Smarty tuner 4 inch exhaust - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 6 (permalink) Old 03-08-2012, 03:57 PM Thread Starter
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Smarty tuner 4 inch exhaust

Did a 4 inch turbo back straight pipe with a smart jr tuner runs great sounds great ! Only question is i seem to have lost some of my exhaust brake power. Any ideas? Could it be from the lack of back pressure.

2010 6.7 cummins 4x4 crew cab short bed 6 speed auto 4:10 gears stock for now. Draw tite brake controller
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post #2 of 6 (permalink) Old 03-08-2012, 05:45 PM
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Put it in tow haul and see if its all still there..

"Only accurate rifles are interesting" -Townsend Whelen

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post #3 of 6 (permalink) Old 03-08-2012, 08:14 PM Thread Starter
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Quote:
Originally Posted by neeltburn View Post
Put it in tow haul and see if its all still there..
Tried that the brake is working just not as strong as before. Hills that i could come down before and hold 40 mph in 5 th gear without touching the service brakes now i'm hitting 50 - 55 in 5 th gear. tow haul shifts me down quicker but not stopping any better.

2010 6.7 cummins 4x4 crew cab short bed 6 speed auto 4:10 gears stock for now. Draw tite brake controller
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post #4 of 6 (permalink) Old 03-09-2012, 06:46 PM
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Mine holds/stops me with 5in tbe w/ muffler. Maybe try a muffler to add some back pressure.


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"Only accurate rifles are interesting" -Townsend Whelen

2012 Ram 2500 Crew Cab Big Horn
6.7L 68RFE 4wd
Yeah its stock.
Edge Insight CTS / Line-X / Access Bed Cover
B&W Turnover Ball / Companion Hitch
Pac Brake Air Bags
On Board Air
Optima Redtop 34Rs


2010 John Deere 2305
2010 Jeep Wrangler JK Unlimited Rubicon/ Tuned with some toys.
2016 Keystone Impact 311 Toyhauler






9-11-2001 NEVER FORGET
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post #5 of 6 (permalink) Old 03-11-2012, 03:29 AM
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Another thing, Im Still running old 23ME software so I don't have the revo for Turbo/Boost, what software are you running?

"Only accurate rifles are interesting" -Townsend Whelen

2012 Ram 2500 Crew Cab Big Horn
6.7L 68RFE 4wd
Yeah its stock.
Edge Insight CTS / Line-X / Access Bed Cover
B&W Turnover Ball / Companion Hitch
Pac Brake Air Bags
On Board Air
Optima Redtop 34Rs


2010 John Deere 2305
2010 Jeep Wrangler JK Unlimited Rubicon/ Tuned with some toys.
2016 Keystone Impact 311 Toyhauler






9-11-2001 NEVER FORGET
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post #6 of 6 (permalink) Old 07-14-2012, 05:30 PM Thread Starter
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Unpluged the E.G.R and it works just like it use to !!!! Kinda thought the tuner would have took care of that !!

2010 6.7 cummins 4x4 crew cab short bed 6 speed auto 4:10 gears stock for now. Draw tite brake controller
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