Sort by:
SAMexhaust VS COMMON MARKET PRODUCTS
304 Stainless Steel
Higher nickel content for durability
MATERIAL QUALITY
201 Stainless or Aluminum
Lower corrosion resistance
Flow-optimized geometry
Precision-engineered bends
ENGINEERED DESIGN
Basic tubular design
Restrictive flow paths
TIG welded construction
304 Stainless throughout
BUILD PROCESS
Robotic MIG assembly
Mixed material quality
MATERIAL ADVANTAGE
Premium 304 stainless steel construction outperforms standard alternatives:
- 2.5× corrosion resistance
- Superior high-temp integrity
- Proven extreme environment durability
PERFORMANCE ENGINEERED
CFD-optimized geometry delivers measurable improvements:
- 15-22% flow restriction reduction
- Optimal exhaust scavenging
- Consistent backpressure control
PRECISION CRAFTED
Meticulous attention to every component:
- Hand-TIG welded joints
- Mirror finish polishing
- 0.5mm tolerance standard
DOWNPIPE PRODUCTION v3.1
Downpipe Manufacturing Process
1
STEP 01
Material Selection
Aircraft-grade stainless steel
304/321 SS
Premium 304 or 321 stainless steel is selected for its exceptional heat resistance (up to 1500°F) and corrosion resistance. Material is sourced from certified US suppliers with full traceability.
2
STEP 02
Precision Cutting
Laser and plasma cutting
±0.005" tolerance
Tubing is precisely cut to length using CNC laser and plasma cutting systems. Flanges are laser-cut from 3/8" thick stainless plate for maximum durability.
3
STEP 03
Mandrel Bending
CNC-controlled bending
Smooth radius bends
All tubing is bent using mandrel bending equipment to maintain consistent inner diameter and smooth flow characteristics critical for turbo performance.
4
STEP 04
Flange Machining
CNC milling
OEM-spec flatness
All flanges are CNC machined to ensure perfect flatness and precise bolt patterns that match factory specifications for leak-free installation.
5
STEP 05
TIG Welding
Aerospace-grade welding
100% argon purge
Certified welders assemble components using TIG welding with 100% argon shielding gas. All welds are visually inspected and pressure tested.
6
STEP 06
High-Flow Cat Installation
EPA-compliant options
200-400 CPSI
For catted versions, we install premium 200-400 cell high-flow catalytic converters that meet EPA requirements while maximizing flow.
7
STEP 07
Final Finishing
Professional surface treatment
Mirror or ceramic
Each downpipe receives either a competition-grade mirror polish or optional thermal ceramic coating for heat management and corrosion protection.
8
STEP 08
Quality Assurance
Rigorous testing
100% inspected
Every downpipe undergoes dimensional inspection, pressure testing, and flow bench verification before being approved for shipment.
Special Deal!