Ideal Total Exhaust System

[o' dannyboy]

I'm wondering if anyone can advise on the ideal, most intelligent, total exhaust system for a '93 XLT. I'm looking for the best performance, gas mileage and lowest sound (o.k., maybe a tiny bit of growl). The truck is stock and for the road, rarely off road. I am considering a complete Borla system, headers and all the way back. I'm wondering if this is a good idea and what other mods would be necessary if this system is installed. I'm also wondering about configuration; single exhaust or dual. I'm looking to keep this thing as low profile as possible (nothing flashy) and actualize the best possible performance. Any advice will be very greatly appreciated!

 

['97 V8]

Borla makes nice kits, but i dont know if they have anyhting for first gens. However i can give you specs. For the piping from your headers use 2.5" pipes, then you can get a set of high flow cats. Your choice of muffler, bieng a flowmaster 70 series, you can have a choice of dual out or single out set up, but for the V6, i would recommend single out, then go through some more 2.5" piping, then exit out a 3" tip. In my opinion, this will give you a better flowing exhuast, less back pressure ( too little back pressure is bad) and better milage. I do suggest you get an intake.

 

[Jason94sport]

On the 4.0L OHV engine, headers are a waste. Little power gain for the price & hassle of installation. Install is a big deal on an X.

No more then a single 2.5" pipe from the cat to the tail pipe.

You should look into the Flowmaster Force II cat back. Has everything you need, & is sized correctly.

Open the pipe bigger & your will loose too much back pressure & loose power.

Bigger pipe should only be run if you have a super charger or a turbo.