Doug’s is the pioneering force behind the popular TRI-Y design for cars and trucks. The unique, shortend, paired primary tubes increase mid-range torque without sacrificing top end power. TRI-Y’s are a great choice for daily drivers and heavy duty trucks looking to increase power from idle up to 4500 RPM while maintaining maximum fuel efficiency.

• 3/8” thick machined flanges to prevent warping
• CNC mandrel bent tubes for an accurate fit and improved flow
• Durable 16 gauge tubing
• 1 3/4" Primary Tubing Diameter
• 3" Collector Port Diameter
• Same as Port Port Shape
• Hi-Temp Black Coating

Built for durability without the added cost of specialty coatings, our high-temp black finish delivers clean looks and reliable protection where it counts. Designed to withstand the heat of everyday performance, this coating helps guard against rust and corrosion while maintaining a smooth, uniform appearance. The sleek black finish offers a subtle, aggressive style that holds up under real-world conditions—making it a practical, no-nonsense choice for drivers who want solid protection and a classic look without the need for thermal barrier coatings.

Our ignition and exhaust products ship from our warehouse in Lenexa, KS. Our normal shipping time is 2-3 business days for in-stock parts.

• At this time, PerTronix does not offer expedited shipping options from our website.
  
  
• All packages must be inspected upon receipt for any missing or damaged goods and claims for such must be made within 7 days of receipt.
  
  
• PerTronix does not currently ship our products internationally from our web store. For international orders call 909-599-5955 or connect with us here.
  
  
• Once an item has tracking info, it cannot be cancelled. If you decide you don’t want the items after shipment, please take receipt of the item and process it via our return policy. Thank you for understanding!

Returns at Pertronix are accepted within 90 days of purchase with prior authorization, ensuring items are in new, resalable condition. To initiate a return, call for an RGA and follow provided instructions. Customers are responsible for return shipping, using a trackable method.

Refunds exclude initial shipping and handling fees and may be subject to a restocking fee. For defective or damaged items, contact Pertronix directly. We are not responsible for user-initiated damage/loss of parts.

For complete details, visit our Returns page.

Warranty