phefner

Thanks! No instructor, just me making commentary and enjoying the roar. Through the kink section there is a TON of reverb so it gets really loud. Very fortunate to have Road America less than 2 hours away.

Going back in a couple of weeks so will be trying to get better interior, and working on an external mic solution to really capture the bark under load with minimal wind.

Cheers.

dnimi123

Thanks for sharing. The OAP alone gives more volume at low and midrange RPM. It seems thought at WOT and high RPM the sound reverts to the original OEM. I like the Akra system for its deeper tone and great quality. I went with the Kline Inconel system for the exotic material and higher pitch. Overall, any change to the exhaust cant go wrong! Must be nice to get out on the track!

Goodwood

Heehee, for some reason I thought you had a remote coach! Does anyone ever do that?

phefner

@Goodwood Not that crazy of a thought. Last year we were doing lead-follows and using cell phone connections to communicate. Did that for 2 days before I was cleared to solo Road America.

Cheers!

Goodwood

Facetime for HPDE drivers, with your audio piped through your car speakers! Better yet, BT'd into your helmet! Honestly, that's what I thought your cell phone was there for!

enduro

OG released a vid with Dundon headers + Soul Performance back section yesterday.

Assuming the site imbedding kills the start time, noise starts at 40:00. Some header pr0n in the first few mins.

frosty911

That sounds sick in a good way.

of course you’re looking at about 13 k total for the exhaust.

around 9k for the dundon street headers and 4k for the soul rear.

Not in my price range but it does sound crazy good.

waiting for the full sound clip video, I hope…

CDinSing

Here is a much shorter video of few quick drive bys of KBS911 Cargraphic headers, OA pipe and stock muffler. These were not professionally done just a few friends using a hand held go pro on a Saturday drive. To me, without the cat and the using open pipe section of the OEM muffler the Cargraphic sounds deeper and throatier than the Dundon. Cats typically add $2k to a system cost that does give some justifiable cost difference between them. OEM muffler gives a very quiet valve closed option which I like for around town driving. I will consider this on the Spyder whenever it does arrive. 🤦‍♂️

incursion

enduro

Interesting data point. Doesn't quite rise to the level of what they did for the e90M which is IMO one of the most ridiculous aftermarket exhausts made (I've experienced it first hand). If it did... it'd be at the front of my list.

JonathanWalker

JCR Race Manifolds and Valved Silenced Race Pipe

incursion

Just found this one: