CRex

So we've all seen Estre's hot laps at the June 1 Nordschleife track day. The exhaust tips on his RY .2 RS seemed funny from a distance, and I initially thought he had a cup muffler for longevity... then someone caught this closeup shot:



And this is how it looks up close:



I'd hazard to guess Manthey sell these things (just like they do the MR kit for the .1 RS)... could be useful for folks running Laguna!

Source vid @ 9:32 in

here

ralphmusic

TRAKCAR

juanpablo046

Mech33

SCCAForums

Here's a setup I made, using a replacement center tip section, and then bolting on 2 3 1'2" Baffled 90's... I swap it with the OEM center tail pipe only on the Noise restricted tracks, simple 3 bolt swap.

CRex

I've cracked enough mufflers and muffler mounts that I'm thinking it makes sense to not add weight at the tips... the Manthey approach seems to make a lot of sense but the flow properties may be an issue...

stujelly

So how quite is that exhaust. I have a 92 db coming up at laguna

SCCAForums

I'm not sure, It passed a 94DB requirement at our track. But distances to the meter can vary. I know that the 'oem' setup is 98DB, My guess is this knocks off 8DB (or so) due to the ability to direct the exhaust 'away' from the meter, as well as a slight baffle inside. PM me, if you'd like to borrow them, happy to ship them to you and have you ship back after you event before you buy your own setup. I don't have any DB limiting tracks coming up for quite a few months now.

Yeah, I don't have experience with any cracked mufflers, but I only install the tips at the track and then remove them after... so the amount of 'running time' is probably 30 to 40 minutes a day maximum, and only at the one track requiring DB limits... so 99% of my muffler is running with the OEM tips.

Best Regards,
Dave

Mech33

SCCAForums

Got them from SummitRacing, here's everything I ordered. Only exception, was a 'put two slits' in the turn downs to allow them to 'crimp/expand' as necessary:
https://www.summitracing.com/parts/dtc-780-01200

Replacement Exhaust Tailpipe from eBay: (If I had to do it over, I'd just buy a 'used one' off ebay instead)
http://www.ebay.com/itm/Porsche-991-...item5686eb812a

And then qty 2, 3 1/2" Band Clamps (sorry don't have the exact link)
Torca AccuSeal Exhaust Band Clamp - 3.5" 430 Stainless Steel

Best Regards,
Dave

Mech33

SCCAForums

Mech33

Joe@Fabspeed

Fabspeed Motorsport has GT3 turndowns that bolt-onto the stock OEM GT3 factory center muffler. This is a simple doityourself installation with no lift required.
pictures on our website systems in stock. You will not loose any power with 90 degree turndowns. You will lose a signficant amount of power with exhaust disks and tips welded shut with holes cut underneath.