Mesh704

Hello guys

I want to share with you what I did to my RC F.

I did delete the secondary cats and replaced it with straight pipe.

05RollaXRS

Good one. Did you leave the resonator or you deleted the resonator as well?

JayLexin

It looks as if its only secondary cats are deleted the resonators are still in the pipes in the pictures... I am keen to see a video/pictures of a secondary cat & resonator delete.

I was not going to cut and wield a straight pipe it, I want to get a custom mid pipe made so I can retain the stock OEM as a direct replacement.

Mesh704

Never delete the resonator because it's the one who makes the nice sound.

Mesh704

Revv video uploaded

tuscani66

iTrader: (2)

Enjoy! I did the same too (more or less) and very happy with the results; personally I wanted a full exhaust swap but the GF didn't want it too loud so this was my compromise.

JayLexin

What is your set up? Do you have any videos?

05RollaXRS

Invidia is brilliant. It has so many layers and textures of sound almost exotic-like, but only louder by about 20 - 30% more than stock. It really makes one appreciate the V8 a lot more. I have wife and two kids. No one is ever bothered by the loudness of the exhaust. It actually makes slow driving in bumper to bumper in manual/sport+ a lot more fun because you enjoy the noise echoing off the cars around you. You are missing out. Once you hear it in real life, you will realize it is not THAT loud at all.

tuscani66

iTrader: (2)

All I did was swap mid section (OEM mid section houses your 2nd catalytic converts and resonators) for an ARH brand mid section (which deletes the 2nd cats but has ARH resonators). The ARH mid section is 3" so is slightly larger than OEM but still mates no problem.

Zero leaks, no codes, reused OEM gaskets.

asinow

Sounds great! I wish somehow we could retain that initial start up sound

rexio83

iTrader: (4)

GF INPUT LOL, sorry if its guy's car

tuscani66

iTrader: (2)

We alternate daily, but this is 75% her daily driver, so she did NOT want it too loud. She did mentioned that she wouldn't mind it a little louder but there is no little louder I told her, once we switch full exhaust it'll be louder than she wants.

We have a few cars, she doesn't like how loud my Audi (my daily driver) is but tolerates that. For what its worth, I'll have it lowered and full CF lip kit on it by summer I hope, new wheels by Fall and that will be the end of the modding for the RCF. She used to drive to work in my 2010 Porsche Cayenne Turbo S a few years ago but when I went custom exhaust from downpipes back it pissed her off and she hasn't driven it since lol.

Tntn707

في كل مكان اطلع لك 👀

Mesh704

Welcome bro

JayLexin

After researching for months on the exhaust set up and to make this clear I was not looking for an increase in HP rather wanting to increase the volume of the OEM setup but retain the sound profile with no RASP!

After looking around on 100's of videos, reading comments, reaching out messaging people who have posted and reading forums including this thread thanks Mesh704 I decided on the secondary cat delete. This achieves exactly what I am after and I am happy with the outcome.

The exhaust shop used 409 stainless (same material as OEM exhaust system) to maintain the look of the stock systems. The wields are identical to factory and very hard to know that anything is altered in anyway.

The increase in volume is around 10-15% and sounds fantastic outside of the car, can be heard inside the cabin if music is off and engine at low RPMs. At WOT higher RPMs in the RC F as you know all you can hear is the intake sound.

There is zero rasp; as rasp can often be a byproduct of significant increased volume!

By the way everything else within the exhaust system is stock including retaining resonators and mufflers.

Here is a clip.