| CONCLUSION | HP Level | HP+ | TQ Level | TQ+ |
| Baseline | 248.0 | | 274.7 |
| 1 AEM EMS | 257.0 | 9.0 | 290.7 | 16.0 |
| 2 GReddy Exhaust | 264.4 | 7.4 | 296.1 | 5.4 |
| 3 AEM Cold-Air Intake | 269.5 | 5.1 | 301.1 | 5.0 |
| Final | 269.5 | 21.5 | 301.1 | 26.4 |
| BANKROLL |
| AEM EMS | $ 3097.87 |
| GReddy Racing Titanium Exhaust | $ 1169.00 |
| AEM Cold-Air Intake | $ 319.91 |
| MSRP Total | $ 4586.78 |
ProsIncreasing airflow to the turbocharger is as important as expediting exhaust flow. Allowing the turbocharger to breathe more freely will also increase turbo response, which in turn results in more power. The 5-inch conical filter keeps the debris out of the compressor housing while giving the turbocharger ample surface area to ingest charge air from.
ConsThe AEM cold-air intake will only work on the factory turbocharger, so if you upgrade to a different turbo, the intake must go bye-bye.
Parts5-inch cone filter, adapter, brackets, aluminum intake tube, hoses and instructions.
Installation Time10 minutes
ConclusionAlthough the Evo is generating an additional 21.5 peak hp more than stock from three bolt-on upgrades, it is more impressive that the 4G63 engine is making over 35 more horsepower at the mid range over stock. Boost response is quicker and overall performance is substantially better. Now the Evo can easily take care of any would-be contenders in the ring without breaking a sweat. Be sure to check out next month as we go for more power in Part II.
Dyno 1
Baseline
248 HP 274.7 TQ
Owner: Import Tuner
Dynamometer Model: XS Engineering
4WD DTS dyno
Dyno 2
AEM EMS stand-alone
257 HP 290.7 TQ
| 2000 to 3500 HP average -3-1 | 2000 to 3500 TQ average -3-1 |
| 3500 to 5500 HP average 2-22 | 3500 to 5500 TQ average 1-25 |
| 5500 to redline HP average 3-22 | 5500 to redline TQ average 3-25 |
| Peak Horsepower 257.0 | Peak Torque 290.7 |
Dyno 3
GReddy Racing Ti Exhaust System
264.4 HP 296.1 TQ
| 2000 to 3500 HP average 0-3 | 2000 to 3500 TQ average 0-3 |
| 3500 to 5500 HP average 2-8 | 3500 to 5500 TQ average 3-5 |
| 5500 to redline HP average 2-7 | 5500 to redline TQ average 2-5 |
| Peak Horsepower 264.4 | Peak Torque 296.1 |
Dyno 4
AEM Cold-air Intake
269.5 HP 301.1 TQ
| 2000 to 3500 HP average 1-2 | 2000 to 3500 TQ average 1-2 |
| 3500 to 5500 HP average 1-3 | 3500 to 5500 TQ average 1-3 |
| 5500 to redline HP average 2-5 | 5500 to redline TQ average 2-5 |
| Peak Horsepower 269.5 | Peak Torque 301.1 |
AEM/DC Sports
(310) 484-2322
Greddy
(949) 588-8300
XS Engineering (4WD DTS Dyno Facility)
(714) 698-8300
Tune
Power Is Everything