Home Aeroflow AF9590-3500 1x Exhaust Control Valve 3-1/2" 6-7 PSI

Aeroflow AF9590-3500 1x Exhaust Control Valve 3-1/2" 6-7 PSI

NOW $297.96
Or 4 interest-free payments of $74.49
In stock at 1 of our locations
🚛 Free NZ shipping
🔒 12 month warranty on all parts
NZ WOF compliant
🔧 Fitting available NZ wide

3-1/2" Exhaust Control Valve



Opens when boost reaches 6-7 psi

Do you want the benefit of having the full noise and power of AN open header at full throttle but also keeping it quiet for cruising the streets? Thanks to Aeroflow Performance the boost activated exhaust control valve (ECV) you cAN have the best of both worlds. No more wiring up expensive and unreliable electric exhaust cut-outs and no more climbing underneath the car to open the manual exhaust cut-outs. It's just a matter of hooking up the boost referenced vacuum line or a mac valve solenoid and you are ready to go. These ECV is for use with turbocharged vehicles and will open the exhaust valve when boost reaches roughly 6-7 psi. Allowing a quieter exhaust when driving around normally. The higher pressures cAN be obtained with either a installing a manual boost controller or a mac valve solenoid. The exhaust valve is normally closed for all applications. Installation requires fabrication work to weld into the current exhaust system with a T-piece or Y-piece (Sold Separately).

Shipping Information

Most orders land in 5–12 business days. We'll keep you updated at every step of the journey.


The Kren Bits journey:

  • Order received — Day 0
  • With fulfilment — Day 1–2
  • Heading to courier — Day 2–4
  • Shipped — Day 3–7
  • Almost there — Day 5–10
  • Delivered — Day 5–14

Where your part ships from:

Your order ships from the closest warehouse with available stock across our six-warehouse network — NZ, AU, TH, UK, US, and CN.


We email you at every real milestone — order received, with fulfilment, heading to courier, shipped, almost there, delivered. No chasing, no vague waits.


For more details, visit our Track Your Order page.

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