Quote:
Originally Posted by 0396
Haycait911, congrats on your interesting build. I sent you a pm on your air horns...but maybe it got misrouted. Thus I figured this posting, here are my questions: anticipated increase with these enlarged air horns and based on efficiency, where can one source a set?
Thanks for your time.
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I made these up. used some spun aluminum stacks I found on ebay and the bottoms are cut down regular weber stacks. friction fit together with a little epoxy for good luck.
power increase? no idea, if any. but they're pretty cool
http://forums.pelicanparts.com/porsche-911-technical-forum/576675-made-my-own-bell-end-velocity-stacks.html