North Shore 911

Here are the 3 stages of evolution on my 997.2 C4S Cab. The first clip is the all-stock exhaust system. It really sounded less-than-impressive, so I then installed the PSE, which gave it a much more aggressive exhaust note and growl. However, it still seemed to lack the sound I was after, so I just installed a set of Fabspeed Sport Headers and 200-Cell HJS Cats. The evolution of the sound is amazing, and I now find myself driving with the top down in all weather (rain included!) just to hear this amazing exhaust note and acceleration. The video clips really don't do the actual sound justice, but given that I had a hard time finding clips with these 3 different set up online I though I'd share clips of all 3 iterations of my system in the hopes that it helps others find the exhaust note they're after. Enjoy the vids, and I'll try to post a GoPro shot of the car under acceleration with this new set up. It's awesome ....

997.2 C4S Cab with Stock Exhaust

997.2 C4S Cab with PSE and Stock Headers & Cats (PSE "Off" until about 25 seconds then "On" for the rest of the clip)

997.2 C4S Cab with PSE, Fabspeed Sport Headers and 200-Cell HJS Cats (PSE "Off" until about 25 seconds then "On" for the rest of the clip)

Saaboteur

Version 3 is great! I can feel the tinnitus starting already...

North Shore 911

The last open question on my final exhaust set up was "Will it pass the Emmissions Test here in Illinois?". The good news is that the answer is "Yes", and I've got the 2017 registration sticker in hand to prove it

Next visit scheduled for 2018 .....

rbennett

Nice documentation North Shore, thank you for posting!

You captured the sounds better than most in the videos. I will be doing something similar when CPO is over.

lowbee

Nice sound..... maybe it is the angle of the video but it looks like the Fabspeed headers hang just a tad lower than the stock headers ? Can't really tell, what do you think ?

vern1

I have heard fabspeed and other aftermarket headers hang lower than the x51 headers and stock headers. Don't know the exact measurement but one of the reasons I went x51 on my car as its also on H&R springs

John@Fabspeed

Thanks for the great documentation and posting up your results! If you are ever in the Philly area please stop by, i'll be sure to show you how we made those headers and introduce you to the guys behind the scenes that make it happen. Let me know if there is anything else I can help you with

When CPO is up (or even before) i'd be happy to work with you on a set. PM sent

We utilize a bit more space to ensure optimal sizing and length of the primary tubing for sound and performance improvements. It is a smidge lower than factory, but negligible to the point we have never bothered to measure the difference. I have never had any issues with my clients, and could find no record of any asking around the shop, that would have been resolved with additional clearance from our headers to the ground.

Petza914

That 3rd video with the final setup and the license plate upgrade is great. I have the same setup as you on my .1 but also with the Fabspeed Valvetronic Mufflers (their version of PSE) I integrated with my PSE dash button.

Here's a quick clip of mine
https://youtu.be/VMJ_NLjjJNw

I need to do a full acceleration run to the higher recs, as that's where the setup really sings, like yours.

Was the engine and outside temp really as cold as it looked when you were revving the motor up in the first video - not sure that's the best idea on a cold engine with cold oil in a cold climate :-/

There's also what sounds like a very noisy lifter at 40 seconds in the first video after the revving that then quiets down, but that's a fairly long time for a lifter to pump up so maybe keep an eye on that.

John@Fabspeed

Still one of my favorites

Thanks for posting!

ncracing

Very funny! And you have great taste in cars. I have an 06 C4 and a 2011 9-3

ncracing

Very funny! And you have great taste in cars. I have an 06 C4 and a 2011 9-3

fayraree

How come you never did a center muffler bypass?

Elonash

Nice set up !!
I have a .2 with a X-pipe and valved mufflers and even with closed valves it's amazing ! Needless to say that in a tunnel with the valves opened the cars jump on the right lane before I show up

BTW I see that license plate from Paris, have you been living there ?

Rgds

BLU997

@North Shore 911 I have the same setup, PSE,Fabspeed headers with 200 C cats.

I tried a merged X pipe with PSE, and headers but its way too harsh a tone, embarrassing even.

The Fabspeed headers with PSE is just perfect.

North Shore 911

Hah, good eye to catch that “75” number plate on the wall. Yup, we lived in Paris from 1994-1997, then moved to London for 10 more years before moving to Chicago back in 2006. That plate came off our old BMW 525 TDS estate that we bought in Paris when our twin sons were born. Good memories from our time in Europe