Subaru WRX Upgrades and Tuning

If you thought replacing the wheels of a Subaru WRX STi with a Mattracks rubber track system was impressive, take a look at the strap-on tank that turns your old rust-bucket into a half tank, half car, true all-terrain vehicle.

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Braille Auto Development has released the Oxygen Racing Seat for the Subaru WRX STI. The new seats were developed in collaboration with doctors and physical therapists to make the seat more comfortable and put less stress on the human body during long drives and race driving.

The new Braille Oxygen Racing Seats for the Subaru WRX STI offers many advantages over the stock seats, notably:

• Better spine support
• More comfort
• Increased hip and leg room
• Thicker padding
• Ergonomic memory foam
• Lighter seats (you save 35 pounds over the stock seats). Nothing a good diet can’t do!

The seats are made of a fiberglass reinforced plastic shell, which makes them the lightest full-sized racing seats in the world without sacrificing safety. One seat weights a mere 16 pounds and you can buy one for $899 from Braille’s web site.

While these new racing seats won’t gain you any HPs on your Subaru WRX, they sure look comfy!

Via: HSPN

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The SPT Performance Exhaust replaces the stock intermediate pipe and muffler with a larger, 3-inch stainless-steel system for better sound and performance. The SPT High Flow Air Intakes are made of cast aluminum and come with an anti-vibration mounting system. The SPT Heat Shield cools intake air to reduce power loss.

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Subaru has launched three new Prodrive Performance Packs for selected 2006 model-year Impreza and Forester models. The kits are available from Subaru dealers for 1700 including VAT and fitting, and do not affect the cars’ standard warranty arrangements. They also pass full UK Type Approval regulations for noise and emissions.

Each kit consists of a reprogrammed ECU and a new exhaust system which replaces the standard rear catalyst with a high-flow version and adds a sports silencer. In the case of the Impreza WRX STi, a new high-flow fuel pump is also added.

The results are dramatic. An Impreza WRX STi fitted with the Pack gets a power boost to 316bhp, while maximum torque improves from 289lb/ft to 332lb/ft. The power peak occurs 400rpm higher up the rev range at 6000rpm, but it’s the other way round with torque – down 300rpm to 3700rpm.

In terms of standing-start acceleration, nothing much changes. The STi’s 0-60mph time drops from 5.0 to 4.8 seconds, and there’s a 0.3s improvement in the 0-100mph time to 12.2 seconds. But mid-range acceleration is more important in the real world, and this is where the Prodrive Packs truly score. The run from 30-50mph in fourth gear comes down from 4.8 to 4.3 seconds, while the 50-70mph time in fifth also improves to 4.3 seconds from the standard 5.1.

The Impreza WRX gains similar benefits from its Pack. Maximum power goes up to 266bhp, while torque rockets up by 74lb/ft to 310lb/ft. The other car to get its own Pack is the Forester 2.5 XT manual, which gets a power boost to 256bhp. Interestingly, Subaru quotes 0-60mph in 5.3 seconds and 0-100mph in 13.9 seconds for both cars, though the mid-range figures for the Impreza are slightly better than they are for the Forester.

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