Jed is indeed the architect and brains behind these. Yes, they are expensive.

Find me a guy with a 4.6is who wouldn't love to drop these in and Sa-moke a 4.8is next time they had a chance.

I'm planning on some forced air down the line so opening up the flow on the back end is a real treat.

As far as cramped space, if you took a lunch break to read that whole thing, it's all modular, shouldn't be difficult at all for the e53. One custom weld if you're keeping cats and a steep downward bend for the secondary collector.

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'03 4.6is (the wife' s ride)