DDI's will give you better performance than the 275's. Alot of people who don't want to get carried away but want more performance than the 275's will go for the DDI's or DDII's. If it were me I would by-pass the 275's and go for the DDI's or II's.
Bully Dog has come out with a extruded honed injectors (step I, II, III, IV) that are suppose to be comparable to the DD's but are cheaper. I chose the Bully Dog step III's.
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<font color=blue>"WHITE OBSESSION" 99 Quad Cab, White, SLT, 4x4, 5-sp, 3:54's, Raven cap (cab high), Rhino liner, Stainless Nerf Bars, Stainless Rocker Panels, Tow package, Pro-flap mud flaps with Stainless Cummins "C" add to rear flaps, Valentine One, Uniden PC78LTW CB, Hadley Bully Air Horns, HOT Power Edge, Psychotty Air Induction, Braided SS Fuel Lines, 4" Jardine Exhaust (Love the deep throaty sound), 285/75R16 Cooper A/T's, Navigator 55w backup lights. </font>
<A HREF="http://albums.photopoint.com/j/AlbumIndex?u=1086000&a=9265455" TARGET=_blank><font color=red>My 99 Dodge Cummins</A></font>
<A HREF="http://albums.photopoint.com/j/AlbumIndex?u=1086000&a=9815423" TARGET=_blank><font color=green>BD Dyno Days 10/28/00</A></font>
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Things to come; The clutch has let me know it is going to need attention very soon!
Pyro, 50# Boost and Fuel Pressure gauges (have Ultra lites will install shortly), PE EZ timing module and injectors (have Bully Dog step III injectors just need to install them), have 2 KC Daylighters (Stainless with 385,000 candlepower each), have 2 KC Fog lamps(Stainless 100w each) and waiting for Bar II Stainless Brush Guard to arrive, then will mount guard and lights.
NRA Life Member! (Need to protect our rights and FREEDOM!!)<font size=-2>
[This message has been edited by BIG BOB (edited 12-30-2000). ]