The factory computer takes the additional airflow when run without tuning, although we recommend having your car custom tuned at HHP to get the most gains out of this package.
Baseline Maximum Output: 365.37 rwhp / 366.17 rwt
Baseline Heat Soak Output: 349.35 rwhp / 359.36 rwt
Final Average Output: 410.70 rwhp / 410.46 rwt
Final Maximum HP Output: 413.99 rwhp / 401.33 rwtq
Final Heat Soak Output: 388.25 rwhp / 376.69 rwt
At full heat-soak (no fans and 15 minutes idling to reach 220+ degrees) we showed gains of 38 rear wheel horsepower and 24 rear wheel torque. Heat-soak numbers mean nothing since you will never run at these operating conditions but we use them to show what the absolute minimum gains are. That''s an awesome gain!
If you are interested, give us a call at 888-894-1115 and we can install your heads and intake for you at an awesome price. From the outside you can''t tell that any work has been done to your vehicle. Dealerships cannot tell unless they break into the engine. Our installation package uses Royal Purple Oil & K&N Performance Filter unless other is requested and all new gaskets and bolts (combined value of $160.00).
*Note1: If you''re interested in long tube headers, the installation time and cost goes way down if you have it done at the same time we do your heads since installation is much easier and quicker.
*Note2: If you are installing these heads with a high lift cam such as our Stage 2 Custom Cam, you will require additional upgrades to the heads. We use a specially designed and tested polished spring with Titanium retainers combination that outperforms the competitions valve springs. We''ve tested and broke several manufacturer''s valve springs and since this is the weakest part of the engine, we''ve developed a special combination that performs flawless and is extremely safe. Just select the Stage Options below to add the spring combination for use with the high lift cams.
If you are interested in having anything else done at the same time, just let us know. Our tech''s are awesome and trained on these vehicles which is why most manufacturer''s recommend us as the leading East Coast installer for the SRT-8''s. The shops that are good enough to work on these vehicles know enough about them to not want to work on them while the shops that don''t know these vehicles well enough say they can and screw things up majorly. We''ve fixed plenty of other shops screwups. Don''t trust just anyone to work on your baby.