[JABCAT]

Trying to install the MAD resonated mid-pipe & am running into a couple issues. No installation instructions included (shocking) & the installation video MAD links to is awful. This should be pretty straight forward & I've installed many sets of headers & exhaust systems on many different vehicles. End rant.

1st question is the diameter of the opening on the MAD mid-pipe is smaller than that of the stock pipe where they meet the down pipes (pic attached). The stock pipes have a removable ring where the pipes meet. If I leave this ring on the down pipe, the MAD pipe won't seat properly.







2nd question is the two short pipes that connect the middle section to the axle-back exhaust are noticeably smaller in diameter than the pipes they connect to on the muffler. The band clamps provided don't seem to cinch down tight enough to keep the smaller pipes from moving inside the larger pipe. I have the MAD axle-back so I would expect a much more snug fitment.



3rd is the mid-pipe didn't come with the MAD brace so where do I use & how many washers have you used on the stock brace.
Thanks!

[JABCAT]

Nevermind - it's moot now. Trying to get the MAD pipe to seat correctly I over-tightened & snapped one of the bolts on the down pipe flange. There's enough threads left to connect the stock pipe, so that & the Dinan x-pipe are going back on for the time being.

[Good 4 2 reasons]

Originally Posted by JABCAT

Nevermind - it's moot now. Trying to get the MAD pipe to seat correctly I over-tightened & snapped one of the bolts on the down pipe flange. There's enough threads left to connect the stock pipe, so that & the Dinan x-pipe are going back on for the time being.

When I installed mine (midpipe w/o resonator) I did have issues getting the midpipe to seat nicely into the downpipe. I am sure I had to over-tighten the nuts to get it to seal without a huge gap. I thought it was just my "virgin installation" since this is my first exhaust mod I have ever done.

I need to double check mine and see if the downpipe connection is leaking or properly sealed.

I wonder if anyone else had less than perfect downpipe to midpipe fitment issues with the MAD single midpipe?

[TallGibbs]

Info@mad-us.com Tagging you because you might want to see these posts and take back to the technical/QA team.

[JABCAT]

Another member had his resonated mid-pipe installed and it appears to fit flush based on the photo he sent me. Mine definitely did not come anywhere close to fitting like this below.

[Murp]

I have the same issue with the MAD non-resonated midpipe, can't get the bottom flange to seat with the gasket on. Tried to test fit with the crossover pipe flange and it does look like its slightly too small to fit. Regarding the cross brace - I didn't receive one either and they are supposed to be shipped out later.

[mike@x-ph.com]

you should contact MAD directly for faster help

[Info@mad-us.com]

Originally Posted by mike@x-ph.com

you should contact MAD directly for faster help

Currently looking into this issue.

[Info@mad-us.com]

Originally Posted by Murp

I have the same issue with the MAD non-resonated midpipe, can't get the bottom flange to seat with the gasket on. Tried to test fit with the crossover pipe flange and it does look like its slightly too small to fit. Regarding the cross brace - I didn't receive one either and they are supposed to be shipped out later.

You are only having issues seating it on this one downpipe not the other? The other looks flush above in the photo.

[Good 4 2 reasons]

I have the downpipe flange nuts tightened like it was tightened by Zeus himself and this is as good as I can get the midpipe to go on the downpipe flange.

[Murp]

Originally Posted by Info@mad-us.com

You are only having issues seating it on this one downpipe not the other? The other looks flush above in the photo.

Yes, the top downpipe fits fine, the bottom one doesn't go much further than this. I could feel the bolts straining and did not want to strip the threads pushing it more

[Info@mad-us.com]

Originally Posted by Murp

Yes, the top downpipe fits fine, the bottom one doesn't go much further than this. I could feel the bolts straining and did not want to strip the threads pushing it more

1.The two flanges do not have to be completely flush to get a great seal the connection in this photo looks just fine on the upper pipe.

2.Both flanges are identical in size and made via cnc machine so the tolerances are extreme small.

Based on all the photos posted what appears to be happening is not related to the gasket but it it looks like the downpipe extension is possibly binding up on the inside of the pipe after the flange due to the angle.

I would advise to unbolt the top connection first and seat the lower one then the top. Do not overtighten the nut if the gasket is not sitting flush.

[JABCAT]

Originally Posted by Info@mad-us.com

1.The two flanges do not have to be completely flush to get a great seal the connection in this photo looks just fine on the upper pipe.

2.Both flanges are identical in size and made via cnc machine so the tolerances are extreme small.

Based on all the photos posted what appears to be happening is not related to the gasket but it it looks like the downpipe extension is possibly binding up on the inside of the pipe after the flange due to the angle.

I would advise to unbolt the top connection first and seat the lower one then the top. Do not overtighten the nut if the gasket is not sitting flush.

I tried seating the bottom down pipe first as suggested above, but that only made things worse. The gasket sits flush inside the stock pipe but sits a few mm above the lip of the MAD pipe.

[Good 4 2 reasons]

The second downpipe also had a significant gap as well.

What is the torque target? It will be quite easy to tighten to your recommendation, on the bottom connection first, then attempt the top, and if they are leaking, I will know if I have an issue.

[Info@mad-us.com]

Originally Posted by Good 4 2 reasons

The second downpipe also had a significant gap as well.

What is the torque target? It will be quite easy to tighten to your recommendation, on the bottom connection first, then attempt the top, and if they are leaking, I will know if I have an issue.

Torque spec is not that high like 16 ft lbs . We use a concave style flange that is shallower compared to stock so as long as the gasket is flush it will not leak.