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      02-04-2018, 12:34 PM   #23
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Originally Posted by ksteckba View Post
I hate slip fit connections, so after fiddling with it for a bit and still having leaks (no RTV) I just had an exhaust shop weld it (they didn't even need to remove anything.
I will give it a shot. If it leaks, I will weld. Looking forward to getting the tune and the parts so that I can prep the car for summer!!
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      02-07-2018, 07:51 PM   #24
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Got my AA test pipes today. They are REALLY well built. Once I get my other items sorted on my car, I will have to install these.
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      02-09-2018, 12:37 PM   #25
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Dinan mufflers with test pipes on the oe xpipe sounds weak. If you want the best sound out of the Dinan exhaust get a full catless midpipe.

Example Sound:
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      02-09-2018, 01:07 PM   #26
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i have dinan section 3 behind my evolve X-pipe with highflow secondary and resonators, and the exhaust imho sounds perfect. I do DD my m3, so obnoxious was out of the question. Most common comment I get from other M car owners is "your exhaust sounds more tuned than others".
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      02-09-2018, 10:00 PM   #27
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Thanks for the suggestions.

Currently I am not looking for any louder sound. I just want a bit more power. I will see how it goes and keep this in mind.

Cheers,
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      02-10-2018, 08:10 AM   #28
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Originally Posted by Scharbag View Post
Thanks for the suggestions.

Currently I am not looking for any louder sound. I just want a bit more power. I will see how it goes and keep this in mind.

Cheers,
If you want more power then you need an x-pipe with the crossover moved further forward compared to oem. The only X-Pipes that have this ideal crossover location is Bimmerworld, MRF, and Gintani.

Please see this post for details on the importance of crossover location: http://www.m3post.com/forums/showthread.php?t=855575
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      02-10-2018, 02:46 PM   #29
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Originally Posted by project e46m3 View Post
If you want more power then you need an x-pipe with the crossover moved further forward compared to oem. The only X-Pipes that have this ideal crossover location is Bimmerworld, MRF, and Gintani.

Please see this post for details on the importance of crossover location: http://www.m3post.com/forums/showthread.php?t=855575
From what I read, removing the restrictive cats does offer some gains. For the price of a new X-Pipe vs test pipes, I will try this first.

I also do not want to smell fuel or have drone, so I would need to find a good x-pipe with some cats in it. Those are even more money.

Might upgrade later.

Cheers,
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      02-13-2018, 08:13 PM   #30
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The smell with the test pipes is a little more potent than with the cats when started in my garage with the doors cracked. Not terrible but you can notice it.

I am sure when it is outside it will not be bad.

I would comment on sound change if I had mufflers on the car right now...

UPDATE: Put the mufflers back on and the test pipes do not change much when driving normally. No drone with the Dinan setup that I can tell. They do have more rasp when you give it the happy pedal
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      07-11-2018, 04:23 PM   #31
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Quote:
Originally Posted by Scharbag View Post
The smell with the test pipes is a little more potent than with the cats when started in my garage with the doors cracked. Not terrible but you can notice it.

I am sure when it is outside it will not be bad.

I would comment on sound change if I had mufflers on the car right now...

UPDATE: Put the mufflers back on and the test pipes do not change much when driving normally. No drone with the Dinan setup that I can tell. They do have more rasp when you give it the happy pedal
Any More to update? I'm thinking going as test pipes and dinan exhaust
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      07-11-2018, 05:23 PM   #32
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Also curious about your thoughts with this setup. Any smell?
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      07-15-2018, 05:10 PM   #33
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Originally Posted by msan View Post
Any More to update? I'm thinking going as test pipes and dinan exhaust
After putting around 10,000KM on these I can say that I would not do it over if given the choice.

The smell in a garage is not terrible but certainly worse than with primary cats. That is not the issue for me. I have never smelled any odour when outside or driving around.

The reason I would not do this again is the added full throttle rasp that the test pipes introduced. I find it just a little much. This is likely due to me getting older . Just driving around, the test pipes are fine. And on the highway at 85MPH, sounds great and has no drone.

Probably going to try to find a nice X-pipe with high-flow-cats for next year.

Hope this helps.

Cheers,
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      07-15-2018, 05:26 PM   #34
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Cat converters act like a small muffler. Test pipes are going to make the exhaust sound tinny and raspy, as people have said on here for as long as I can remember. I don't really get why people sacrifice a nice smooth exhaust note (and pollution) for the sake of a few extra HP.
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      07-15-2018, 05:57 PM   #35
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Quote:
Originally Posted by dparm View Post
Cat converters act like a small muffler. Test pipes are going to make the exhaust sound tinny and raspy, as people have said on here for as long as I can remember. I don't really get why people sacrifice a nice smooth exhaust note (and pollution) for the sake of a few extra HP.
I regret my actions every day I drive my car

And I agree, this is the first time I have removed cats from a car and it will be the last. I do not really need the extra power as, if I am honest with myself, ~414HP is more than enough.

Cheers,
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      07-19-2018, 01:47 PM   #36
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I have Dinan paired with Turner test pipes and it sounds great. I want to get a tune from Alex at Alpine next, trying to figure out the CEL issue.
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      07-19-2018, 03:49 PM   #37
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Quote:
Originally Posted by Scharbag View Post
After putting around 10,000KM on these I can say that I would not do it over if given the choice.

The smell in a garage is not terrible but certainly worse than with primary cats. That is not the issue for me. I have never smelled any odour when outside or driving around.

The reason I would not do this again is the added full throttle rasp that the test pipes introduced. I find it just a little much. This is likely due to me getting older . Just driving around, the test pipes are fine. And on the highway at 85MPH, sounds great and has no drone.

Probably going to try to find a nice X-pipe with high-flow-cats for next year.

Hope this helps.

Cheers,
What you want to do is pair your dinan exhaust with the dinan catless midpipe, you will still have the smell but sound will be drastically improved. The only way to find one though is used, took me several months before one popped up for sale in california.
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