Spammer

I am new to the forum and have a 2015 CS2 PDK car without PSE. I want to improve the tone of the car, and volume of sound ever so subtly, maybe getting it closer to the same sound level as a PSE car but with a more exotic tone. My plan would be to "leave it on all the time" vs investing in a system that has an "open and closed" option. Any performance increase is a bonus, and it appears most of the major systems make the car breathe better and thus increase HP and TQ. (amounts can be debated)

I just purchased a Fabspeed X-Pipe to eliminate the center muffler as it appears to be a safe and sensible place to start. It is being installed next week. I am told that I can expect the tone to change slightly and the sound to also slightly change. My concern is it may not be enough, but I am cautious not to go too far as most of the systems are simply too loud for my tastes. Lol!
Two questions:
1. I am curious to know if there is anyone out there that has the Fabspeed X-Pipe with their MaxFlo mufflers as well, and if so, does that set up provide any additional increase in tone and sound over just the X-Pipe? There are vid's online that have that setup, but also include the intake, which I will not be doing. Since so much sound can come from the intake, I don't think it is an accurate depiction of what to expect.

2. Anyone out there just using the Fabspeed X-Pipe on a non-PSE car and happy with results while retaining the stock main mufflers?

Thanks in advance for any help out there! This is a great forum.

Cristophosphorus

IIRC, since you have a C2S, the only difference between PSE and non-PSE is that your car has automatic vacuum control that opens and closes the valves based on RPM range, speed (open at idle, closed above 5mph, etc,) and throttle input but obviously doesn't have manual control like PSE cars.

Based on that, if you're replacing the center muffler with an xpipe, you're going to affect the sound only when the vacuum is triggered (only when you're at idle, at moderate throttle over 3,300rpm, etc).

If you're also replacing the side mufflers, the only time you'll notice a difference in tone is when the vacuum hasn't been activated and the car is in "quiet" mode.

I would recommend saving your dough and giving the x-pipe a shot before pulling the trigger on side mufflers. I'm sure others can chime in with more (or more accurate) info.

For reference:

Quiet mode: Exhaust travels through both the center muffler AND the side mufflers, thereby making it quieter.

Loud Mode: Exhaust travels through the center muffler only (or, as some have mentioned, MOSTLY through the center muffler), thereby making it louder.

Spammer

Thanks Cristophosphorus - appreciate the insights and your understanding of the system(s) and their differences. I agree with you about giving the X-Pipe a shot. If anyone has any add'l comments, insights, or experiences, please chime in. Thanks again.

Spammer

I just got the X-pipe installed today. My initial impressions are as follows:
1. At idle and just off-idle the sound is at the same volume but the tone is sportier.
2. At mid range there is definitely more power and throttle response. The sound volume is higher slightly, and the tone is much sportier.
3. At upper RPM the sound volume is up a bit more and the tone is sweet. Coming off the higher RPM and letting it rev down there is more of a growl.
Overall I am very pleased with it. I can't wait to get it out for a more spirited drive to really test it out! The only draw back, again going from a non-PSE C2S is that the exhaust is now only going out of one tip rather than two. Its a small thing and I am sure no one will notice this, so I just have to get over this. It went on perfectly and the fitment and overall quality appears excellent.

Spammer

BTW - I should mention, I retained the factory side mufflers.

Cristophosphorus

Awesome. Sounds like you're happy with it for now. Keep us posted!

Spammer

Yes, I would say that I am very pleased and quite honestly impressed more than I thought I would be. I took it out last evening for a spirited drive of about 100km (60 miles). Kept it in sport mode almost the entire time, sometimes letting the PDK do its thing, sometimes with me playing with the paddles.

The mid range is where this x-pipe really shines!

Throttle response is better, and the sound is delicious! All of the tinny and metallic sound from the stock exhaust is gone, and it has been replaced with a growl. A couple trips into the higher register really emphasized the sound volume increase and the improvement in overall tone. I can see why Fabspeed is selling a ton of these things!

Clearly the motor is breathing better and "happy" with the mod. As a former owner of high compression classic V8 muscle cars (all of which had an X-pipe on them), the results are similar - better flow.

For what it is worth, I would recommend as at least a good starting point for those that have similar objectives as what I had. Don't get me wrong, I love the sound of a 991.1S w/ headers and race exhaust, but not on a car that I am daily driving, which I am.

Cristophosphorus

Awesome. I'm glad you decided to wait before ordering more parts for the exhaust system. Most times, people find that a single change (like your x-pipe) is exactly what they are looking for.

I myself ordered and installed an AWE SwitchPath on my GTS. It's ridiculously loud and I love it. HOWEVER, interestingly enough, I removed the AWE tips and installed my stock GTS tips back on, and the system is much more tame. It's a good/bad thing IMO, because I'm missing some of that loud edge it had, but I'm also enjoying the fact that I can keep the valves open during my daily commute and not be bothered by the drone. We'll see what I decide to stick with.

John@Fabspeed

I appreciate the detailed feedback on our product! It is superb fellows like yourself that truly make this community so strong and informative