isr long tube headers g37
Boost Your G37’s Performance with ISR Long Tube Headers
Looking to unlock more power and sound from your Infiniti G37? One of the best bang-for-buck upgrades you can make is installing a set of ISR Performance Long Tube Headers. Whether you’re chasing dyno numbers or just want that deeper, throatier exhaust tone, ISR headers are a favorite in the G37 modding community—and we’ve got them available at our shop.
Why Long Tube Headers?
The factory exhaust manifolds on the G37 are restrictive, built more for emissions and cost savings than performance. Long tube headers, on the other hand, increase the length of the exhaust runners and improve scavenging. This results in:
Increased horsepower and torque (up to 15–20 HP gains when tuned)
Better throttle response
Deeper, more aggressive exhaust tone
Higher RPM efficiency
Why Choose ISR?
ISR Performance has earned a strong reputation for delivering affordable, reliable performance parts. Their Long Tube Headers for the G37 are made from 304 stainless steel, TIG welded, and designed with precision to fit both G37 coupes and sedans (RWD only).
Key features:
Direct bolt-on for VQ37VHR engines
Mandrel-bent runners for smooth flow
Includes gaskets and hardware
Pairs well with ISR Y-pipe and test pipes
We recommend pairing these headers with an ECU tune for maximum gains and to correct the air/fuel ratios after install.
Available Now – Shop With Us
We currently stock ISR Long Tube Headers for G37 and can help with installation support, tuning recommendations, and pairing with other performance upgrades like exhaust systems, intakes, and coilovers.
📞 Call or visit us today to grab your set before they’re gone—ISR headers sell out fast!