View Poll Results: What downpipe bolts did you use?

I used the stock bolts with spring

58.06%

I used aftermarket metric bolts (no spring)

41.94%

Voters: 31. You may not vote on this poll

What bolts did you use on your downpipe?

Jeff_Jeske · 2005-07-13 15:52:35

stockers on my Helix V3 downpipe{thumbup}

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Jul 14, 2005 | 09:18 PM

#31

anjapower

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From: Dirty Jersey

stockers on my Helix V3 downpipe

Jul 14, 2005 | 09:18 PM

#32

Jeff_Jeske

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From: On the track

Install complete.....DP very close to the oil pan.

Pretty loud......but sounds very good in my opinion.

Didn't pick up as much power as I expected to. Went from stock exhaust w/XEDE to full TBE with new XEDE tune. Feels like 25HP at best.

Jul 14, 2005 | 10:19 PM

#33

bullfrg

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I picked up 27hp and 32 lbs trq when I installed my turboback. Then I picked up 47 hp more when I got tuned.

Jul 15, 2005 | 08:09 AM

#34

Jeff_Jeske

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From: On the track

Quote:

Originally Posted by bullfrg

I picked up 27hp and 32 lbs trq when I installed my turboback. Then I picked up 47 hp more when I got tuned.

I don't doubt that at all....going from stock to stock with tune felt like more of a boost than the TBE.

Jul 15, 2005 | 09:31 AM

#35

sMIThSUBISHI23

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From: Jersey

On my Stock Spring bolts the threads were gone. Had to go with the aftermarket Buschur Ones no problems, So far.

Jul 15, 2005 | 10:22 AM

#36

Jeff_Jeske

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I used some bolts from the hardware store 10 X 1.25 metric with lock washers. So far soo good. No leaks .... no rattles.... but every once in awhile during spirited driving....I do get a backfire.

Jul 15, 2005 | 12:31 PM

#37

evokong

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From: DANVILLE VA

stock bolts

Jul 16, 2005 | 01:02 PM

#38

Thegame

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From: Pittsburgh, PA

Quote:

Originally Posted by BRKENG

I used stock bolts also.

As far as the spring over compressing..... I strongly suggest you use a torque wrench on those! If you over compress them you'll bend the small flange on the bolt that compresses against the O2 housing. The spring forces will bring the bolt heads to the required torque. I belive it is 37 ft *lb. ....... I am having a leak issue. But it is related to the Dp not seating correctly to the old OE donut. I am subsequently ording a new one from Mitsubishi to replace the old one. Still planning on using the old bolts however. Anyone elses DP run awfully close to the oil pan?

Thanks,
tim

The problem with using a torque wrench is this: I had it set for 37 ft-lbs and the only time it clicked was when the bolts were already fully threaded in the O2 housing. It just doesn't work with my HKS downpipe. Anyone else have an HKS downpipe? What did you do?

Jul 17, 2005 | 02:31 AM

#39

marksae

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Quote:

Originally Posted by Thegame

I have an HKS downpipe and I've been torquing my downpipe to o2 housing bolts down the same way and never had an issue. Once the bolts bottom out, I just torque them to 37 ft-lbs. I've never had a leak and the bolts have never come loose.