Upright Modification Kit 6.4mm

This exclusive motorsport upgrade, developed by an IMSA/F1 specialist, precisely increases the mechanical trail by 6.4mm by machining the uprights (goosenecks). This modification results in a heavier, more measured, and communicative steering feel, enhancing driver confidence. The increased mechanical trail influences the torque around the steering axis when the wheel is turned, leading to greater self-centering forces and improved steering wheel torque build-up versus angle. This directly translates to a more connected steering experience when cornering. Key benefits include enhanced steering feedback, providing a natural, weighted connection to the road, and a measured response that smooths out the car's reaction to driver input for better turn-in control. Beyond steering dynamics, this modification also offers a wheelbase adjustment, decreasing it by 6.4mm. This can help reduce tire rubbing on the front fender liners when using aggressive square wheel setups. The machining is performed by an expert Indy/IMSA race machinist at Bobby Rahal's shop, underscoring the product's motorsport pedigree. Purchase options include a "Send-In Service" where you ship your existing uprights for modification (approx. 2-3 weeks turnaround) or a "Purchase & Exchange" program where you buy pre-modified uprights and return your OEM ones. The kit includes (2) modified left and right uprights, (8) SHCS M12 x 1.75 x 60 main bolts, and (4) caliper spacers (1" OD x 0.25" Long). Compatibility is for Alfa Romeo Giulia models (2.0L & 2.9L QV) from 2017-2024, with a selection needed for Steel vs. Carbon Ceramic brakes.