Overview

Speedtech Performance USA ExtReme Front Suspension Packages

Upgrade your front suspension with the Speedtech Performance USA ExtReme subframe featuring forged spindles. These packages are designed to handle all driving conditions with ease—ideal for daily driving, autocross, and track days. The box welded construction and tabbed through frame gusseting provide added torsional rigidity, while the fully adjustable wheel alignment and corrected Ackerman for better grip during cornering facilitate a customizable driving experience. The kit includes custom designed upper and lower control arms, a durable Sweet Mfg. dual power rack and pinion steering, QA1 custom valved single adjustable coilover shocks, and a splined front sway bar with spring rate options. The exclusive ExtReme forged spindles offer optimized geometry and improved KPI/SAI angles, providing increased tire grip and a more precise driving experience. Order the front suspension package recommended for your vehicle.

ExtReme Front Subframe Includes:

* Full ExtReme subframe
* Custom designed upper and lower control arms with high clearance to accommodate wide wheels
* Durable Sweet Mfg. dual power rack and pinion steering
* QA1 custom valved single adjustable coil over shocks, spring rates of your choice included
* Tuned, adjustable, splined front sway bar with spring rate options for street, pro-touring/auto cross and road course
* Exclusive ExtReme forged spindles with C7 hubs and maintenance free sealed bearing
* Fully adjustable transmission crossmember that will accommodate all engine and transmission combinations

ExtReme Front Subframe Features and Benefits:

* Boxed construction welded with tabbed through frame and crossmembers for added torsion rigidity
* Speedtech Performance chassis and subframes come exclusively with forged 7075 aluminum ExtReme spindles
* 78 percent motion ratio for faster shock response and more precise control
* Increased shock length providing more suspension travel
* Virtually zero bump steer, .005" over the full travel of the system
* 30 +/- 3 degree of steering angle
* Exclusive system provides optimum Ackerman for up to 20 percent more inside tire grip when cornering
* Industry exclusive optimized roll center for low, mid and high travel
* 3-piece chromoly tubular splined sway bar standard, optional spring rates
* Excellent system for street, autocross and track days
* Ride heights to meet your vision for styling the car exactly the way you want it
* Accommodates greater than 315/30/18 tire with full steering

ExtReme Forged Spindle Features:

* Forged from 7075 aircraft-grade aluminum
* Optimized geometry unmatched in any other Corvette style spindle
* Significantly improved KPI/SAI angle
* Requires less caster to achieve maximum tire contact patch
* Significantly reduced scrub radius
* Billet steering arm provides increased Ackerman angle
* Achieves optimum tire slip-angles, increasing front tire grip
* Maintains optimum tire grip with less backspaced wheels
* Brake caliper bolt pattern is direct carryover from Corvette C5 and C6, opening up many options
* Comes standard with a maintenance-free factory GM Corvette C7 hub and sealed bearing
* From parking lots to tracks, it simply drives and turns better

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