There’s more to consider when upgrading a factory forced induction setup than merely slapping on a bigger turbo or new supercharger pulley. The setup must work as a whole, and this theory applies equally (if not more so) to boosting a NA powerplant as well. Before you spend your life savings on eBay, take a look at some of the best FI parts available on the market today and choose wisely.
AMR
Bolt-on Subaru turbo upgrades
The AMR CXR750 is designed for enthusiasts wanting the power of a rotated turbo setup but in a stock orientation. Easy installation and direct bolt-on assembly make this a great upgrade, flowing at 80 lbs/min and featuring fully ported exhaust and compressor housings along with a 3-inch compressor inlet. These turbos come pre-assembled, including all necessary gaskets, bolts, clamps and lines.
automasteramr.com
AMR
Cast turbo inlet
AMR has designed a one-piece cast turbo inlet for those upgrading the stock location (non-rotated) turbochargers on their Subaru. The AMR cast inlet can be run on factory or any aftermarket stock location turbocharger.
automasteramr.com
AMS
R35 GT-R billet turbo upgrade
The AMS Nissan R35 GT-R billet turbo upgrade provides stock spool-up and neck-snapping torque and horsepower that will transform the mighty GT-R into a true supercar. Designed as a direct bolt-on for your existing factory turbochargers, you can expect gains starting at 225 hp and 175 ft-lbs of torque with the proper supporting mods and tuning. At full boost with race gas, these turbos are capable of over 900 hp.
amsperformance.com
AMS
EVO X billet V-band turbo kit
AMS offers a full product line for the EVO X enthusiast, including its new billet V-band turbo kit. This is the most advanced and reliable kit on the market this race-proven package not only produces unmatched power and spool but is also designed to withstand the abuse of professional motorsports.
amsperformance.com
AMS
Rotated mount STI V-band turbo kit
The AMS ’08 Subaru rotated mount V-band turbo kit is the new benchmark in Subaru performance. Designed to meet the demanding needs of road race, drag race and street cars alike, AMS has successfully achieved unparalleled driveability, response and horsepower. AMS’ unique design has been tested and refined for over a year to provide reliability, OEM-like fitment and options never available in a Subaru turbo kit before.
amsperformance.com
BorgWarner
EFR Series turbochargers
BorgWarner, a worldwide leader in turbo technology, has gone back to the drawing board and come up with a revolutionary new turbo technology: EFR. Pulling from BorgWarner’s extensive OEM knowledge, all EFR compressor covers have integrated CRV (compressor recirculation valve) ports and mounting. EFR turbos also include forged aluminum compressor wheels and all-new titanium-aluminide (Gamma-Ti) turbine wheels, which are roughly half the weight of the typical Inconel wheel. This reduction of weight results in improved response, higher boost levels at lower rpm and higher wheel speeds.
borgwarner.com
COBB Tuning
Mazdaspeed3 front-mount intercooler
Looking for an effective solution that will eliminate inconsistent power delivery from your MAZDASPEED3? Look no further than the new COBB Tuning front-mount intercooler. The factory top-mounted intercooler can easily be overworked and overheated due to its smaller size; in return, the intake air temperatures rise, causing a loss in power. Replacing the factory intercooler with the COBB Tuning front-mount intercooler will ensure that your engine is receiving the coolest possible air, allowing you to enjoy more power that’s also much more consistent.
cobbtuning.com
Full-Race
Honda & Acura turbo kits
Full-Race’s celebrated Honda turbo kits have been recently redesigned for compatibility with the EFR turbochargers (not pictured). Using innovative engineering, the best materials and impeccable fabrication techniques, Full-Race’s turbo kits are second to none.Included in the kit is the Full-Race turbo manifold; a low backpressure 3-inch V-band downpipe; a high-efficiency, hand-fabricated intercooler core;wastegate; BOV; and turbocharger.Charge pipes are fabricated from mandrel-bent 2.5-inch 6061-T6 aluminum and are designed for a perfect fit and optimum performance.
full-race.com
Full-Race
Subaru Turbo Kit
Full-Race’s textbook twin-scroll turbo manifold for the Subaru WRX/STI has been track-proven with stellar performance results.Utilizing ideal cylinder pairing, low-entry angle merge collectors and the proper implementation of twin-scroll technology, significant power and torque increases across the entire powerband can be realized while minimizing lag and improving throttle response.Full-Race manifolds are hand-fabricated in the USA from forged eight-gauge stainless steel, robotically TIG-welded and include a lifetime warranty.Available for EFR, stock turbo, twin-scroll T3 and twin-scroll T4 turbocharger configurations, these kits set the bar high.
full-race.com
Greddy
370Z Turbo Kit
It’s possible to add an extra 175 hp to your 370Z with the GReddy intercooled-twin-turbo TD06SH-20G tuner turbo kit. Kits come standard with twin TD06SH-20G turbochargers, heavy-duty cast turbo manifolds, Type T external wastegates, an Airinx intake system, a X-large Type-29 R-Spec intercooler, smooth-flowing aluminum piping, and a large capacity cast-aluminum oil pan.
greddy.com