Doug’s or tti headers

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I'd be interested in what you've done with the engine and what your goal is. Shorties are marginally better than factory manifolds but long tube headers beat both. I've always been a fan of Doug's with TTIs a very close second. Supertruck makes a good recommendation for the Schumacher Tri-Y's if your engine is on the milder side. (Now the door is open for the velocity vs exhaust gas expansion debate; ready, go!).
 
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