Customer Reviews

Ordered with the cold air intake. Took 2 weeks total (backorder), but the intake whoosh pairs perfectly with the 5 exhaust."

Shipping took 7 days (backorder). EGTs dropped 250�F post-delete. Mini Maxx's touchscreen is finicky in cold weather.

Install took 8 hours solo. 150HP tune is perfect for towing. T409 shows slight surface rust after winter - wish it was T304.

4-inch delete pipe fits tight near DEF tank. 100HP SOTF is my sweet spot. Unlock Tool saved me days of ECM swap hassle.

Took 8 hours to install solo. SOTF switch feels cheap, but Level 4's power is addictive. No more regens at 120k miles!

Noticeable power increase across entire RPM range. EGTs dropped significantly when towing. Tuner mount could be more sturdy.

Noticeable power increase across all RPMs. EGTs dropped significantly when towing. Instructions could be more detailed.

ECM service took 5 days total. EGTs dropped 300�F post-EGR delete. AutoCal software has a steep learning curve but powerful features.

Race pipe needed minor adjustment at downpipe. AutoAgent 3 app is intuitive. Switching between tow/economy/performance tunes takes seconds.

Perfect fit for my F450. Shipping was fast (3 days). Level 5 launches like a rocket blew my buddy's Duramax away.

3-hour install with a lift. Street Tune screams! ECM service was faster than expected (4 days total).

EGR block-off plates included high-quality gaskets. Level 5 launches like a drag truck! Mini Maxx's gauges are crystal clear.