1.) blow up causing you to spend 5k$ to put a built motor in her
2.) catch fire while you are out driving causing you to lose your investment
or
3.) get really dirty like a race bred rally car should and it doesnt fuckin matter the weather…
Definitely would be out in either of mine if they were regged and insured. The cat’s bodywork should be done soon so Im puttin it on prolly by later this month can’t wait any longer haha.
I went out yesterday doing some mountain road scouting; The sunny weather is too good to pass up, even if it is still freezing. I can’t wait for April to arrive…
trust me when i say wait til you have a catback to go on with the downpipe. the downpipe helps with spool but feeding it into a stock catback is a true bottleneck…
3" dia, hot gas, PV = nRT, as T drops the other side of the equation needs balance, easier to reduce volume by dropping pipe diameter, keeps pressure and gas velocity constant, helps reduce bacpressure, helps get exhaust away.
Alot of people arque both sides, at one point we made a MatLab flow model that shows the 3" -> 2.25" step to work better, I gotta find that.