CSG Touring 86 will keep the volume down with ZERO drone.

You'll ONLY hear the exhaust when you're on-throttle accelerating. At cruise, you won't hear it with any cat, and barely heat it, catless.

I can confirm.


ACE A350
Stock FP
CSG 86 Touring cat back


I was honestly skeptical, just because I was jaded by previous exhaust/makers noise claims. The available sound clips on YouTube don't do the sound and volume justice in my opinion.

On my previous tune (ACE A350, stock FP and stock catback), it was quieter inside and outside the cabin. Confirmed with neighbors and the wife.

Currently working on my FlexFuel tune through Zach at CSG, it's even quieter now. This isn't due to break in or anything, as I bought the catback used.

For daily driving/cruising, you can tell you have a catback, but it's so subtle. You can actually have a conversation without trying to talk over the car. This wasn't the case when I just had the Ace A350.

When you get up the rev range, the volume is increased but it's nothing different tone wise from what you were hearing before while cruising. So it's nothing obnoxious.

I never had drone with either setup. If you are wanting increased volume without being "that guy" and not piss off your SO. You can't go wrong with it.

Can confirm as well that after all the research done in looking for a good quality quiet cat-back, this was quite a great option. I run A350 with stock FP and this cat-back as well. Cold starts can be slightly noisy, but I am currently working on toning that down with the tuner. But when I am talking noisy, I mean to me. Comparing to most exhausts out there, this is quiet. Hard to beat when you have a cat-less header. One thing I noticed that's interesting is it sounds a lot quieter before it ever gets fully warmed up. Once I get it warmed and start revving it out, I'll find that the exhaust tone has gotten louder overall, as if a valve was opened up. Nothing crazy though, definitely a good quality exhaust, love it.

Here is a cell phone clip. Hope it helps

https://photos.app.goo.gl/p6qeLPxBAsbtXmJe9

Here's my set up:
JDL UEL Catted

Invidia 2.5'' O.P
HKS Dual Resonated FP
Invidia Q300 Catback.



Doesnt get much quieter than this. It's a deep exhaust note, semi aggressive unless you're really sending it. It's mostly like a growl.



Insta/reddit:shrapnellbranches. I got a few exhaust clips that you can listen to.

Thank you all for the input.

I'd like to avoid going through the hassle of selling my current catback and switching to another one to be honest, plus I'm a little bit short on money right now.

I just went by a local exhaust shop and they claim they can eliminate 90% of the drone and low rpm noise by creating backpressure in the exhaust, a 1-2hours job for 200€. Something similar to a motorcycle DB Killer / silencer

It sounds like a quick and not too expensive solution, but I'm afraid I might lose some performance and perhaps some of the cracks and pops I can hear some time, what do you think?

I'm otherwise considering the Vibrant 1140 replacement to the stock FP resonator but I've read the difference would not be that big, maybe 10-20% noise difference

Might silence it, but it will probably make it sound horrible. As for performance, catbacks don't really add much HP to these vehicles, and what you'd probably lose will be hard to notice since gains are marginal. What I would suggest is if you still have it, switch to OEM catback, sell your current one, use the money for a different set up.

I have the same setup except with an Ace A350.

This thread actually prompted me to buy the CSG Touring86 exhaust, basically just to try it out.

My perrin 2.5" is not loud but after 50-60k miles seems to have a bit more drone than I remember at first. So why not.

I’m planning to do the same thing with the largest/longest inline muffler or resonator I can find. Either on the front pipe or the mid pipe since it’s longer and could fit a bigger silencer.

Here's my setup: JDL 4-2-1 Header, Stock OP/FP, Invidia R400.

https://www.youtube.com/watch?v=1XRtw833y3s

https://www.youtube.com/watch?v=x3lCW1tujhk

https://www.youtube.com/watch?v=e8r8O1jlzCY

It's very tame when cruising around town, but similar to your Perrin it can be a bit on the droney side at 125-130kph (77-80mph) in particular on the highway. I'll probably add in a Vibrant resonator like @jflogerzi did once my car is out of storage in the spring, or, sell the R400 and pick up the MXP/CSG Touring86.

a less common setup, Apexi header system quiets down most catbacks quite significantly. I believe @mav1178 posted some sound measurements and stated it even made the blitz nur-spec catbacks much quieter

It will fit in the FP. LMK if you want to see my placement.

I would try the resonator. From outside it sounds great.

Are you sure the 1140 will fit? My TRD cat back measures 2” and the 4.75” diameter body will be awfully tight.