Downpipe install

**Recker** · 11-12-2012, 06:06 PM

Thinking about getting this downpipe

2001 2004 GM Cheverolet Duramax Diesel Turbo Direct Downpipe Stainless LB7 | eBay

I believe its made by pypes pn#DTD0104. Wondering if anyone's used this?

Also should i get a new flange gasket for the turbo or does everyone reuse the one on it?

Any other tips are also greatly appreciated!!!

Mr. Neptune · 11-13-2012, 06:40 AM

If you are doing it youirself you may want to read some of the other posts on the subject first. I have a aftermarket downpipe on my truck and the only real difference I seen with it was the exhaust tone. But if you have plenty of time to get it done and up for the challange, go for it.

**Recker** · 11-13-2012, 04:10 PM

Did you reuse the gasket? I cant find an install post that says anything about it.

Thebiggids · 11-13-2012, 04:23 PM

Magna flow makes one cheaper than that and its wrapped.

My mbrp came with a gasket, id expect most kits too. But if the gasket looks ok im sure you can re use it.

Hope youre ready for a PITA job if the bolts dont break loose easily

bigjohn · 11-13-2012, 04:29 PM

Magnaflow just came out with that right.

biketopia · 11-13-2012, 04:44 PM

I reused the gasket on mine. Just soak the bolts with a good penatrent, PB blaster, Aerokroil, for a couple of days before hand and take your time, pull the front pipe out of the exhaust and I also removed the bolts for the trans mount and jacked up the trans and engine to get the old one out. Took a little persuading to get the new one in. I noticed lower EGT's, deeper tone, and quicker cool down.

Thebiggids · 11-13-2012, 04:51 PM

Quote:

Originally Posted by bigjohn

Magnaflow just came out with that right.

I knnow alligator advertised them. 130-135 IIRC. Dirt cheap...I paid 270 for mine. And magnaflow makes quality stuff so id trust it way more than an ebay one...plus supporting a site vender

**Recker** · 11-13-2012, 06:26 PM

Quote:

Originally Posted by Thebiggids

Magna flow makes one cheaper than that and its wrapped.

My mbrp came with a gasket, id expect most kits too. But if the gasket looks ok im sure you can re use it.

Hope youre ready for a PITA job if the bolts dont break loose easily

magnaflow makes one for less than $150?

**Brennan** · 11-13-2012, 06:28 PM

Quote:

Originally Posted by Recker

magnaflow makes one for less than $150?

Pro fab do

Sent from my iPhone using AutoGuide.com App

**Recker** · 11-13-2012, 06:32 PM

Quote:

Originally Posted by Brennan

Pro fab do

Sent from my iPhone using AutoGuide.com App

do you like yours?

11-12-2012, 06:06 PM	eBay Motors #1 (permalink)
Recker Duramax Forum Supporter Join Date: Nov 2011 Location: Shepherd, MI Posts: 93	Downpipe install Thinking about getting this downpipe 2001 2004 GM Cheverolet Duramax Diesel Turbo Direct Downpipe Stainless LB7 \| eBay I believe its made by pypes pn#DTD0104. Wondering if anyone's used this? Also should i get a new flange gasket for the turbo or does everyone reuse the one on it? Any other tips are also greatly appreciated!!! __________________ 2003 Medium Green Metallic CC/SB LB7 Duramax EFI Live With DSP5 \| Autometer EGT, Fuel, Boost \| MBRP 4" Straight Pipe Exhaust PPE Boost Valve \| Fass 150 Titanium \| Bills Custom AEM Intake \| ProEFX Cowl Hood Debadged \| Zone Keys & Blocks \| High Idle Mod \| High's/Low's/Fog's All On Mod \| DDM 5000k HID's Tinted Lights And Windows \| Black And Machined 17" Eagle 197's On 285/70/17 AT3s Rough Country Sleeves \| DHD Steering Brace \| LML Exhaust Manifold \| Diamond Eye Downpipe Wishing For A Built Trans! It's Safe To Say I'm A Little Addicted...

11-13-2012, 06:40 AM	eBay Motors #2 (permalink)
Mr. Neptune Senior Member Join Date: Sep 2011 Location: Parker, CO Posts: 332	If you are doing it youirself you may want to read some of the other posts on the subject first. I have a aftermarket downpipe on my truck and the only real difference I seen with it was the exhaust tone. But if you have plenty of time to get it done and up for the challange, go for it. __________________ 2004 LB7 CCSB Arrival Blue 6" lift, 35's FASS Titanium 150 MBRP 4" stright exhaust + downpipe Bill's Custom 4" Horn and Intake Edge CTS used for gages Nictane Adaptor Stage V Transmission EFI Tunes by Wade

11-13-2012, 04:10 PM	eBay Motors #3 (permalink)
Recker Duramax Forum Supporter Join Date: Nov 2011 Location: Shepherd, MI Posts: 93	Did you reuse the gasket? I cant find an install post that says anything about it. __________________ 2003 Medium Green Metallic CC/SB LB7 Duramax EFI Live With DSP5 \| Autometer EGT, Fuel, Boost \| MBRP 4" Straight Pipe Exhaust PPE Boost Valve \| Fass 150 Titanium \| Bills Custom AEM Intake \| ProEFX Cowl Hood Debadged \| Zone Keys & Blocks \| High Idle Mod \| High's/Low's/Fog's All On Mod \| DDM 5000k HID's Tinted Lights And Windows \| Black And Machined 17" Eagle 197's On 285/70/17 AT3s Rough Country Sleeves \| DHD Steering Brace \| LML Exhaust Manifold \| Diamond Eye Downpipe Wishing For A Built Trans! It's Safe To Say I'm A Little Addicted...

11-13-2012, 04:23 PM	eBay Motors #4 (permalink)
Thebiggids DuramaxForum Enthusiast Join Date: Jun 2011 Location: Bellingham, Wa Posts: 2,757	Magna flow makes one cheaper than that and its wrapped. My mbrp came with a gasket, id expect most kits too. But if the gasket looks ok im sure you can re use it. Hope youre ready for a PITA job if the bolts dont break loose easily __________________ Gideon 01 LB7 EC/SB Ally 4x4 shop ornament DD: 1990 4runner completely stock 4x4 3.slow Big Thanks To Adrenaline Truck Performance, Alligator Diesel Performance, and Socal Diesel

11-13-2012, 04:29 PM	eBay Motors #5 (permalink)
bigjohn DuramaxForum Enthusiast Join Date: Apr 2012 Location: Pittsburgh Pa Posts: 2,118	Magnaflow just came out with that right. __________________ 2006 2500 HD SLT ECLB, LBZ, Bilstein shocks,Banks 4inch exhaust, Alligator Adp Cat filter. And S&B air intake good to be driving a diesel again. 2002 Chevy silverado 2500 HD, LB7, traded it on a gasser and then traded it in for LBZ.

11-13-2012, 04:44 PM	eBay Motors #6 (permalink)
biketopia DuramaxForum Veteran Join Date: Aug 2009 Location: Northern VA Posts: 1,275	I reused the gasket on mine. Just soak the bolts with a good penatrent, PB blaster, Aerokroil, for a couple of days before hand and take your time, pull the front pipe out of the exhaust and I also removed the bolts for the trans mount and jacked up the trans and engine to get the old one out. Took a little persuading to get the new one in. I noticed lower EGT's, deeper tone, and quicker cool down. __________________ 2003 2500HD LT CCLB, 4" MBRP, Diamond Eye Down Pipe, Ported Intake Horn, S&B Intake, PPE Boost Valve, ADII, Nicktane CAT Adapter, Edge CTS, Cognito UCA, Rare Parts Tie Rods, Bilsteins, Gear Alloy wheels, Hankook RF10 285's, PPE Level 2, All on Mod, DDM 5k Low's & 4300 Fogs, air horn, on board air http://www.trollperformance.com/ You know you want too

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