View Single Post
Old 02-24-2010, 01:52 AM
metalguysteveo's Avatar
metalguysteveo metalguysteveo is offline
Dodge Ram Forum Member
Join Date: Aug 2009
Age: 29
Posts: 60
Gender: Male
Vehicle: 2004 HEMI QUAD CAB
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 0
metalguysteveo is on a distinguished road
Default Great performance upgrades!

Well i have officially made my list of current and future performance mods and if anyone else is interested in beefing up their hemi but dont know where to start heres where i did.Truck not dyno'd but heres the claimed hp of each item and my opinion.

1.Volant CAI-claimed 22hp,deffinately noticable hp gain,throttle responce is much better and truck idles better.($249)
2.3" straight exhaust w.turndown from the y-pipe to just past the doors.Compliments the intake nicely.Sounds awesome and more air coming in means more going out.Hemi's love to breathe freely so if you like it loud this is the way to go.($40)
3.Throttle body spacer will be here tomorrow.Claims 8hp and 14lb ft of torque.we will see.($50)

Soon to come

4.Superchips Cortex programmer,claims massive hp and torque gains and obviousely the more performance mods you have the better gain you will receive.
5.E3 Diamond Fire spark plugs.Claims to increase hp up to 12%.Thats about the best bang for your buck imo seeing how they are only $5.99 each.I already have performance wires but i will be upgrading again with these new plugs.
6.Underdrive pulleys.Claim to increase up to 24% hp.I havent yet found a company that sells more than just the harmonic balancer underdrive pulley but this one alone claims up to 9hp increase.
7.Longtube headers claim to add upwards of 24hp
8.intake manifold,many many different options but usually running under $400 you can look foward to a 15-25hp gain.
9.Synthetic fluids,not only help protect your motor which is now producing more power but also add a slight increase itself.

**Please note,my list above and the hp increases listed with each item is only the "claimed" increases.I have not had these items on my car and dyno'd and im not saying these parts will or wont add the claimed amount of hp but i think its safe to say its close,but i would usually guess it would add under what the manufacturers numbers claim.That way you wont be let down if its not as signifigant as they say but then again if it is come dyno time it will be a pleasant
Reply With Quote
Sponsored links