G35/G37 Short Tube Headers - Stainless Steel | Fits 2003-2013 Infiniti G35/G37/Q60 & 2003-2008 350Z | VQ35DE, VQ35HR, VQ37VHR | Boost Power & Sound | Direct Bolt-On
Boost power and sound on your 2003-2013 Infiniti G35/G37/Q60 and 2003-2008 Nissan 350Z with these Stainless Steel Short Tube Headers that replace the restrictive cast-iron OEM manifolds with free-flowing mandrel-bent primaries, because stock VQ manifolds choke exhaust velocity and kill throttle response while these are engineered to improve scavenging and unlock real +10-18 WHP and +8-15 WTQ gains depending on your DE, HR, or VHR engine and supporting mods, and they’re a direct bolt-on for all 2003-2006 G35 Coupe/Sedan VQ35DE Non-RevUp, 2005-2007 G35 RevUp, 2008-2013 G37/Q60 Coupe/Sedan/Convertible VQ37VHR, plus 2003-2006 350Z DE and 2007-2008 350Z HR, including manual, automatic, and AWD models, and the design clears factory motor mounts, steering shaft, AC lines, and heat shields with no cutting, denting, or relocating needed, and they use 304 stainless steel construction with TIG-welded, back-purged seams and thick 3/8in CNC-machined flanges that resist warping and leaks while retaining your OEM O2 sensor locations and downstream cats or test pipes so you stay street-legal and inspection-friendly with no CEL on a stock ECU, though a tune maximizes gains, and the 1.5in to 1.625in primaries merge into 2.25in collectors tuned for midrange torque and top-end pull without sacrificing ground clearance, and the sound gets noticeably deeper and more aggressive with faster revs and a clean, rasp-free VQ tone when paired with stock or aftermarket exhausts, and every set comes with high-temp multi-layer steel gaskets and hardware, and is pressure-tested and checked for flange flatness so you get perfect bolt-on fitment right out of the box, and the polished stainless resists corrosion and heat discoloration for years of daily driving or track use, making these the easiest way to boost power and sound on your G35, G37, Q60, or 350Z without the fitment nightmares and reliability issues of cheap long tubes.
Key Features:
- Fits 2003-2013 G35/G37/Q60 & 2003-2008 350Z: Direct bolt-on for VQ35DE Non-RevUp, RevUp, VQ35HR, and VQ37VHR. Coupe, Sedan, Convertible, AWD supported.
- Dyno-Proven +10-18 WHP Gains: Mandrel-bent primaries improve exhaust velocity. Adds +8-15 WTQ with better midrange and top-end pull.
- Full 304 Stainless Steel Build: TIG-welded and back-purged for strength. Resists corrosion, cracking, and heat discoloration vs mild steel.
- Thick 3/8in CNC Flanges: Precision-machined flanges stay flat under heat. Stops warping and exhaust leaks common on thin headers.
- Retains Stock Cats or Test Pipes: Bolts to OEM cats, high-flow cats, or test pipes. Keep it emissions-friendly or go full race setup.
- No CEL & No Tune Required: Keeps factory O2 sensor locations. No check engine light on stock ECU, but tune unlocks max gains.
- Clears Motor Mounts & AC Lines: Engineered around VQ bay for true bolt-on fit. No denting, cutting, or heat shield removal needed.
- Maintains Factory Ground Clearance: Tucked shorty design with no low-hanging pipes. Safe for lowered cars and daily driving.
- Deeper, Aggressive VQ Sound: Adds volume and tone without rasp or drone. Faster revs and clean exhaust note with any catback.
- MLS Gaskets & Hardware Included: Comes with multi-layer steel gaskets, nuts, and bolts. Pressure-tested for leaks and flange flatness.