Performance and Accessories 2nd gen only Talk about Dodge/Cummins aftermarket products for second generation trucks here. Can include high-performance mods, or general accessories.

4" exhaust

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Old 04-30-2007, 11:28 PM
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4" exhaust

I got the MBRP 4" aluminized turbo back today and installed it. The install went smoothly but I can't keep/get the downpipe from just contacting the foiled insulator sheet to the left on the firewall. When cinched up this is where the pipe wants to be and I can't rotate it at all when loose. I don't want to catch anything on fire. Anybody have a similar problem with this set-up? Solution? Thanks, Kurt
Old 05-01-2007, 01:29 AM
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Maybe your insulator is sagging. Other than that, the only thing I can think of is to loosen the bolts and keep the downpipe somehow propped down (wood or something), then re-tighten the bolts. Could just be a manufacture defect. Good luck!
Old 05-01-2007, 06:44 AM
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I had a 97 and had the same problem with the mbrp downpipe touching the firewall insulation. The insulation wasnt sagged. I moved the downpipe around but I couldnt find a position that it didnt touch.
Old 05-01-2007, 07:18 AM
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I bet its a manufacturer's defect. They have various exhaust places selling to MBRP and it could be that their Jig was a little off... Call MBRP and tell them whats going on.

Stephen!
Old 05-02-2007, 02:32 PM
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Thanks, I have been keeping my eye on it and nothing is burning but I don't like how it touches. Kurt
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