October 11, 2011

Ok, so im looking to upgrade my exhaust, as my stock system is starting to rust off. Lol. I need so eone to teach me the fundamentals pf performance exhaust though. Im reading up on it all and im getting all confused. Can anyone help me out?

October 11, 2011

more info please. what size truck, engine, and cost?

October 11, 2011

Real basics of it is that performance exhaust is less restrictive thus the air/exhaust flows easier = better performance.

October 12, 2011

Bob said it. I`ll add anything besides factory is pretty much performance exhaust. Keep your cats on, or at minimum replace them, and a single 3 inch exhaust with/without a nice muffler will do the trick.

October 12, 2011

^^^^^^this^^^^^^^

October 12, 2011

it is a 1994 Chevrolet suburban 1500. 350CUI 5.7L TBI injected engine with a 1" throttle body spacer. ive heard that shorty headers will work better than long tubes on my truck, and why single exhaust? wouldnt dual be better? less restrictive?

October 12, 2011

A local exhaust shop is going to charge less for a single set-up due to less piping and one less muffler and tip. You can run duals if you wanted, but being a big surburban/family hauler, I would reccommend a single 3 or 3.5 (whatever the shop has in stock.) If you run duals either 2.25 or 2.5, 2.25 will be "higher pitch" where as the 2.5inch exhaust will have a much deeper pissed off sound. If duals are done all so be sure an equalizer between the two pipes is done. An X-pipe is best or an H-pipe or one muffler with dual outlets. It just makes the truck sound better at idle and is suppose to be more efficient.

October 12, 2011

Price isnt a problem, as i will be doing most of the work myself. Why only 2.5" if i do duals? Whats wrong with doing 3 on duals? Plus, what is the difference between an x and h pipe? Besides the obvious shape.

October 12, 2011

And if i do run true duals, where the hell do i put my o2 sensor?

October 13, 2011

X-pipes are harder to make if you do it yourself, u can buy a small pre-made x-pipe, where as an h-pipe is easier to do. With a factory engine you aren`t making enough power to really benefit from dual 3 inch exhaust.

Don`t know if you`ve ever heard it before but its all ways been said if you run open headers during cold weather you will crack a valve because the valves will be warm up quicker than the heads. This is true it can eventually crack a vavle and seeing as you live in PA this is probable.

Depending on how far frontwards you are gonna start, this may be different but I`ll start at the manifolds. Connect to the manifolds with 2.5 and Y them together, then you need your cat, after that you should be able to weld a bung in for your o2, then if your using a muffler put it in. To make it easy (if you want dual exhaust) get a single inlet dual outlet muffler and then run the duals out the back or to the side, whatever you prefer.

If you wanna put in dual cats, or none at all, you can get a dual inlet dual outlet muffler. If you do this then an x or h pipe will be useless. Your truck will be more efficient/less greenhouse gases and better mileage if you O2 is after the point where the two sides merge together.

The reason why I`m saying put your O2 after the merge, is if one side is has a bad plug or something along that line, the O2 sensor will help sense that and the computer will begin to correct that a bit.

Keep the questions coming I`m happy to help.


Mark

October 13, 2011

Would there be an advantage to dual cats? I was thinking of replacing the manifolds with headers and going from there. Also, i was thinking on putting electronic exhaust cutouts on the pipe before the cats. Since i do a lot of highway driving, i want a quiet stock exhaust, and when im in town, i want my high flow sport exhaust. Can you point me in the right direction here? Thanks for all your help

November 1, 2011

Ok, so im looking to upgrade my truck performance exhaust, as my stock system is starting to rust off. Lol. I need so eone to teach me the fundamentals pf performance exhaust though. Im reading up on it all and im getting all confused. Can anyone help me out?

hi there are you done with this one? are you buy some manual for it? i think stylintrucks have that one.