986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - Schnell Headers on 986 with Stock Exhaust

panameras · 08-09-2007, 05:04 AM

and with straight through pipes! http://www.youtube.com/watch?v=M1VI-rTaUmU

"Stock 03 muffler, but with RPM activated dump valves (almost like turbo wastegates) BEFORE the muffler section, that begin to open at say, 3500 RPM, and are fully open by say, 4500 RPM. With this design you have a perfectly quiet car for normal driving and cruising, with no resonance issues, yet when you get on the power, as the RPMs rise and you get into the meat of the power curve, you get a very free flowing exhaust, that will sound glorious as well.

Anyone else think this could hold some promise? I have a very qualified shop here that could do the work on designing a system like this, and we could have a prototype I'd be happy to test.

Patrick"

I like that idea very much. A bit like F430s when the cams open up at higher rpm. Not saying it will sound like a ferrari but the sudden "explosion" of exhaust note of a flat six should still be as sexy.

08-09-2007, 05:04 AM	#2
panameras Registered User Join Date: Jul 2007 Location: Sydney Posts: 150	and with straight through pipes! http://www.youtube.com/watch?v=M1VI-rTaUmU "Stock 03 muffler, but with RPM activated dump valves (almost like turbo wastegates) BEFORE the muffler section, that begin to open at say, 3500 RPM, and are fully open by say, 4500 RPM. With this design you have a perfectly quiet car for normal driving and cruising, with no resonance issues, yet when you get on the power, as the RPMs rise and you get into the meat of the power curve, you get a very free flowing exhaust, that will sound glorious as well. Anyone else think this could hold some promise? I have a very qualified shop here that could do the work on designing a system like this, and we could have a prototype I'd be happy to test. Patrick" I like that idea very much. A bit like F430s when the cams open up at higher rpm. Not saying it will sound like a ferrari but the sudden "explosion" of exhaust note of a flat six should still be as sexy. Last edited by panameras; 08-09-2007 at 05:08 AM.