Delicious Tuning

The best Delicious Tuning parts depend on your Subaru build: a flex fuel Bluetooth kit is the core upgrade for running ethanol blends on a WRX, WRX STI, BRZ, or Forester XT, while MAP sensors, 3-port boost solenoids, and OEM+ coil packs support the tune. Coverage runs from the 2002-2014 WRX and 2004-and-up WRX STI to the 2015-and-up WRX, the 2013-2021 BRZ, FRS, and 86, and the 2022 BRZ and GR86, so check your year and model first.

Flex fuel hardware lets the engine use gasoline and ethanol blends interchangeably: the kit reports ethanol content so a compatible tune can adjust fueling and boost to suit, and the Bluetooth kits add wireless viewing of that data. Supporting parts matter too, because a MAP sensor that cannot read your boost level limits the tune. These parts sit inside the wider Fuel Systems range, and every setup needs a flex-fuel-capable tune.

Delicious Tuning is the only brand here, a Subaru-focused tuning parts maker whose range is built almost entirely around ethanol. Its flex fuel line spans generations: a CAN Enabled Bluetooth Kit V3, a CAN-enabled kit for the 2022 BRZ and GR86, Bluetooth kits for the 2008-2014 WRX and 2014-and-up Forester XT, a kit for the 2015-and-up WRX, and WRX STI kits including a 2015-2021 FutureFlex kit listed as Green Speed compatible. An MK1 to MK2 upgrade keeps older installs current.

Around those kits, Delicious Tuning covers sensors and control parts. MAP sensors include a 45 PSI / 4 BAR version and an 11 PSI / 1.7 BAR version for the 2013-2021 BRZ, FRS, and 86, while 3-port boost solenoids are listed for the 2008-2021 WRX STI and the 2013-2021 BRZ, FRS, and 86. OEM+ coil packs come in sets of four for the 2002-2014 WRX, 2004-and-up WRX STI, and BRZ applications, alongside an air/oil separator for the 2013-2020 BRZ, FRS, and 86 and fuel pressure sensor kits. Good starting points are the CAN Enabled Flex Fuel Bluetooth Kit V3, the flex fuel Bluetooth kit for the 2008-2014 WRX, and the FutureFlex kit for the 2015-2021 WRX STI.

Most flex fuel builds are tuned through a platform such as COBB Tuning, known for the Accessport and deep WRX and WRX STI support, so confirm your tuner supports the kit first. Fuel Injector Clinic is the cross-shop when a build outgrows its injectors, and GrimmSpeed is the natural comparison for 3-port solenoids. Our article on e-tuning for your Subaru WRX STI covers the tuning side.

Do I need a tune to run a flex fuel kit?

Yes. The kit supplies ethanol-content data, but a flex-fuel-capable tune has to use it. Talk to your tuner about support for your kit and model before ordering.

Which kit fits my car?

Kits are application-specific, with separate versions for each WRX, WRX STI, BRZ, FRS, 86, and Forester XT generation above. Check your year and model against the kit title.

When do I need an upgraded MAP sensor or 3-port EBCS?

When boost rises beyond what the stock MAP sensor can read, or when your tuner wants the more precise control a 3-port solenoid gives.

Can I replace just the flex fuel sensor?

Yes. A standalone replacement sensor is listed here, plus an MK1 to MK2 upgrade for older installs.