ETS Subaru MaxFlow V2 LW Headers - 2015-2021 Subaru STI
ETS Subaru MaxFlow V2 LW Headers - 2015-2021 Subaru STI
ETS
Couldn't load pickup availability
- ✔ Verified fitment & authentic brands
- ✔ Secure checkout via Shopify, Stripe, and PayPal
- ✔ Enthusiast-run support — not a marketplace
- ✔ Fair resolution on damaged or incorrect orders
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.
NO GUESSWORK,
JUST PARTS THAT WORK.
Let’s finish that car.
PRODUCT DETAILS ▾
ETS MaxFlow LW Header – Lightweight Design, Race-Ready Performance
If you’re chasing every tenth, the ETS MaxFlow LW Header delivers. This lightweight version of our proven MaxFlow design uses .083" wall USA-made tubing (vs. .120") to shed weight, increase internal diameter, and unlock even greater exhaust flow—all without sacrificing strength or reliability. It’s engineered for racers who demand maximum performance from their Subaru.
Features
- 1 7/8" primary runners with 2 1/2" secondaries for maximum exhaust flow
- CNC mandrel-bent runners for precise and consistent bends
- Custom .083" USA-made tubing for optimal weight savings
- Back-purged welds for superior durability and reliability
- Low-angle 4-1 merge collector for improved flow and exhaust scavenging
- Slip-fit connections for easy installation and removal
- Up-pipe flange options: 2-bolt, 3-bolt, or V-band
- Direct stock-replacement design
- Low-profile design for maximum chassis and component clearance
- Compatible with XL oil pans including IAG and Killer B
- Machined, surfaced flanges for a leak-free seal
- 304 stainless steel construction
- 100% built in-house and made in the USA
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.
ETS MaxFlow LW Header – Lightweight Design, Race-Ready Performance
If you’re chasing every tenth, the ETS MaxFlow LW Header delivers. This lightweight version of our proven MaxFlow design uses .083" wall USA-made tubing (vs. .120") to shed weight, increase internal diameter, and unlock even greater exhaust flow—all without sacrificing strength or reliability. It’s engineered for racers who demand maximum performance from their Subaru.
Features
- 1 7/8" primary runners with 2 1/2" secondaries for maximum exhaust flow
- CNC mandrel-bent runners for precise and consistent bends
- Custom .083" USA-made tubing for optimal weight savings
- Back-purged welds for superior durability and reliability
- Low-angle 4-1 merge collector for improved flow and exhaust scavenging
- Slip-fit connections for easy installation and removal
- Up-pipe flange options: 2-bolt, 3-bolt, or V-band
- Direct stock-replacement design
- Low-profile design for maximum chassis and component clearance
- Compatible with XL oil pans including IAG and Killer B
- Machined, surfaced flanges for a leak-free seal
- 304 stainless steel construction
- 100% built in-house and made in the USA
Share
