Vibrant Performance Exhaust

[Aeternalis]

Did you install them yourself or have a shop do them? Might have to do it as well. What is the noise difference like?

I had my shop do it along with a ton of other stuff. It was simple enough for them in the middle of everything else that they actually didn't bill me any time for it.

The difference between the poly mounts and M3 rubber is night and day. It is MUCH nicer in the cabin now. I haven't detected any extra slop in my shifts or acceleration either. I figure that since BMW decided to use those mounts on their Street "race car" that they should do a good job on this street car.

Sent from my Nexus 6 using Tapatalk

[bosszhp]

I had my shop do it along with a ton of other stuff. It was simple enough for them in the middle of everything else that they actually didn't bill me any time for it.

The difference between the poly mounts and M3 rubber is night and day. It is MUCH nicer in the cabin now. I haven't detected any extra slop in my shifts or acceleration either. I figure that since BMW decided to use those mounts on their Street "race car" that they should do a good job on this street car.

Sent from my Nexus 6 using Tapatalk

Nice. My car is going to be at my Indy to replace a bearing in the steering rack and wheel bearings, might have them do these too because I have a ton of cabin noise between all those worn bearings lol

[Dual]

No one seems worried about backpressure changes or other issues which might crop up from this mod? Not being argumentative, just double-checking before I make a move.

[Sockethead]

In comparison, the full cat back Corsa system I have in my car uses what they call reflective sound technology... all I know is when I looked through the resonators and the muffler, they are all strait through... no restriction at all. It didn't negatively affect the performance at all... if anything it made my Dinan stage 3 tune work even better...

[FL116]

No one seems worried about backpressure changes or other issues which might crop up from this mod? Not being argumentative, just double-checking before I make a move.

I'm not worried about it.

[Dual]

Got an 1148 (2.5") en route to local exhaust shop.

[FL116]

Got an 1148 (2.5") en route to local exhaust shop.

[FL116]

Bump. Update.

I believe the exhaust is fully broken in now and it sounds great! It has gotten much louder since day 1. I have kept the resonators in since the muffler sounds so good as it is. That's just a quick little update.

As for th people who have gotten these mufflers installed, I would love to see more videos of it.

[GotZHP]

Hopefully a month out from this exhaust. Most maintenance is complete, enough for now anyways. Just hope nothing breaks in the mean time

I did not realize, although should have presumed, that there was a 2.5" and 3" version. On my BRZ, I originally went with a 3" cat-back. I found a 3" to be too large for the 2 liter and there was a noticeable drop in low end torque, but some gains up top. I down sized to 2.5" and was much happier with the second exhaust equipped. The 3" inch pipe really was only needed for FI cars in that application.

My thoughts here, with 3L I-6 (vs 2L H-4) is that the 3" would be better, especially if a tune and intake was in mind.

Id like to hear peoples reasoning as to why they chose the size they did. I will most likely remove the resonator as well

[bosszhp]

Bump. Update.

I believe the exhaust is fully broken in now and it sounds great! It has gotten much louder since day 1. I have kept the resonators in since the muffler sounds so good as it is. That's just a quick little update.

As for th people who have gotten these mufflers installed, I would love to see more videos of it.

Lets meet up and I'll convert you to the resonator delete again