I have a bone stock 03 hemi truck and I need help I want to modify my truck performance wise.Im already getting some exhaust work done,I would like to know what else I can do so she can put down at least 500 hp .Thanks for any suggestions.

 

GSM Supercharger, 150hp wet nitrous kit or STS turbo. No bolt-ons will get you anywhere close. Good luck and happy modding!

 

It'll take the GSM kit and then some....

 

Trade it in for a used SRT-10,that'll get you your 500

 

i had a 04 hemi with a gsm kit making 509 rwhp traded it in on a 05 srt-10. the hemi had way more *****.but you have a 03 you can get a programer but no chip that year was f%#&ed up for the hemi might wana look into it.they dont recomend to much for the 03's

 

I hadn't seen a GSM kit making that much power yet, and I talked to Scott last week, he hadn't mentioned one getting that high to me, funny...........but 387 is the highest I have seen on a dyno so far, it might be a few more out there making just a wee bit more, you must have had that double SRT killer pkg. running about 40 LBS of boost with about 8 extra injectors in the trippple intercooler piping and that walboro 700 LPH fuel pump.

 

MrHemi finally got his 8lb high boost GSM kit running well. Once he switched over to the 04+ fuel pump and regulator everything fell into place. I believe he hit 410 - 410 wheel hp-tq with no limp modes or stalling.
AvsFan put MAJOR dollars into his STS turbo and got huge HP - TQ numbers ( 475, 574 ), but again MAJOR coin came with it.