Got a '91 TBI.

Which is better in terms of performance?

A cut-out

Or a full on cat-back with high flow cat

 

depends on your mods.

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92' camaro
New 305 block TPI conversion, Forged parts all around,Edelbrock intake,ported plennum,ported corvette alluminum heads accel cam,52mm throttle bodie, SLP runners,ford SVO 19lb injectors,fuel regulator,cloys timing chain, comp alluminum roller rocker arms and pushrods msd 8.5 mm wires hypertech coil and plug, Edelbrock TES headers, free flowing catalytic converter and a 3 ich force II flowmaster exhaust system.
Soon to come!!!
Procharger system 12lbs o boost.
Favorite quote: "where ever u go, there u are"