NewEdgeStang00

Quick and probably easy question, I tried researching on Google but it was hit and miss and not many direct answers since most combos also included midpipe changes. But the question is - if I install just a catback 2.5" system (stock midpipe and up) will I lose low end torque?

I read that higher exhaust gas velocity increases low end torque, but increase in pipe diameter = decrease in exhaust gas velocity.

I would think hooking a catback up to the stock H-pipe wouldn't be a problem, but if the stock exhaust provides a better low end torque then I'm going to keep it that way.

cliffyk

The stock exhaust is only a bit undersized, upgrading to 2-1/2" from the manifold back will not hurt low-end torque at all, and will extend the powerband at the high-end--it's not as though you were moving to a 3"+ pipe.

That said, installing just a catback will do very little for anything except making your wallet a bit lighter. A chain is only as string as it's weakest link, and in this case the stock dual-converter H-pipe would still be that weak link.

NewEdgeStang00

Thanks cliff, I was looking at the catback for just improving sound. I know it will do very little performance wise. I wanted something to make the exhaust a little more noticeable.