Fits 1967 to 1970 Ford Fairlane, Mustang, Ranchero and 1 more model, and 1 more make. See every vehicle
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.
| Year | Make | Model | Engine |
|---|---|---|---|
| 1969 | Ford | Fairlane | 5.8L 351 V8 |
| 1967 | Ford | Mustang | 4.7L 289 V8, 6.4L 390 V8, 7.0L 428 V8 |
| 1968 | Ford | Mustang | 4.7L 289 V8, 5.0L 302 V8, 6.4L 390 V8, 7.0L 427 V8, 7.0L 428 V8 |
| 1969 | Ford | Mustang | 5.0L 302 V8, 5.8L 351 V8, 6.4L 390 V8, 7.0L 428 V8, 7.0L 429 V8 |
| 1970 | Ford | Mustang | 5.0L 302 V8, 5.8L 351 V8, 7.0L 428 V8, 7.0L 429 V8 |
| 1969 - 1970 | Ford | Ranchero | 5.8L 351 V8 |
| 1969 - 1970 | Ford | Torino | 5.8L 351 V8 |
| 1969 | Mercury | Comet | 5.8L 351 V8 |
| 1969 - 1970 | Mercury | Cougar | 5.8L 351 V8 |