991.2 Akrapovic exhaust for GTS - anyone going aftermarket
#17
It's more about Porsche's headers that really can't be beaten. If porsche did 200 cel cats in our cars from the factory you couldn't do better, but seeing as they are 400 or whatever cel...the 200 does allow for some better breathing. The OEM mufflers are normally heavy but they do tend to have pretty good performance. You're only ever really playing with maybe 1-2 real hp when replacing that stuff...granted the aftermarket ones are normally a lot lighter...so taking that 25-30 lbs off generally has a decent effect as well.
Vektor Headers 991.2
I had a full Akra on my M4 and loved it. I want to get an Akra and these bad boys.
#18
Ummm, if you look at 991.2 it does not have Headers like 991.1 The point two have the ugly old LOG type. So there is plenty to be gained with a decent set of headers in a point 2.
Vektor Headers 991.2
I had a full Akra on my M4 and loved it. I want to get an Akra and these bad boys.
Vektor Headers 991.2
I had a full Akra on my M4 and loved it. I want to get an Akra and these bad boys.
I've been looking at these as well. Would like to see a dyno sheet showing the gains, but most importantly, the low end of the curve, as I don' want additional lag.
#20
Rennlist Member
Thread Starter
Are sport cats worth it in .2 GTS...hell ya it is.
Although, I am not convinced the Akra version is worth the price over say Soul Performance.
Prior to ordering, I went back and forth since I wanted to have everything match my Akra slip on (mainly due to my OCD).
But after speaking with Akra reps and Soul reps, I opted to go Soul Performance sport cats for Akra slip on...after removing the bypass pipes.
Soul performance building my specific set of sport cats.
#21
Prior to ordering, I went back and forth since I wanted to have everything match my Akra slip on (mainly due to my OCD).
But after speaking with Akra reps and Soul reps, I opted to go Soul Performance sport cats for Akra slip on...after removing the bypass pipes.
Soul performance building my specific set of sport cats.
But after speaking with Akra reps and Soul reps, I opted to go Soul Performance sport cats for Akra slip on...after removing the bypass pipes.
Soul performance building my specific set of sport cats.
As I read somewhere OEM GTS cats are 400 cells and in case of 200 cells the noise and performance increase in a good level.
I am based in EU therefore not many options available as US.
Thanks
#22
Thanks for the feedback.what is the difference between Soul Performance sport cats Vs Akrapovic?
As I read somewhere OEM GTS cats are 400 cells and in case of 200 cells the noise and performance increase in a good level.
I am based in EU therefore not many options available as US.
Thanks
As I read somewhere OEM GTS cats are 400 cells and in case of 200 cells the noise and performance increase in a good level.
I am based in EU therefore not many options available as US.
Thanks
#23
I ordered the Akra system with cats last week and hope to install soon. I’ll post a review vs pse in a few weeks. I’m soooo excited. I’m in an S but should be similar results. I’ll probably do a before and after dyno too.
#24
#26
Rennlist Member
Thread Starter
IIRC, the Akra sport cat link pipes are stainless and therefore, not appreciable weight difference from Soul Sport Cats...
Which is why I could NOT justify spending nearly twice as much for the Akra sport cats.
Last edited by BlazinPond; 05-06-2018 at 08:43 AM.
#27
Dyno before and after will be very helpful to determine the upgrade benefits.
#28
Has anyone posted a walk through on the exhaust/cat installation? Akrapovic says to remove the rear bumper, but I'm wondering if this is really necessary. If it really helps to remove the bumper, then I guess I'll install my BMC air filter at the same time.
I didn' have much luck searching, so if someone could point me in the right direction, I'd sincerely appreciate it.
I didn' have much luck searching, so if someone could point me in the right direction, I'd sincerely appreciate it.
#29
Has anyone posted a walk through on the exhaust/cat installation? Akrapovic says to remove the rear bumper, but I'm wondering if this is really necessary. If it really helps to remove the bumper, then I guess I'll install my BMC air filter at the same time.
I didn' have much luck searching, so if someone could point me in the right direction, I'd sincerely appreciate it.
I didn' have much luck searching, so if someone could point me in the right direction, I'd sincerely appreciate it.
#30
So, a friend and I installed the cats, exhaust, and a BMW air filter yesterday. It was pretty involved. Took about 4 hours, I guess. My buddy is pretty familiar with these cars, and I was greatful that he was able to do this with me. I don't think I would try to tackle this on my own.
The car is absolutely transformed! Sound was good before, if a bit quiet. Now, this thing sounds AMAZING. I highly recommend the Soul cats, and the Akrapovic exhaust is a work of art. With valves closed, the car is nearly as quiet as stock, but it does get a little loud at around 2200-2500 rpm or so when under load. This is more pronounced with the valves opened. The sound, in loud mode is absolutely killer. Even at idle, in sport mode, the car sounds pretty awesome. More spool sound, some slight whistle from the turbo. I'm not sure if the bmc filter is contributing to this, or not, but I am super happy.
Regarding performance, the car does seem to spool quicker and maybe picked up some throttle response. If it's making more power, the gains are pretty mild, but I don't notice any drawbacks to this mod, aside from the cost. Along with the 14 or 15 lbs the new setup saves, my wallet is lighter too, so I should be faster, right?
The car is absolutely transformed! Sound was good before, if a bit quiet. Now, this thing sounds AMAZING. I highly recommend the Soul cats, and the Akrapovic exhaust is a work of art. With valves closed, the car is nearly as quiet as stock, but it does get a little loud at around 2200-2500 rpm or so when under load. This is more pronounced with the valves opened. The sound, in loud mode is absolutely killer. Even at idle, in sport mode, the car sounds pretty awesome. More spool sound, some slight whistle from the turbo. I'm not sure if the bmc filter is contributing to this, or not, but I am super happy.
Regarding performance, the car does seem to spool quicker and maybe picked up some throttle response. If it's making more power, the gains are pretty mild, but I don't notice any drawbacks to this mod, aside from the cost. Along with the 14 or 15 lbs the new setup saves, my wallet is lighter too, so I should be faster, right?