Gruppe-S V2 Manifold - 02+ WRX / 04+ STI $399 shipped !
The Gruppe-S manifold is a 4 to 1 manifold designed to provide extensive midrange and top-end power gains. Our manifold features T304 Stainless Steel piping, mandrel bends, and CNC precision cut flanges. The 4-1 collector is cast to ensure the smoothest possible low rates. Strong gains in both HP and torque can be expected with the addition of the manifold, especially with high horsepower applications. Includes all necessary gaskets.
Helix Flex Uppipe - 02+ WRX $199 shipped !
-High quality double layered flex section - Reduces torsional vibration on vital exhaust components and turbo, also ensures perfect seal (even with aftermarket headers, downpipes, etc.)
-Thick 1/2" 304 Stainless Steel Flanges - to prevent warping and reduce heat expansion
-304 Stainless Steel Mandrel Bent Piping - Ensures proper flow and durability
-CNC Machined EGT bung - seats EGT properly unlike competitors which will eventually leak. (The EGT is there for a reason!!)
-2.25" piping diameter - optimal for upgraded turbos
-includes OE style gaskets (from same factory as OEM gaskets)
Helix Oil Catch Can - Universal $75 shipped !
The Helix Catch Can is designed to trap oil moisture and blow-by caused by normal engine operation, especially in turbo charged vehicles. On your factory vehicle, because of emissions regulations, the waste oil and sludge is generally re-routed back into the intake stream. This debris will tend to accumulate inside the intake tract, intercooler, turbocharger, as well as be ingested into the engine during normal combusion process. Needless to say, this sludge and blow-by will hurt the performance of your vehicle. The Helix Catch Can eliminates this problem by trapping such debris and insuring optimal horsepower and longevity of you vehicle.
Features: Machined and polished aluminum tank, Clear braided hoses with hose clamps and adapter, visual debris level indicator, mounts vertically or horizontally.
Helix Catback - 02+ WRX $499 shipped !
Type: Cat-back (USDM)
Piping Style: AVG 80mm Stainless Mandrel Bent, Polished
Tip Type: 120mm Straight Cut
Silencer: Yes (included)
Helix (Stainless) - US Spec - 02+ WRX/STI + Free CEL fix $285 shipped !
The Helix Downpipe is the optimal downpipe for the performance minded Suby owner. This downpipe features a cast bellmouth which provides the absolute maximum exhaust flow and minimum back pressure by allowing the wastegate gases to exit without disrupting normal exhaust flow. The piping is full 3" Stainless Steel (304) polished, and the package includes gaskets & bolts. This downpipe replaces both cats and is designed for USDM fitment only. The combination of the Helix uppipe, downpipe, and exhaust system will yield 30+whp!
Helix High-Flow Catted Downpipe (200 cell) 02+ WRX / STI + Free CEL Fix
$SOLD OUT !
The Helix Catted Downpipe incorporates Helix Power’s first-rate bell-mouth downpipe, with the addition of a 200 cell Metal-Substrate high-flow catalytic converter and thermal barrier heat-shield. The 200 cell Metal-Substrate downpipe has been tested by us to yield 7-10whp over the factory twin cats, while able to pass stringent California smog standards on the WRX / STI. The thermal barrier heat-shield assists in rapid warm-up of the cat for maximum efficiency and helping to reduce engine bay temperatures.
Order online or over the phone.
Phone: (510) 783-5300