkUrl":"https://pay.google.com/gp/p/js/pay.js","paymentData":{"apiVersion":2,"apiVersionMinor":0,"shippingAddressParameters":{"allowedCountryCodes":["AC","AD","AE","AF","AG","AI","AL","AM","AO","AR","AT","AU","AW","AX","AZ","BA","BB","BD","BE","BF","BG","BH","BI","BJ","BL","BM","BN","BO","BQ","BR","BS","BT","BW","BY","BZ","CA","CC","CD","CF","CG","CH","CI","CK","CL","CM","CN","CO","CR","CV","CW","CX","CY","CZ","DE","DJ","DK","DM","DO","DZ","EC","EE","EG","EH","ER","ES","ET","FI","FJ","FK","FO","FR","GA","GB","GD","GE","GF","GG","GH","GI","GL","GM","GN","GP","GQ","GR","GS","GT","GW","GY","HK","HN","HR","HT","HU","ID","IE","IL","IM","IN","IO","IQ","IS","IT","JE","JM","JO","JP","KE","KG","KH","KI","KM","KN","KR","KW","KY","KZ","LA","LB","LC","LI","LK","LR","LS","LT","LU","LV","LY","MA","MC","MD","ME","MF","MG","MK","ML","MM","MN","MO","MQ","MR","MS","MT","MU","MV","MW","MX","MY","MZ","NA","NC","NE","NF","NG","NI","NL","NO","NP","NR","NU","NZ","OM","PA","PE","PF","PG","PH","PK","PL","PM","PN","PS","PT","PY","QA","RE","RO","RS","RU","RW","SA","SB","SC","SD","SE","SG","SH","SI","SJ","SK","SL","SM","SN","SO","SR","SS","ST","SV","SX","SZ","TA","TC","TD","TF","TG","TH","TJ","TK","TL","TM","TN","TO","TR","TT","TV","TW","TZ","UA","UG","UM","US","UY","UZ","VA","VC","VE","VG","VN","VU","WF","WS","XK","YE","YT","ZA","ZM","ZW"],"phoneNumberRequired":true,"format":"FULL-ISO3166"},"merchantInfo":{"merchantName":"Carkart","merchantId":"16708973830884969730","merchantOrigin":"digipbestlanet.com"},"allowedPaymentMethods":[{"type":"CARD","parameters":{"allowedCardNetworks":["VISA","MASTERCARD","AMEX","DISCOVER","JCB"],"allowedAuthMethods":["PAN_ONLY","CRYPTOGRAM_3DS"],"billingAddressRequired":true,"billingAddressParameters":{"format":"FULL-ISO3166","phoneNumberRequired":true}},"tokenizationSpecification":{"type":"PAYMENT_GATEWAY","parameters":{"gateway":"shopify","gatewayMerchantId":"69204410420"}}}],"emailRequired":true},"customerAccountEmail":null,"environment":"PRODUCTION","availablePresentmentCurrencies":["USD"],"auth":[{"jwt":"eyJ0eXAiOiJKV1QiLCJhbGciOiJFUzI1NiJ9.eyJtZXJjaGFudElkIjoiMTY3MDg5NzM4MzA4ODQ5Njk3MzAiLCJtZXJjaGFudE9yaWdpbiI6ImNhcmthcnQuY29tIiwiaWF0IjoxNzk0MDQyMTUxfQ.nf10iLIkaPHFB0KjHnNcgtaj684x03Wl3fNm8-jUFDdHQktjRIbxEnEV487I_gWFfwjoxUaZmJc9FhrlmhNn9g","expiresAt":1794085351},{"jwt":"eyJ0eXAiOiJKV1QiLCJhbGciOiJFUzI1NiJ9.eyJtZXJjaGFudElkIjoiMTY3MDg5NzM4MzA4ODQ5Njk3MzAiLCJtZXJjaGFudE9yaWdpbiI6ImNhcmthcnQuY29tIiwiaWF0IjoxNzk0MDg1MzUxfQ.CtsnXge2333fHCbU-pqGcPSK3-bOwCkAEQ5V-Yn8-KuQQZwr2zB4khtmWDsIO8xZoXqsD1qbIogRe0Kzw-eNcw","expiresAt":1794128551}],"cardsinkUrl":"https://checkout.pci.shopifyinc.com/sessions","cardsinkCallerIdentificationJwt":"eyJraWQiOiJ2MSIsInR5cCI6IkpXVCIsImFsZyI6IkhTMjU2In0.eyJjbGllbnRfaWQiOiIxMSIsImNsaWVudF9hY2NvdW50X2lkIjoiNjkyMDQ0MTA0MjAiLCJ1bmlxdWVfaWQiOiIwMU02VEtYNFNGN0VCRzVQU0c0OThRODVHMCIsImlhdCI6MTc5NDA0MjE1MX0.TuUndwPi3CNks1m56p-FcWRPxCzSfDTM58zsrxz0U3Q"}}]" access-token="20810d98afa2dc52788bfff7f8a52a25" buyer-country="US" buyer-locale="en" buyer-currency="USD" shop-id="69204410420" cart-id="hWNIrlmV2I2IDMdoC85rl9RS" enabled-flags="["370070f3"]" requires-shipping > <div class="wallet-button-wrapper"> <ul class='wallet-cart-grid wallet-cart-grid--skeleton' role="list" data-shopify-buttoncontainer="true"> <li data-testid='grid-cell' class='wallet-cart-button-container'><div class='wallet-cart-button wallet-cart-button__skeleton' role='button' disabled aria-hidden='true'> </div></li><li data-testid='grid-cell' class='wallet-cart-button-container'><div class='wallet-cart-button wallet-cart-button__skeleton' role='button' disabled aria-hidden='true'> </div></li><li data-testid='grid-cell' class='wallet-cart-button-container'><div class='wallet-cart-button wallet-cart-button__skeleton' role='button' disabled aria-hidden='true'> </div></li><li data-testid='grid-cell' class='wallet-cart-button-container'><div class='wallet-cart-button wallet-cart-button__skeleton' role='button' disabled aria-hidden='true'> </div></li> </ul> </div> </shopify-accelerated-checkout-cart> </div>
