Peter_GT4

Sports headers, stock PSE. As stated before, everything from mild to wild is possible without any annoying side aspects. This is as good as it can possibly get, not just amazing sound at WOT, but also amazing versatility. Cruising in silence is possible, even though the video might suggest else



Peter

James88

Your video link doesn't work.

sunnyr

^

usctrojanGT3

Awesome, thanks for posting the videos. This was exactly what I was looking for....somewhat similar sound when cruising around town and race car sound at the track and when on it. Can't wait to get mine installed.

Peter_GT4

thanks for getting this straight

Peter

krell

Race headers are at Swain for coating right now. Should have them by Labor day.

Alex@PE

johnsopa

I didn't want to wait for Swain. I'm running the headers now and will send them to Swain during the winter.

I'm going to get some more video/audio this weekend -- especially comparing my Spyder (with stock headers/exhaust) to the GT4 (CG race headers, stock exhaust).

Mandaguy

I now have CG sport headers on, along with IPD plenum (and throttle body) and Cobb tune. I'm not yet ready to comment on performance gains as I believe it take 200-300 miles for the tune to fully adapt - but so far, so good!

Based upon my one-day driving experience, my perception of total sound volume change from inside the car is that that it increased only slightly, maybe 10-15% greater depending on throttle position. The tone is a bit richer/deeper and hearing the intake suck from my left ear is amusing and pretty cool (also put on a higher flowing air filter kit).

Peter_GT4

Same setup on my GT4, still great .

I also noticed a drop in fuel consumption, around 10 to 15%.

Sound volume changes just a little bit when cruising around
which is good, a whole lot more with revs up to 5K and totally
insane @ WOT. I also noticed that the difference beetween PSE
on and off is much bigger.

Best of both worlds, what more could one ask.

You will notice a finished adaption after 150 miles or so.
Most noticeable is a much more agressive downshift throttle
and a sharper and crisper feeling overall.

Right from the start, I was also suprised that the hopped-up
engine actually runs cleaner in some way than OEM.

Overall, I´m really impressed how well the whole package is
working. Compared to stock GT4, I gained one second from
100 to 200km/h, which is quite impressive I think and proof
that a 35hp gain or so ist realistic.

I also found the gear ratios no more that long as before,
even though still ab bit too long.

Peter

Jimmy-D

^UHHHGGGGG - I am still waiting for the back ordered plenum. This is starting to """" me off. I want to get the Plenum/TB on with the FVD Tune. I have noticed a big differnce with the LT Sport Headers and valveless exhaust but need to complete my package

Gilou Panizzi

I'm really tempted in sport headers purchase. Specially for the gain at low RPM ... Are all your Porsche dealers ok with that concerning the warranty? That's the only point which could stop me .

jmartpr

Mine is OK as long as I have cats....

Gilou Panizzi

that's an argument eh!

Vintage72

Any dealer could attempt to not warrant an issue they believed to be caused by or contributed to by aftermarket products on your cars - especially any engine issues when headers are installed. It will be a case by case and dealer by dealer basis. In addition PNA/Corporate may have a say about it. That being said - race headers all of the way!