Dyno 3
Racing Beat Street
Exhaust System
187.2 HP 131.2 TQ
| 2000 to 3500 HP average 0-1 | 2000 to 3500 TQ average 0-1 |
| 3500 to 5500 HP average 0-1 | 3500 to 5500 TQ average 0-1 |
| 5500 to redline HP average 1-3 | 5500 to redline TQ average 0-2 |
| Peak Horsepower 187.2 | Peak Torque 131.2 |
Dyno 4
Racing Beat Race
Exhaust Muffler
188.4 HP 132.9 TQ
| 2000 to 3500 HP average 0-2 | 2000 to 3500 TQ average 0-1 |
| 3500 to 5500 HP average 0-1 | 3500 to 5500 TQ average 0-1 |
| 5500 to redline HP average 1-2 | 5500 to redline TQ average 1-2 |
| Peak Horsepower 188.4 | Peak Torque 132.9 |
Notes
Since the race exhaust uses the same connecting-pipe as the street system, we were able to swap out the exhaust in no time. But same with removing the stock exhaust, be careful or else there will be a BBQ in your honor.
Temperature
68 degrees Fahrenheit
Temperatures difference from previous run: +1 degrees Fahrenheit
| CONCLUSION |
| | HP Level | HP+ | TQ Level | TQ+ |
| Baseline | 181.0 | 128.6 |
| Racing Beat Rev I Intake | 185.2 | 4.2 | 132.2 | 3.6 |
| Racing Beat Street Exhaust | 187.2 | 2.0 | 131.2 | -1.0 |
| Racing Beat Race Exhaust | 188.4 | 1.2 | 132.9 | 1.7 |
| Final | 188.4 | 7.4 | 132.9 | 4.3 |
| BANKROLL |
| Racing Beat REVi | $335.00 |
| Racing Beat Street Exhaust | $635.00 |
| Racing Beat Race Exhaust | $525.00 |
| MSRP Total | $860.00-970.00 |
Installation time
0.5 hour
Tools
14mm socket and ratchet.
Parts
Racing Beat race muffler
Pros
Although dubbed the race exhaust, the Racing Beat system still meets the 92dB sound limit. The main advantage of the race system is the weight. Weighing in at 25.5 lbs., the race system is 13.5 lbs. lighter than the factory exhaust. The system was originally designed for autocross racers that wanted a lightweight exhaust that produced more power than factory but that is still able to pass the 92 dB sound limit at the track. If you are a car show buff, the system is a love it or leave it proposition. We think the system looks cool and gives the RX-8 the racing appeal. Although we only registered an additional 1.2 peak horsepower, the increase was over the street system. If you compare it to the factory exhaust the race system generated an additional 3.2 peak horsepower overall.
Cons
No polished tip(s) for car show fanatics
Conclusion
The RX-8 has gotten a bad rap due to the underpowered powerplant. But take a drive in the Mazda, the dyno numbers do not do it justice. The car is a blast to drive and feels much quicker than the 180-plus horsepower dyno figures. Take the RX-8 on a long winding canyon road and all your problems seems to melt away. The Racing Beat components have added a little zip to the Mazda and given the RX-8 the rumble it was missing.