Not trying to be confrontational, but a 3"/4" Diamond Eye system is 300 bucks and turbo to tailpipe......probably one of the best dollar per dollar improvements for a 6.5 turbo.
DIY Turbomaster. Google it.
Bit more $$ - Heath Diesel Turbo master - $110
Used K47 (RPO - GM option code) air box - $50-$150
That's pretty much it for "cheap". You're into around $500 a pop for performance enhancing stuff after the above.
IE: reflashed PCM, WMI Injection, S&B intake, turbos, etc.
Keep in mind; performance and 6.5 means around 200 hp at the crank for a "bolt on strong" 6.5 TD. These are just not "powerhouse" engines and never will be, 250 hp is very expensive to attain and not very easy at all...
And because this will come up eventually;
1. Anything you read on SSDiesel's web store take with a very large grain of salt.
2. Do not even look at anything for sale by "A1Customs". Complete and utter whack job there....
One last thing:
Stay away from marine injectors. One of the biggest scams going.....
Last edited by great white; 04-19-2012 at 08:51 PM.