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Six-Gun® Diesel Tuner & Banks iQ® 2.0

Calibrated for racing and sport, Six-Gun delivers pavement-shredding best gains of +155 hp and +385 lb-ft at the rear wheels; has 6 change-on-the-fly power levels; is Stacked for Power® to timing and fuel pressure; and has exclusive AutoRate® and ActiveSafety® engine and transmission safeguards.

Banks iQ is over 5 inches of awesome! Use it for total control of your Six-Gun Tuner. Achieve best gains with a touch of your finger. Set and monitor EGT, coolant temps and a vast array of other engine parameters. Time performance runs. Scan/define/clear vehicle diagnostic codes. Open and read your Microsoft® Office documents. Work with the on-screen keyboard and calculator, watch videos, view pictures, listen to your favorite music, and much more. Banks iQ is so useful, you'll want to take it everywhere. With its rechargeable battery and out-of-vehicle portability, you can!

Read more about the remarkable Banks iQ »

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System Includes:


Banks iQ® 2.0

  • Controls Banks diesel tuner and/or SpeedBrake™
  • Big 5" full-color touch-screen display
  • Interchangeable gauge display – change screens/colors
  • Read & Clear Codes
  • 1⁄4, 1⁄8 mile & 0-60 performance testing
  • Multi-media playback (music, video games, pictures)
  • View your Microsoft® Office documents on the go...and much more!


ApplicationYear RangePart #
Banks iQ
Chevy 6.6L, LB7
Six-Gun Diesel Tuner, w/Banks iQ: Emissions compliant: CARB E.O. D-161-93 (PN 62816)
2001-04 63729

Owners Manual(s)

Tuner- Six-Gun Diesel Tuner with optional Speed-Loader Module (LB7) '01-04
For use with Six-Gun Switch
Tech_icon Download

LB7 Six-Gun: Smoke ‘em Out, Daddy!


Ted of Williamsville, New York, installed a Six-Gun Diesel Tuner on an ’01-04 Duramax LB7 4X4 crewcab with a 6.6L turbo-diesel

Wow—awesome power!! I love this system--and so do my 2 young boys (ages 5 and 8)--"Give it some boost, daddy!"; "Smoke 'em out, daddy!" This system is making other vehicles on the road look like four cylinders!! I took it to my local racetrack (unfortunately, only 1/8th mile), but seemed to embarrass a Mustang GT that I was up against. Turned a 9.7 flat on the track--darn good for a 6,000 lb diesel pickup 4x4 crewcab with stock tires!! No laughing after I did my race! Thanks for making a killer product!!

LB7 tuner & exhaust: Way More Fun Than Any Muscle Car I’ve Owned...


I pull a 12,000 pound construction trailer with my GMC 6.6 D/A 2500HD. I have installed the Six-Gun, Speed-Loader, and [Monster] Exhaust. WOW!! I recently towed 2,200 miles from Florida to Indiana and back. Mileage is way up. Exhaust temp is way down and the torque is Unbelievable. Without the trailer and just with a little spool up on the brakes at a red light, this thing will smoke just about any production street car. This is way more fun that any muscle car I have ever owned over the last 35 years. Thanks for your great products.

Sarasota, FL

LB7 tuner & exhaust: Even the Other “Chipped” Diesels Could Not Keep Up!


I bought my new K2500 Crew Cab because I had just out-grown my old 1/2 ton. My business had expanded so much that my old truck was getting tired. I have always been a GM man and was getting so tired of the "Power choke" and "Wait, I'm Cummins" boys bash the DuraMax. I started to look at diesel "hop-up" products. I went with Banks because you are known for your milestone diesel enhancements with over all concern for safety and dependability. After the install I was shocked with the results that were achieved. I went out to show off my new toys, and found that even the other "chipped" diesels could not keep up! I wear my Banks stickers with pride because all the other guys are spending more money on other companies’ products trying to catch me (us). I wish they would only listen and call BANKS!

West Columbia, TX

LB7: Monster Exhaust, Ram-Air, Six-Gun Tuner, Big Head


Frank, I just wanted you to know that once again, I received my order in great time and packaged very well! Your S&R Dept do very good work and I commend them for this.

I know you must speak to a lot of people every work day and you may not remember but, I told you in the past that I wasn't very mechanically inclined but I do like to change my own oil and easy tasks like that.

Well, the instructions that came with all my parts were so well detailed that after reading over all of this, I thought to myself: I think I can do this!
I gathered all my tools and began. I'm so excited I can't hardly believe it! I've got it all hooked up! YES!!!!
I received it all on a Friday ( Good shipping to S. Louisiana in 5 days! Pretty cool.
Saturday morning I began. Now you've got to realize, I'm kinda slow, not too sure of myself, had to go back over papers and read carefully,
trying to prevent any mistakes. You know the drill, pulled right front wheel, drilled & tapped exhaust manifold for EGT probe.
Went to work on Big-Head Actuator. Wrapped that up and tackled Six Gun Tuner. Feeling pretty good, Frank!
Once I got the IQ mounted and wired, I thought, well, I'm going to re-attach battery cables, say a prayer & awaken the beast!

I might be sleeping in the shed but, I'm a happy camper!

Thank you!

A satisfied customer and your pal

Best Regards:

Doug P.
Broussard, LA

Six-Gun commercial

This commercial for the Banks Six-Gun Diesel Tuner (with the Banks iQ interface) shows how Banks' racing victories translate to added performance gains for folks looking to get more out their own truck.

Need pricing? Call now 800-601-8072 Monday through Friday 7am to 5pm Pacific Time

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Need pricing? Call now 800-601-8072 Monday through Friday 7am to 5pm Pacific Time

Free Test Report


With Banks Big Hoss Bundles available for Chevy, Dodge, and Ford turbodiesels, towing your race car will feel like you’re pulling your kid’s little red wagon.

Speedway Illustrated