Exo

For those of you who are contemplating an OAP and need a little extra confidence...

I have been living with my Akra OAP for about 1,500 miles now in my Boxster GTS, and the experience is nothing short of amazing! I did not install a valve controller, but I actually enjoy it this way (for now... ). It is nice not having to worry about drone in the low rev range, so I just leave the valves open at all times. With normal factory valve operation, there is no drone... So long as you are in the proper gear and not flooring it in 6th at 2k RPM.
The car absolutely screams at 5k+ RPM and as you approach redline it is one of the most glorious sounding cars I have ever experienced. Downshifts sound amazing...

The car certainly got louder (obviously)... But the car just feels and sounds like it is breathing now. The way it should have been from the factory.

If you are on the fence, just do it! I wish I did it sooner...

tigerhonaker

Exo,

I have the SOUL Ceramic Coated OAP, Rear Valved Muffler, Symposer Delete and the Cargraphics vale controller.

At now plus 7,000 miles and over 1-year of driving.

I can say without any doubt my GT4 with the 7-Speed PDK is a Hell Raiser and at Wide-Open-Throttle sounds like a GT3.

Terry

Jay9722

Akra OAP and valves held open with clamps. Makes a world of difference since I did it.

850tgul

Can’t deny OAP are basically a requirement for this platform and may very well be enough for most folks but, for me, I also needed a back box to change the tone from the “dual 3-cylinder” sound to a screaming GT3 like banshee. OAP alone increases the volume, for sure, but doesn’t really change the tone.

Exo

What back box do you have?

850tgul

Cargraphic race back box paired with Akra OAP and Cargraphic valve controller. Love it.

Exo

Beauitful… I’m sure it sounds glorious.

As much as I’d love a setup like that, I worry it may attract some unwanted attention in CA. Law enforcement is all over aftermarket exhausts around here….
My Akra OAP looks OEM 😉

FazedChicken

My exact setup when I get my car this summer. Have all the parts ready to go.

skafia

Just do it.

glennstu

I replaced this box of rocks with the Soul non-resonated race exhaust. A noticeable performance boost and it sounds amazing! Just need to keep the garage door down when I start it

Meraki Autoworks

Yup Soul OAP is our best seller for the GT4 and its definitely worth it to most people!

-Josh

Hex

Akrapovic's web site says remapping the ecu is mandatory on the GT4RS when using their oap. Did you remap your car?

bolodah

Got the Flat6 OAP's installed today and they sound great. I've only seen a few threads about Boxster GTS's getting aftermarket OAP's, so I was on the fence about getting them. The car is slightly louder than with the factory OAP's, but I'm still able to easily carry on a conversation with the new OAP's. The sound is definitely louder and higher toned in the upper RPM's. Letting off the gas from higher RPM's, you hear a metallic sound from the exhaust, whereas before, there was no such sound. This is a great modification if you want to hear more exhaust when you get on it.

BoxKing

Now grab a VC, or do the collar mod and enjoy the full range of the exhaust notes from ZERO on up, you will be a happy camper.
Glad to hear you’re enjoying the new setup!

Unstock

Wish Kline would sell just the OAP so I could get the back exhaust later.