Stainless Steel Exhaust System Kit For 2003-2006 Nissan 350Z Z33 Infiniti G35 FX35 3.5L V6 VQ35DE Catback & Shorty Header & Y-Pipe & Test Pipe
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This performance exhaust bundle combines a header, test pipe, Y-pipe, and catback system, designed to unlock the full potential of your 2003-2006 Nissan 350Z or Infiniti G35. The headers and Y-pipe downpipe seamlessly replace restrictive stock components, significantly improving exhaust flow to increase horsepower and torque, reduce turbo lag, and enhance engine efficiency. Crafted from high-quality T-304 stainless steel with precision welding and mandrel bending, the system ensures optimal airflow and reduced back pressure. Completing the setup, the catback exhaust features 3-inch piping and a 4.5-inch flat tip, adding an aggressive exhaust note and an extra 10-15 horsepower for a powerful, responsive drive.
Y-Pipe:
Features
- Inlet Side: 2.5"
- Outlet Side: 3.0"
- Made of high quality T-304 stainless steel with computerized mandrel-bends for strength and durability
- Dyno proven increases low end torque and horsepower
- Double welded flex pipe insertion
- Increase high flow air, instantly gain 10 to 20 horsepower
- Aggressive deep sound while ensures smooth exhaust gas flow
- Professional Installation is Highly Recommended
- No Instruction Included
Fitment:
- 2003-2009 Nissan 350Z 3.5L
- 2005, 2007 Infiniti G35
Downpipe Exhaust/Test Pipes:
Features
- Application: Exhaust Downpipes/Test Pipes
- Material: Stainless Steel
- Material: Stainless Steel
- Surface: Mirror Polish
- Placement on Vehicle: Front, Rear
- Inlet Diameter: 2.50"
- Outlet Diameter: 2.50"
- Mounting Style: 2 Bolt / 3 Bolt
Fitment:
- For Infiniti FX35 2003-2008 3.5L 3498CC V6 GAS DOHC Naturally Aspirated
- For Infiniti G35 2003-2008 3.5L (NOT for Infiniti G35 2003 Base Coupe 2-Door 3.5L)
- For Infiniti M35 2006-2008 3.5L
- For Nissan 350Z 2003-2009 3.5L (NOT for Nissan 350Z 2005 35th Anniversary Edition)
Catback Exhaust:
Features
- Application: Catback Exhaust
- Material: Stainless Steel
- Surface: Mirror Polish
- Stainless Steel Construction
- 4.5" flat tip, with detachable double-layer silencer, 3-inch pipeDirect bolt-on, no modification needed.
- Gain more horsepower, faster response, averaging 10-15 extra hp
- Engineered To Be Direct Bolt-On Replacement To Increased Exhaust
- Producing strong, deep, and noticeable sound
Fitment
- 2003-2008 Nissan 350Z (Coupe/Convertible Models)
- 2003-2008 Infiniti G35 (Coupe Models ONLY)
- Needs extra extension for Sedan
Header:
Features
- Header Type: Shorty Tube
- Primary Diameter: 1-5/8 in. (42mm)
- Collector Diameter: 2-1/2 in. (64mm)
- Head Flange Thickness：3/8 in. (9.5mm)
- Pipe Thickness: 16 gauge (1.5mm)
- Made of high quality T-304 stainless steel
- Shorty design for power gain from idle to mid-range RPM
- 2 x 3-1 Direct bolt-on design
Fitment:
- 2003-2006 Nissan 350Z Z33 3.5L VQ35DE Engine ONLY
- 2003-2006 INFINITI G35 3.5L VQ35DE Engine ONLY
- 2003-2006 INFINITI FX35 3.5L with VQ35DE Engine ONLY
SHIPPING & DELIVERY
Fast Processing & Reliable Transit
- Processing: Orders are processed and shipped from the nearest available warehouse within 1 business day after payment.
- Delivery: Estimated delivery time is approximately 3–4 business days after shipment.
- Shipping - Free shipping on all orders within the contiguous 48 U.S. states.
RETURNS & EXCHANGES
30-Day Hassle-Free Policy
- Return Window: We offer a 30-day return policy from the date of delivery.
- Item Condition: Returned items should be unused, uninstalled, and in their original packaging when possible.
- Return Process: To initiate a return or exchange, please contact our customer service team first to receive authorization and instructions.
WARRANTY
2-Year Limited Replacement Warranty
- Duration: All products are backed by a 2-year limited warranty.
- Coverage: This warranty covers manufacturing defects and product failures under normal use, and provides a replacement for qualified cases (repairs are not performed).
CUSTOMER SUPPORT
We’re Here to Help – Contact Us First
- Priority Contact: For any order-related issues—including returns, warranty claims, or general inquiries—please contact us first before taking further action. We are committed to resolving your concern promptly.
- Feedback Notice: If you are unsatisfied, we kindly ask that you allow us an opportunity to address the issue before leaving neutral or negative feedback.
- Email Support: You can reach us at support@XKVracing.com.
Important Notice
Products on this site are intended for off-road, racing, or closed-course use where emissions laws apply. They are not represented as street legal, emissions-compliant, or legal for use on public roads unless explicitly stated.
Some products may remove, replace, relocate, disable, or alter emissions-related components, including but not limited to catalytic converters, EGR, DPF, SCR, DOC, O2 sensors, or related factory systems. Compatible tuning, calibration, or supporting modifications may be required to avoid engine codes or drivability issues.
Professional installation is recommended. Buyers are responsible for verifying product compatibility, local regulations, emissions requirements, and any required tuning or supporting modifications before purchase and installation.
Performance gains, sound changes, airflow improvements, temperature changes, fuel economy changes, fitment, and drivability results may vary. No specific performance gains are guaranteed.