When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Without discussing the merits, or lack thereof, of the horsepower claims of various exhaust manufacturers/suppliers ('they don't sell exhaust systems, they sell hope'), permit me to address what I believe to be the best combination (cost considerations notwithstanding) of materials for a 911 exhaust system that maintains valve system functionality. To begin with, for headers (manifolds), I would use thin wall Inconel as, given its heat tolerance, it will yield the lightest header with the greatest longevity. Further, if one is truly serious about combatting radiating heat, I would wrap the Inconel header with Hakotherm 1200 fiber wool, covered with stainless steel foil, 0.15mm thick (ideally, even though titanium is a better insulator than Inconel or steel, if serious about the heat issue, I would also wrap titanium or steel headers). I would make the muffler(s) from titanium (how light an alloy depends on how long you want it to last given titanium's relatively low oxidation temperature ). The pipes between the headers and the muffler(s) would also be made from thin wall Inconel as valves are not available in titanium. Finally, I would make all clamps from titanium.
The beginning of the manufacture (after a long period of evaluating, scanning, designing, costing, etc.) of a header for
my ideal exhaust system for my own car - Inconel 625 Header with "printed" flanges.
Has anyone tried Soul Performance? If ever, how was it?
Soul is great to deal with and there products are very well built. If you are looking for side deletes or center delete they are THE company to deal with. I had there side deletes and was very happy with them.
I put fabspeed full length non catted headers on with their side valve deletes first, then added the header later. I also have no CEL issues and make more power, sound amazing and have been on for 5000 + miles. If I had to get a catted system, it would be dundon. Because i had the side deletes, it made sense to get the fabspeed header, and I have been extremely satified with everything. I hear peopel say "these are great" or "go with this" Its a moot point to argue side deletes and center deletes unless you argue sound only. they really dont add much, if any, performace value.
im running the jcr inconel racing headers and their full titanium racing pipe and they're all coated in swaintech's white lightning. love the sound except it's kinda raspy but im going to get the bolts tightened up and see if that fixes that.
Without discussing the merits, or lack thereof, of the horsepower claims of various exhaust manufacturers/suppliers ('they don't sell exhaust systems, they sell hope'), permit me to address what I believe to be the best combination (cost considerations notwithstanding) of materials for a 911 exhaust system that maintains valve system functionality. To begin with, for headers (manifolds), I would use thin wall Inconel as, given its heat tolerance, it will yield the lightest header with the greatest longevity. Further, if one is truly serious about combatting radiating heat, I would wrap the Inconel header with Hakotherm 1200 fiber wool, covered with stainless steel foil, 0.15mm thick (ideally, even though titanium is a better insulator than Inconel or steel, if serious about the heat issue, I would also wrap titanium or steel headers). I would make the muffler(s) from titanium (how light an alloy depends on how long you want it to last given titanium's relatively low oxidation temperature ). The pipes between the headers and the muffler(s) would also be made from thin wall Inconel as valves are not available in titanium. Finally, I would make all clamps from titanium.
It sounds like the wrap you mention is very similar to what headershield offers.
Their pricing is exorbitant for what it is, and I'd rather DIY. Do you have a recommendation on where to buy rolls of both the hakotherm and SS foil? Any recommendation on the best method for securing to the headers?
02-02-2020, 09:29 AM
