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      05-06-2020, 01:51 PM   #441
derbo
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Quote:
Originally Posted by BayE30 View Post
CA BAR states that any modification to the exhaust before the catalyst ( in our case we have 2 catalyst) is illegal. So technically installing V-band clamps after the primary is considered modification, and therefor illegal. Now whether or not this is cited during emissions inspection is a different story. On my last inspection, the technician took about 20min checking my car up and down and even crawled around on the floor trying to find any evidence of tampering with the exhaust. In this scenario, i would have been cited if i had V-band clamps after the primary catalyst.
Makes sense. I totally forgot that it's after the primary but before the secondaries so it would be illegal.

Anyone want to store an xpipe for me?
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      05-06-2020, 02:40 PM   #442
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Quote:
Originally Posted by derbo View Post
Makes sense. I totally forgot that it's after the primary but before the secondaries so it would be illegal.

Anyone want to store an xpipe for me?
I just stand mine up against the wall. doesnt take much space.
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      05-06-2020, 02:44 PM   #443
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Quote:
Originally Posted by BayE30 View Post
I just stand mine up against the wall. doesnt take much space.
if does if you don't have a wall to put it up
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      05-06-2020, 11:42 PM   #444
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Quote:
Originally Posted by derbo View Post
if does if you don't have a wall to put it up
hang it?
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      06-02-2020, 10:37 PM   #445
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Hi derbo just want to thank you for the informative posts. Very helpful! Best luck with your build!
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      06-03-2020, 12:51 AM   #446
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Hi derbo just want to thank you for the informative posts. Very helpful! Best luck with your build!
Glad you were able to get something out of it! Cheers!
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      06-30-2020, 01:59 PM   #447
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Minor Update


I haven't updated this thread in a while and it's probably a good time to do so! Very minor updates here so nothing too crazy.

Wheel bolts and BBS black center caps


There have been many discussions about screw-in wheel studs breaking and lack of strength compared to their press-in cousins. Core4motorsports now offers a solution with press-in studs in M12 and M14 but it's far from being cost-effective for me at the moment. My interim solution is to go back to wheel bolts for now and wait for more data from track rats.



And on that note, I also decided to go to the Black BBS center caps as it provides some more subtlety to the an otherwise stock exterior car. The black Stoptech calipers complement this subtlety and make the whole car feel OEM+. I like it!



No more mods 2020! Wait..maybe one more...


Earlier this year, I added the Stoptech BBK thinking that will be the last modification upgrade of the year. Well, turns out I am wrong.

Supersprint makes quality parts and has been well-known in previous generation BMWs as one of the go to's for a proper exhaust setup. After viewing a ton of videos and assessing looks, price, sound, I came to the conclusion that Supersprint F1 Race was my exhaust to get. It is supposed to have little to no drone at freeway speeds, lightweight, decently priced, and sound higher pitched.

Quote:
Originally Posted by Turner Motorsport
The Supersprint "F1 Race" mufflers are a more dramatic sound than the standard Race muffler design. They are tuned to sound more like a race bike than a low-revving V8 muscle car. It's louder and tuned to increase the high pitch at higher revs. They are a free-flow design for minimal restriction and light weight.
So of course I have been waiting for a used one to pop up for awhile now and last week //steve\\ sends me a link via text about Supersprint F1 Race Exhaust system in the classifieds. Mind you, these systems are pretty rare in E90 form, and even more rare for sale. Luckily I was able to get a hold of the seller and ship it my way! It was great as the setup included the optional OEM mid pipe connector adapters too! Thank you DanMpower for the sell!

Installation was straight forward. I really like the fitment of the exhaust tips as most exhausts are geared towards E92 which have longer tips.










## Initial Review
Idle is lower tone, more bassy
No drone at freeway speeds
Loudness is not bad at all with factory OE mid-pipe.

Video on IG:


## Future upgrades on the exhaust department
Maybe test pipes are in my future? There are two reasons I never got test pipes: 1. I did not like the sound the OEM Exhaust 4pipe mod + Test pipes combo makes. 2. SMOG. Now that one reason is gone, maybe I might be more willing to overlook the latter reason. All the videos I've heard of FULL SS F1 exhausts are wonderful but I don't think I've heard one with test pipes and SS F1 race exhausts yet.

I am happy with the outcome of this exhaust and I hope to drive it even more as the world starts opening up again.
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Last edited by derbo; 06-30-2020 at 10:26 PM..
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      06-30-2020, 08:22 PM   #448
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Love it!!
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      06-30-2020, 09:07 PM   #449
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the supersprint sounds amazing. if you're thinking about going test pipes, still recommend going full x-pipe! hang your oem one from the rafters in garage or on the wall.

unless you're homies with the smog shop, some places will fail you for having clamped on cats.
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      06-30-2020, 09:21 PM   #450
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The next time I need to take my xpipe off, I will probably put the OEM one back on. I've had my fun for 2.5 years with my MPE/afE HFC setup but I miss being able to accelerate hard withot waking up and being haunted by my ancestors

But absolutely have your fun first. Every one of these motors deserves to be uncorked for at least part of its life
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Last edited by Richbot; 06-30-2020 at 09:27 PM..
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      06-30-2020, 10:21 PM   #451
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Quote:
Originally Posted by wyatth View Post
Love it!!


Quote:
Originally Posted by s0ldats View Post
the supersprint sounds amazing. if you're thinking about going test pipes, still recommend going full x-pipe! hang your oem one from the rafters in garage or on the wall.

unless you're homies with the smog shop, some places will fail you for having clamped on cats.
True.. storing a factory xpipe is going to be a hassle. It was already a pain to find a spot for the stock axleback! I might give up the idea.

Quote:
Originally Posted by Richbot View Post
The next time I need to take my xpipe off, I will probably put the OEM one back on. I've had my fun for 2.5 years with my MPE/afE HFC setup but I miss being able to accelerate hard withot waking up and being haunted by my ancestors

But absolutely have your fun first. Every one of these motors deserves to be uncorked for at least part of its life
The lure of removing the primaries is very high but I don't really have a good place to store a factory xpipe at this point. The more I think about it, the more I am with keeping my OEM mid-pipe on just for the sake of practicality and not having to deal with storing the pipe or dealing with smog.
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      07-01-2020, 10:41 PM   #452
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That sounds great. Nice deep tone to it.
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Quote:
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      07-02-2020, 07:07 PM   #453
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Quote:
Originally Posted by cyberkaa View Post
That sounds great. Nice deep tone to it.
Thanks buddy!

We need to some sushi..

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      07-03-2020, 04:23 PM   #454
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Quote:
Originally Posted by derbo View Post
Thanks buddy!

We need to some sushi..

I know, man.
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Quote:
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      07-04-2020, 08:57 AM   #455
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Time for testpipes!!
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      07-04-2020, 12:52 PM   #456
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Quote:
Originally Posted by Drifter2090 View Post
Time for testpipes!!
I keep going back and forth on that. The old guy in me, wants to just not deal with smog.
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      07-05-2020, 12:50 AM   #457
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Love your build! I'm big on clean and OEM.
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      07-05-2020, 10:50 PM   #458
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Quote:
Originally Posted by M3_Legend View Post
Love your build! I'm big on clean and OEM.
Thanks!
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