3rd Generation Specific (1993-2002) 1993-2002 Discussion including performance modifications and Technical Support Sections.

Downpipe quest

Old 04-12-19, 07:32 PM
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Downpipe quest

Just finished changing out the stock precat with a Bonez dp. I've never felt so defeated and satisfied at the same time. Had a hell of a time aligning the studs back in. I'm glad it's done, but I don't want to do this again.

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Old 04-12-19, 11:54 PM
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Good job.
Glad you didn't break any studs.

I remember very distinctly that this job sucked.
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Old 04-12-19, 11:58 PM
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Which downpipe is that? Nice that it's coated.
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Old 04-13-19, 12:07 AM
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Originally Posted by Narfle View Post
Which downpipe is that? Nice that it's coated.
Hahaha he clearly said bonez downpipe (dp)
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Old 04-13-19, 07:38 AM
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Agree, the job sucks. But it's a good thing you got that pre-cat off. Have the same DP and think it was that lower-aft stud that caused the most naughty words for me. It was hard to get a good perch on the nut and not round it off.
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Old 04-13-19, 08:43 AM
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Yeah! The lower nuts were incredibly tough to tighten. I can't think of any socket that can go over it. I was pretty stressed about rounding off cause I was slipping a bit
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Old 04-13-19, 08:53 AM
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I know the feeling. Spent time under the car sobbing at some points, took me 6 weekends and some weeknights to get it completed.
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Old 04-13-19, 03:36 PM
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I recommend new studs and exhaust nuts if it’s not too late. FWIW I chased the holes with a tap and used liberal amounts of copper anti-seize going back on.

Last edited by Sgtblue; 04-13-19 at 03:39 PM.
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Old 04-13-19, 03:57 PM
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I changed out my US OEM down pipe with a JDM downpipe, it was hard getting the OEM off, about 3 hours but putting the JDM downpipe on took about 1 hour it fit-up great !
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Old 04-14-19, 09:40 AM
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Good job!

I'd also recommend new nuts
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Old 04-14-19, 02:26 PM
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Definitely replaced the studs and nuts. Also applied anti-seize on both ends.
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Old 04-15-19, 08:25 AM
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Replacing the studs with stainless socket head cap screws makes this job so much easier...
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Old 04-15-19, 05:14 PM
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The JDM downpipes offer a straight shot to the 4 studs so you can easily get a socket wrench on each nut. The American downpipes don't do this most times - it's cheaper to have a curved pipe than a cast head section.

The Bonez is nice but it does take some extra work to install.

Dale
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