Dundon Headers-wow!
04-08-2018, 11:02 PM
#16
Drifting
That's a good idea. After the "no tagalongs if you didn't register" email today I'm a little afraid to. I might be put on probation. But hey... probably worth the risk. 
i'll start a "anybody with the following equipment willing to take me for a ride at Smokies" thread the week of.
i'll start a "anybody with the following equipment willing to take me for a ride at Smokies" thread the week of.
04-08-2018, 11:46 PM
#17
Rennlist Member
Boy it’s been a while since I last posted here.... anyway here is another extremely positive review about DMS headers + 91 tune. Besides the amazing support from Jamie, the headers are great. I have to say that installing them took a while (DIY), it was really hard to figure out a procedure to make them fit crawled underneath my car. But once they go up... my gosh.
Sound: cruising they sound like stock, but with more pops. Step on the throttle and you rip ears off people (j/k) but they get really loud. No drone whatsoever.
Performance: have not dyno’d but the car definitely feels more alive. But beware you need sport mode on to fully appreciate and start WOT from ~ 3k rpm, while before I could have done that from slightly lower rpms. In normal mode, the ECU tends to pull Timing in that case.
Sound: cruising they sound like stock, but with more pops. Step on the throttle and you rip ears off people (j/k) but they get really loud. No drone whatsoever.
Performance: have not dyno’d but the car definitely feels more alive. But beware you need sport mode on to fully appreciate and start WOT from ~ 3k rpm, while before I could have done that from slightly lower rpms. In normal mode, the ECU tends to pull Timing in that case.
04-09-2018, 12:13 AM
#18
Rennlist Member
04-09-2018, 02:57 AM
#20
Three Wheelin'
04-09-2018, 03:01 AM
#21
Three Wheelin'
That's a good idea. After the "no tagalongs if you didn't register" email today I'm a little afraid to. I might be put on probation. But hey... probably worth the risk.
i'll start a "anybody with the following equipment willing to take me for a ride at Smokies" thread the week of.
i'll start a "anybody with the following equipment willing to take me for a ride at Smokies" thread the week of.
04-09-2018, 11:38 AM
#22
Instructor
Thread Starter
Any difference with the Akra exhaust in performance vs. just headers? Is the Akra exhaust catted? Do you have the tune? Thanks.
04-09-2018, 11:48 AM
#23
Three Wheelin'
If anything my my car is just a little louder and maybe slightly better free flowing, but the Akrapovic gains I suspect are negligible. It does sound phenomenal though, and as a Canyon/track car I love it. Not obnoxious as a straight pipe as it does have OEM style baffles that work just like the ones from porsche. The exhaust button is functional too.
i am also running
-IPD Plenum/GT3TB
-BMC filters
-Cobb Dundon tune
-HRE p10 w/ titanium lugs (A bit lighter than oem)
04-09-2018, 11:58 AM
#24
Three Wheelin'
Man I wish there was somebody in the Atlanta area with a Dundon/Cobb setup
In this case, of course, the "something else" is the car's aural signature. Maybe I'll like it, but maybe I'll wish I'd never done it in the first place. An extensive test ride along with somebody would let me answer two questions: 1) is the performance delta enough to make it worth the hassle (Buteo's answer of "used to be slower than my Carrera GTS, now faster that that car" is a great indicator for me because of my experience with my GTS. But Buteo hasn't lined them up and raced, or timed them. So I'd still like to get a ride. And 2) listening to start-up, puttering along, and 3/4 throttle, and WOT would be super instructive.
Anybody?
In this case, of course, the "something else" is the car's aural signature. Maybe I'll like it, but maybe I'll wish I'd never done it in the first place. An extensive test ride along with somebody would let me answer two questions: 1) is the performance delta enough to make it worth the hassle (Buteo's answer of "used to be slower than my Carrera GTS, now faster that that car" is a great indicator for me because of my experience with my GTS. But Buteo hasn't lined them up and raced, or timed them. So I'd still like to get a ride. And 2) listening to start-up, puttering along, and 3/4 throttle, and WOT would be super instructive.
Anybody?
You are more than welcome to come to Denver and check out the GT4, but I think you may be rather disappointed coming from Atlanta. The altitude here kills our naturally aspirated cars. 911.2 GTS often accelerate quicker than Gt3. Same could be said for the 718 GTS and gt4.
04-09-2018, 12:20 PM
#25
Track Day
Join Date: Jan 2018
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Do you have a tune and are you on stock exhaust? Also, do you have any CEL issues?
04-09-2018, 12:58 PM
#26
Since it doesn't look like I'll be getting a .2 GT3 allocation, I was considering going this route on the GT4.
Anyone in the Chicago area running this setup for me to checkout?
Anyone in the Chicago area running this setup for me to checkout?
04-09-2018, 01:16 PM
#27
Instructor
Thread Starter
04-09-2018, 01:33 PM
#29
Addict
Rennlist Member
Rennlist Member
04-09-2018, 01:36 PM
#30
Rennlist Member
I ran my Dundon headers without a tune on track, around town, highway and at the Smokies. No CEL. Of course adding their tune doesn't result in a CEL either. A bigger smile, yes.
With the addition of TPC's toe links and DSC the car is a great package.
I don't regret passing on my .2GT3 allocation.
With the addition of TPC's toe links and DSC the car is a great package.
I don't regret passing on my .2GT3 allocation.