50 State Legal Up-Pipe Kit

Features:

• 50 State Legal with CARB EO# D-721-9
• Fits 2003-2004 6.0L Powerstroke engines
• Free-flowing stainless steel bellows
• 11-gauge stainless steel pipe construction
• .120-inch thick pipe wall for durability
• Internally sleeved bellows for strength
• Improves exhaust flow and performance
• Helps prevent exhaust leaks over stock
• Ideal upgrade for high performance builds
• Backed by a 2-year manufacturer warranty

Stronger, Smarter Exhaust Flow for Your 6.0L Powerstroke

If you’re starting to build a more reliable exhaust system on your 2003–2004 Ford 6.0L Powerstroke, replacing the stock up-pipes is one of the smartest first steps you can take. The Sinister Diesel 50 State Legal Up-Pipe Kit not only solves common durability issues with factory components but also gives your truck improved exhaust flow for better performance. These pipes are built from heavy-duty 11-gauge stainless steel with thick .120-inch walls, making them far stronger than stock. The bellows are internally sleeved to hold up under higher heat and pressure, helping prevent the cracking and leaking that can rob your truck of power over time. Plus, with CARB EO# D-721-9, this kit is 50-state legal, so you don’t have to worry about emissions compliance whether you’re in California or anywhere else.

Performance You Can Count On

What makes this kit even better is that it’s designed to fit perfectly on your 6.0L without unnecessary modification or guesswork. The free-flowing bellows and smooth pipe design help reduce restrictions, which can translate into quicker turbo spool-up and more consistent boost pressure. Whether you’re towing heavy loads, building for performance, or just trying to replace worn factory parts with something built to last, this kit delivers on all fronts. Sinister backs it with a 2-year warranty for added peace of mind. It’s the kind of upgrade that not only makes sense now but pays off down the road with better reliability and long-term durability.

Fits: 2003, 2004 Ford F250/F350 6.0L Powerstroke