does anyone know the diamiter of stock midpipes? im thinking of cutting out the cats and welding in my cats from the slp midpipe i have cause i want the deep sound i had when i had the stock h on..thanks

EDIT: also...does it matter what spot i put the cats in? like can i put the highflow cats where the first set of cats are on the stock mid or do i have to put them where the 2nd set of cats are? if this is a confusing question ill get a pic of what im asking

 

They are 2 1/4 and are you crazy??

I would just sell the X pipe and buy a Prochamber.

 

i dont wanna spend any more money than i already have for an exhaust...and if i did it would be for longtubes and shorty h. besides...it gives me a reason to "bond" w/ my g/f's dad saying were both car guys and he is a welder so i dont have to worry about paying an exhaust shop

and to answer your question, yes im crazy..haha

 

it's not going to sound any better and you'll have created a hack-job redneck special. Despite my handle I never approve of arkansas engineering. If you just find some jackazz with an offroad pipe for sale in yoru area for 100 bucks or so then you can have him weld in your cats (or not) and be actually doing something acceptable.

 

what do you mean its not gonna sound any better? shouldnt it sound deeper?

 

not really. you may get a tad of note change but if you stick with 2.25" pipes then the tuning frequency hasn't been changed and it'll normalize back to just about exactly where it was. Tube size has a LOT to do with the final sound. Apart from that, you'd have a light-off cat sitting in front of a high-flow cat which is kind of like putting a funnel in the back of a fire hose. You've left the single biggest restriction point in the stream so the air has already been substantially cooled and slowed down which means there's little opportunity to adjust it down stream for any kind of different sound quality unless you change the mufflers.

In short, it'll sound stock or close thereto, it'll look like a redneck hack job, and it'll probably end up with clogged high-flow cats as they're not really intended to have a light off cat in front of them taking away heat and velocity.

Remember folks, exhaust systems are like sound suppressors on firearms. They have exactly three purposes, slow down the exhaust gas, cool down the exhaust gas and in doing the first 2, to end with a sound frequency and pressure level that is least annoying to the user given the use case.

 

i thought when i meant cutting off the cats it mean all the cats..

what im trying to accomplish is taking off the first set of cats and welding in straight pipes, then cutting off the 2nd set of cats and welding in the highflow cats in place of them....

but i guess that ill just have to get an o/r pipe h and weld it in? also my other ? hasnt been answerd...does it matter if i put the cat on the downward tube or the tubing parallel to the floor pan?

 

ahh.. misunderstood your plan. In any case keeping the stock pipe size won't really do anything to help the sound so yeah, the off road cut and weld job would be a good cheap route.

it would be best to keep it down just after the bend that takes it paralell to the ground. sometimes that can cause the rear o2's to have a little coniption but it's the standard location for single high flows. There's not a lot of space up higher on the pipe either and high flows are usually a bit bigger than stockers so down after that bend is kinda where there's the most room.

 

ooo ok..sounds good...ill see what happens after x-mas and see if the funds will handle the longtubes