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5/16” flange, 16ga primaries, 2 1/4" 16ga reducers included, excellent spark plug access. 1 5/8 Primary, 5" Long x 3" dia collector. Crate Motor USRA Legal Buy Elbows and Turnouts Elbows: Left side SCH2242L (42 degrees 2 1/4") Right Side SCH2245R...

5/16” flange, 16ga primaries, 2" 16ga reducers included, excellent spark plug access. 1 5/8 Primary, 5" Long x 3" dia collector. IMCA Legal Elbows and Turnouts: Elbows: Left Side SCH2042L (2" dia 42 degrees). Right Side SCH2045R (2" 45 degrees) Turnouts:...

No clearance issues with oil filter, spark plugs, starter, kick out oil pan, rear mounts, valve cover. Clears firewall that is minimum 7" from back of block. 1 5/8 Primary. 8" long x 3" Dia collector.

Fits MB Custom, Xtreme, Mullens. 4 into 2 into 1 Tri-Y Design. 1 3/4 - 1 7/8 Primary. 3 1/2" Collector - NO PAINT

Fits Rage, 23" out to inside of collector (Left side). 1 5/8 - 1 3/4 - 1 7/8 Primary, 3" Collector - 8" Collector Length. Crate Motor

Fits Rage, 23" out to inside of collector (Left side). 1 5/8 Primary, 3" Collector - 8" Collector Length. Crate Motor