Stainless Works · New
Stainless Power 2011-14 Mustang GT Headers 1-7/8in Primaries High-Flow Cats 3in X-Pipe
MPN SM12HCATX · Store SKU sswSM12HCATX
Supplier stock checked 11/7/2026, 6:00:02 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
2011-14 Mustang GT headers with 1-7/8" primary tubes, 3" X-Pipe, 3" dia lead pipes and high flow catalytic converters that mate to the Stainless Works exhaust. Tig welded 304 SS headers with 3/8" thick flanges and 3" dia slip fit collectors with merge spikes. This system connects to SW Performance Connect exhausts for a full 3" diameter superior performing lifetime guaranteed bolt-on system. 2011-14 Mustang GT headers with 1-7/8" primary tubes, 3" X-Pipe, catted lead pipes, Tig welded 304 SS headers with 3/8" thick flanges. This system connects to SW Performance Connect exhausts for a full 3" diameter system. Stainless Power Headers 1-7/8" With Catted Leads Performance Connect
Manufacturer fitment & guides
Check SM12HCATX against the manufacturer’s application information below.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- Emissions acknowledgement required before purchase.
- California Proposition 65: Y
