I just bought a 2001 3/4 ton quad cab 4x4 with a 5 spd tranny, the engine is bone stock, I am planning on starting with an exhuast, and a quadzilla. Should I start with one and add the other later or save my money and put both on at once? What size exhaust 4" or 5"?

 

I would go with a 5" exhaust first and then do the quadzilla after

 

Will a 5" fit under a 4x4? how much diff is there in sound?

 

yup it will fit, my boss has a full 5" system on his '06 4x4 DRW 3500 with lots o space left over and i personally like the sound of a 5" better, its a little....deeper i guess you could say, it would be nice if you could sit in trucks that have the different exhausts just to see what you like the sound of and what you can live with towing down the road...

 

louder is better. I checked with my exhaust guy and he told me $750 for 5" and $450 for 4" does that sound about right?

 

Here you go.
http://store.dieseltruckresource.com/al5exsy19dod.html

 

^^^^thats a good price for a 5" system

 

Only buy 5" if you want tad bit more sound, or if you plan to go over 600 HP, 4" sounds great! Breathe's great!!, And Costs Less.

 

thanks, anyone know much about the quadzilla xzillaraider? I want as much power as I can get with my stock 5spd, trans mods will come later but for now Im a student with a budget.

 

I run one. It's ok but there's likely better options out there. I have returned two of them for throwing codes. The 140hp box I have now caused a CEL on the 60 hp setting while towing two days ago.

 

FWIW- The stock exhaust will cool 400 hp +/- I would go with the fueling mods and gauges first.

 

Yes, but the bigger exhaust wakes up the motor and it will rev up noticeably faster. Also, you can get more air flow and lower egt's with your stock turbo if you open up your exhaust system. Without exhaust, any High Performance Fueling and Timing Box will get hot quick! I would recommend a Juice/Att if you don't yet have gauges.

 

hi , i have a 95 12 valve. i just put an afe filter and a boos tfitting on my truck.seems to have gained 3 mpg.ialso just put a 4 in. exhaust.i still have not milage tested it yet .i was wondering what to expwct. i have noticed more power thru out thr rev range.i also had no muffler before now a straight thru 4 in.much nicer.

 

If you had a 3" straight pipe before, and all that you did was filter and wastgate, and you already noticed 3mpg, I would say that you will not get much better economy wise, but you will spool turbo a little faster and run out of RPM's sooner. Untill you grind that fuel plate, you're not gonna benefit much going 3" to 4".