The piping is all hand polished featuring robotic TIG welding. The midpipe includes a resonator to assist in keeping that traditional boxer engine sound with an exotic race tone that does not drone in the cabin. The catback exhaust uses a high flow Y-Pipe to efficiently direct exhaust to the dual exhaust canisters. The Y-pipe features a merged collector and 2. The straight through mufflers are designed to optimize horsepower with very little restriction.
The mufflers do feature removable exhaust silencers for those wanting the ability to keep the system very quiet during daily use. The catback exhaust features dual 4 inch single straight exit Titanium Tips with the Agency Power logo. Not only is air flow important, but how that air gets into your cars motor is an essential factor.
With vehicle computers becoming more and more advanced, precision engineered products are necessary to optimize performance. This intake kit is sold as a short ram. The kit features a CNC aluminum MAF sensor mount on our intake tube with built in mesh screen to keep air flow laminar. The intake kit includes a 5ply AP silicone coupler with clamps for easy install. To keep the cool air separated from the engine heat, Agency Power has developed this heat shield which mounts to factory chassis locations from the front crash beam to the fender.
The heat shields are powder coated in a textured black finish and the intake tubes are done in wrinkle red to match the STI intake manifolds. For a stock turbo, the 1. Our 2" Up-pipe is a perfect choice for those looking for a larger Up-Pipe for higher HP applications. Check out the details at: Big Tube Up-Pipe. Send or Cancel. View larger. Quantity: This product is not sold individually. This bolt-on kit includes all hardware and ancillary components necessary to facilitate a complete installation.
From the factory, the exhaust manifold features a cast iron, unequal-length, multi-piece design that adds weight and complexity to the plumbing that feeds the turbocharger.
While the unequal-length manifold design helps with turbo response, it hampers peak power production. This manifold features slip fit connections and TIG welded joints, complete with a lustrous mirror polished finish.
You may need to modify a wrench to reach all of the bolts on the bellmouth of the downpipe at the turbocharger, as Subaru uses a stud with nuts on both sides to secure the downpipe. We took a box end wrench and ground it down until it was thin enough to fit around the nut on the turbo flange. The larger diameter tubing and straight through cat-less design of the TOMEI Powered downpipe provides a more free flowing exhaust path leading from the turbocharger to the cat-back system.
In conjunction with the downpipe install, we downloaded from the Cobb Tuning website a flash tune optimized for a bolt-on downpipe. On the dyno, the downpipe made measurable gains, increasing peak output by While peak torque only increased by just shy of one lb-ft , noteworthy gains of up to 19 lb- were realized from 4, RPM through redline. On July 30,
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