Torque Solution Cylinder 4 Coolant Mod - 2002-2014 Subaru WRX / 2004-2021 STI / 2003-2006 Baja / 1998-2010 Forester / 1993-2014 Impreza / 1990-2009 Legacy / 2000-2009 Outback
Torque Solution Cylinder 4 Coolant Mod - 2002-2014 Subaru WRX / 2004-2021 STI / 2003-2006 Baja / 1998-2010 Forester / 1993-2014 Impreza / 1990-2009 Legacy / 2000-2009 Outback
Torque Solution
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Every product is sourced from authorized manufacturers or distributors. If something isn’t right with fitment or condition, we’ll work with you to resolve it fairly.
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PRODUCT DETAILS
RallySport Direct proudly carries a massive selection of high-performance engine, suspension, and drivetrain upgrades to reinforce your race car, rally car, or overlander brought to you by Torque Solution.
Here, you are looking at the Torque Solution Cylinder 4 Coolant Mod. This modification has been designed to increase the coolant flow to the cylinder number 4 head area. This will help reduce the cylinder number 4 coolant temperatures to keep them more uniform with the rest of the cylinders to reduce knock and detonation. This will also help reduce the chances of the common cylinder number 4 ring land failure.
DETAILS:
- CNC machined 6061 billet aluminum fittings
- Black anodized finish
- Multi-layer silicone hose
- Stainless steel clamps
- Designed to reduce the coolant temperatures in cylinder number 4
- Helps reduce the chances of knock and detonation in cylinder number 4
- Helps reduce the chances of ring land failure on cylinder number 4
WHY WE CARRY THIS
We only list parts we’d run ourselves or recommend to a friend building a real car. If it feels vague, unverified, or inconsistent, it doesn’t make the cut.
- Fitment-first mindset — no “universal” roulette
- Brand reputation matters — we favor proven manufacturing
- Support that actually responds with real answers
WHAT TO EXPECT
This is the clean path: correct fitment, clean install, and results that match the intent.
- Install-ready experience with correct mounting where provided
- Finish that holds up to real driving, not just photos
- Selections on this page drive the exact fitment shipped
TRUST, BUILT INTO THE PROCESS.
Anyone can list parts. We curate what belongs on a serious build. Our goal is simple: fewer surprises, cleaner installs, and confidence when you hit “Buy.”
Fitment checked
We prioritize vehicle-specific listings and clear selection logic so you’re not gambling on compatibility.
Brand discipline
Proven manufacturing and consistent quality matter more than hype. We bias toward what actually holds up.
Real support
If you have a question, you’ll get a human answer that helps you finish the build — not a copy-paste shrug.
RallySport Direct proudly carries a massive selection of high-performance engine, suspension, and drivetrain upgrades to reinforce your race car, rally car, or overlander brought to you by Torque Solution.
Here, you are looking at the Torque Solution Cylinder 4 Coolant Mod. This modification has been designed to increase the coolant flow to the cylinder number 4 head area. This will help reduce the cylinder number 4 coolant temperatures to keep them more uniform with the rest of the cylinders to reduce knock and detonation. This will also help reduce the chances of the common cylinder number 4 ring land failure.
DETAILS:
- CNC machined 6061 billet aluminum fittings
- Black anodized finish
- Multi-layer silicone hose
- Stainless steel clamps
- Designed to reduce the coolant temperatures in cylinder number 4
- Helps reduce the chances of knock and detonation in cylinder number 4
- Helps reduce the chances of ring land failure on cylinder number 4
