danman_s

Based on my experiences, I've found that alot of aftermarket exhausts are nicer than the OEM systems. Most aftermarket exhausts are 304 stainless which is a higher grade than 409 used in OEM systems (not really appreciable from a automotive perspective, but I work with alot of stainless at my job). As well, alot of OEM systems have significant area reductions throughout their length; you'll see elbows that weren't mandrel bent, crushed sections for proper clearance, etc, etc. The mufflers as well are typically a cause of significant pressure losses in the system.

Typically with a good aftermarket system, you have constant diameter mandrel bent fittings, everything is nicely tig welded and low pressure drop mufflers (Corsa).

I'm a big fan of Corsa exhausts....but I usually combine them with catless longtube headers for that extra bark to wake up the neighbours in the morning.

Bowers816

Ya Know.? It's a good thing not everyone thinks like u or we would all have some boring vehicles. Also I drive a 2004 so the exhaust is not "new". I'm sorry it doesn't impress you ("not really"). With a user name "Tacoma" I'm wondering if that might just might be what u drive. Yes everyone has an opinion but I believe if your going to be negative then keep it on your own Thread.!

"Just Saying"

08screwxlt

Well put nobody likes a Nancy

TheKing1985

Unless Nancy has big Yobbos.

Tacoma

Thats why I NEVER buy used vehicles,,, cause YOU worked on it! YOU touched it! When looking at any used vehicle the thing that scares me away is when the seller says: "I worked on it myself" agggghhhh!!! If you want a new truck with a loud exhaust buy a Nissan Titan,,, I say buy it new with all the accessories you want then don't touch it... The stock exhaust is seamless, welded from front to rear so there's no chance of exhaust leaks so you don't die of C02,,, the outlet of the pipe is carefully designed with the normal bottom air dam flow so the exhaust fumes won't back up and choke you sitting in the cab,,, so when you change the design and have the tailpipe exit out of the side forward of the rear wheel, those exhaust fumes could flow right into your cab,,,, I am a true believer there's a reason for everything,, and you have to know the reason WHY before you change that reason,,,, and YOU guys have NO clue! So you're saying you are smarter than the design engineer that designed that exhaust system?

Note: isn't there anybody here that can agree with me and back me up?

Hogan

1. Most of us here don't stop modding our trucks just because some fellow down the road might not want to buy it that way.
2. The stock exhaust was made to be quiet. It also wasn't designed with performance as the main priority. I'm sure a true dual setup from the factory would be a pricey option.
3. I wouldn't be caught driving a Nissan truck. Ford makes the best trucks, I see 80 percent of the trucks in the oil sands are Fords.
4. No where did we state we were smarter than the original designer. I bet he's a smart guy. He did have certain requirements to meet I'm sure regarding to sound and emissions though.
5. I highly doubt having a tailpipe exit in front of your rear wheel will harm you. I have yet to see a lightning owner have that problem.



thats just my .02

Tacoma

ok,,, allow me to explain this in depth,,, when you're driving your truck down the road at 60 mph the way the air flows over the cab and bed it creates a lower air pressure (a vacuum) behind it that sucks the air behind the truck (sucks like a vacuum) to the area were the rear of the cab meets the front of the bed and IF where the exhaust exits the truck is caught up into that lower air pressure it will move to an area of higher pressure such as inside your cab,,, the tail pipe exit is on an angle and at a carefull place or postion so the exhaust gasses are not effected or get caught up into that lower air pressure or vacuum,,, mostly its designed with the air flow that flows under the truck,,,,NOT ABOVE the truck,, an air dam thats postioned below the front bumper was installed there for a perpose,,, it controls the air flow UNDER the truck so that the exhaust fumes exit the truck properly,,, BUT when you CHANGE the location of where the tail pipe exits the truck it could and WILL get caught up with the side and TOP air flow of the truck and those dangerous fumes could find their way into your cab,,, say you have a rear slidding window thats open... get it?

I can PROVE that your truck creates a vacuum,,, you have an open truck bed covered with an inch of snow,,, open the tailgate and take it for a ride at higher speeds thinking that snow will blow out the back... but watch in the rear veiw mirror, what happens is that snow blows around in your bed, only a little bit will blow out, but the majority of the snow will swrill around to the front of the bed covering the rear window,,, the faster you go, the more of the snow will pile up to the front of your bed,,, the same thing is happening to the exhaust gasses IF you have the tail pipe in a wrong postion (even with the snow that blows out behind the open tailgate will be sucked back in from the vacuum your truck creates behind it) I am just trying to save you guys from breathing in C02,,, please think about it and a little common sence will steer you the right way.

Tacoma

I really enjoy this forum,,,, please don't throw me out.
I understand nobody likes any person more intelligent than them, makes them look stupid,,, that is not my intension and I appoligize if i offened anybody,, but you have to understand its tough to dumb down my comments so people could understand it and sometimes I get fustrated when I make it sooo simple and you still don't understand and I may of say something thats insulting,, if I did I never did mean it in an insulting way,,, more I am mad at myself for failing to make you understand, I blame myself for not explaining it the right way.
Thank You

SJP

I'm not going to back you up on this subject because IMO you sound like a troll. But since you sound so highly intelligent could you please explain to everyone what's wrong with working on you're on truck? If I can work on my truck and save a few bucks I will but since I'm not a ASE certified ford mechanic I must be dumb.

I bet you're the type of person that goes to the dealership and makes and appointment to have you're wiper blades changed, aren't you?

Turboglimk4

i have had an exhaust on every vehicle i have owned. and i have ran open down pipe on a with electronic dumps. im still here im not dead from deadly gasses. i drove my old dodge ( dont kill me ) with an exit in front of the rear tire i drove that truck to Maine and back from nj 10 ( soooo a 20 hour trip ) hours windows open and closed. the engineer that designed the trucks had dot specs to meet and emission specs to meat and sound specs to meet. hence why our trucks are so quiet. for the millions of trucks on the road with exhaust and stacks and everything else people do to their exhaust systems. When is the last time anyone has heard of someone dieing cause of the exhaust gasses coming back in to the cab 1 in a million i will take my chances and make my truck sound awesome. i do thank you for your concern of my well being.