Intercooler pipes or downpipe? - Chevy and GMC Duramax Diesel Forum
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post #1 of 7 (permalink) Old 05-19-2013, 01:03 PM Thread Starter
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Intercooler pipes or downpipe?

Both mbrp intercooler pipes, or an mbrp downpipe for my lb7.

2007 lmm ccsb loaded to the max..
20x10 fuel throttles on 33/12.50 toyo Mt
5 inch straight pipe to 7" tip, SDP egr delete
Ppe fuel rail plug, S&B intake
Merchant automotive resonator delete & tie rod sleeves
Autometer phantom 2 boost, pyro, and fuel rail psi.
Efi live by Blake Crenshaw

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2003 lb7 ECSB nicely modded.. Sold
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post #2 of 7 (permalink) Old 05-19-2013, 01:08 PM
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Location: Fort Collins CO
Posts: 3,683

2011 Denali LML
Wehrli Emissions Compliant 475/stock kit, Wehrli Dual CP3 Kit, Merchant Auto Trans, Fass Pump
Tuned by Duramaxtuner

Sold 7/2015: Twinned 07 LBZ
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post #3 of 7 (permalink) Old 05-19-2013, 01:15 PM
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Location: Fortuna, CA
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2005 CCSB Silverado 2500 HD LLY
Performance: LBZ Mac performance intake, LBZ mouthpiece, MBRP duals, shim kit, ported fuel rail fittings, headstuds, FASS150, FASS fuel filter delete bowl, LBZ FPR, EFI live by Idaho Rob
Air Flow:finger vanes, ported turbine housing, BatMoWheel, losend unison ring, ported exhaust manifolds, gasket matched up-pipes
Exterior: Rear Reunel bumper, leveled tow mirrors, HIDs (all on mod), ADP tie-rod sleeves, green tinted headlamp housings
Interior: 2 12" memphis car audio subs, custom sealed box and 2000 watt memphis amp, LED interior, dash and door lights-green, cobalt autometer pyro and boost piller gauges
Best Time: 13.92 @ 95 mph 1.96 60 foot
Work In Progress: 1969 Chevy Nova, built turbo 350, 283ci small block est. 550hp with 7500 rpm redline, caltracs, 4.11 ford 9" rear end, dual 3"exhaust
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post #4 of 7 (permalink) Old 05-20-2013, 01:37 PM
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Location: Balgonie, Saskatchewan
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Both !!!!!

08 lmm/ efi live/ BMW/5in afe exhaust/mbrp downpipe/ afe intake/ afe turbo inlet/ pcv reroute/ rail plug/ sdp egr delete/ sdp y bridge/ ppe manifolds + uppipes/ fass 150/ beltech 3" shackles/isspro pyro boost and rail pres gauges/22 in XD Monsters wrapped with Nitto 420s
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post #5 of 7 (permalink) Old 05-20-2013, 01:47 PM
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LB7 inter-cooler are already pretty good size and flow good. the down-pipe is horrible on the lb7. its very restrictive and makes very noticeable difference when you out a aftermarket one on. idk if you have one but turbo horn helps too on lb7.

Big Thanks to Mark @ Danville Performance, Bill @ DR Tuning, Caleb @ blackout Performance, Tyler @ Titus Auto Performance

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post #6 of 7 (permalink) Old 05-22-2013, 11:34 PM
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Down pipe also helps there on sale.

Name to come
2013 GMC Denali HD 2500 ccsb,100%stock,spray liner,B&W,
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Devil Girl 2006 2500HD LBZ Ex-Cab 4x4
11.53 @ 116.92 1.66 60's

Custom ECM & TCM Tuning for 2001-2010 LB7/LLY/LBZ/LMM trucks
by Tony Martino at Ridge Runner Diesel available here-
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