ISR Performance Silicone Air Intake Tubes - Nissan 350Z HR 370z / Infiniti G37

The ISR Performance Silicone Air Intake Tubes are a direct replacement for the restrictive factory accordion-style intake tubes on the VQ35HR and VQ37VHR engine platforms. Made from high-grade heat-resistant silicone, they straighten the intake path between the MAF housings and the throttle bodies for better airflow and a cleaner look in the engine bay.

What It Does

The factory intake tubes on these engines use a corrugated, accordion-style rubber section between the MAF housings and the throttle bodies. That ribbed inside surface is a known restriction point and a common first upgrade for owners chasing better throttle response and modest top-end gains. The ISR silicone replacements have a smooth inside wall and a more direct path, eliminating the factory restriction while looking significantly better than the OEM tubes.

Fitment

• 2007-2008 Nissan 350Z with VQ35HR
• 2007-2008 Infiniti G35 with VQ35HR
• 2009-2020 Nissan 370Z (Z34) with VQ37VHR
• 2008-2013 Infiniti G37 with VQ37VHR

Not compatible with VQ35DE (2003-2006 350Z, 2003-2006 G35). The DE engine has different intake routing and uses a different replacement tube.

What's in the Box

• 2x Silicone intake tubes (one per cylinder bank)
• 4x T-bolt clamps

Product Details

Brand: ISR Performance

Part Number: IS-INT-ZHR

Type: Silicone Intake Tubes

Vehicle Fitment: 350Z HR, G35 HR, 370Z, G37 (VQ35HR and VQ37VHR engines)

Engine Compatibility: VQ35HR and VQ37VHR only (not VQ35DE)

Material: Heat-resistant silicone

Replaces: Factory accordion-style intake tubes

Clamps: 4x T-bolt clamps included

Sold: Pair (complete left and right bank set)

Legality: Off-road and competition use only