Exahust again !!!!! lol

[oakcharger]

OK... this is the 3rd time now, what i want is to get my torque back up outta this 3.5. ok i know getting a 6.1 will fix my issue... Now i got a Stock RT system on the car X pipe and suitcase with no resos, can i increase the back pressure if i replace the suitcase with 2 mufflers ? and maybe some magnaflow resos ? PS... this is the last time i want to do this LOL....

THanks to everyone in advance for the input...

[higshemi-less]

In short no, I don't think so. The magnaflows will be a touch more freeflowing than the suitcase.

[oakcharger]

yeah thats what i thought. Might need to find like 2 3 chamber mufflers to pump the back pressure up a bit. Just stumbled on his read... Mustang forum.

"The best way to describe a V6 exhaust is as a bottleneck: gases leave your engine through the two manifolds but get slowed down after the catalytic converters, where they are forced through a single pipe to pass through the muffler and out the tailpipe. It's not hard to see why the V6 exhaust set-up restricts air flow and limits power. Converting to a dual exhaust will open up the air flow, increase your horsepower, improve your gas mileage, and give you a deeper, throatier sound.

It has been said that there are two ways to convert your V6 exhaust: the right way and the wrong way. While we agree that there is the easy way and the hard way, we think it is better to give you all the information and let you decide what is right for your V6. That being said, there are a couple of ways you can convert your V6 to a dual exhaust.

Use a Dual Exhaust Adapter Kit
Using a dual exhaust adapter kit requires cutting your Y-Pipe right after the catalytic converters and welding the adapter into place. The adapter acts as a splitter, allowing you to bolt any GT catback for your year Mustang right up to it, giving you the look of a true dual exhaust.

The downside to this is that using this kit does not actually give you a true dual exhaust. It gives you the look and sound of a GT exhaust, but you will only see minor performance gains.

Use a V6 H- or X-Pipe
The second option is to use a V6-specific mid-pipe. Designed to eliminate the single-pipe design of the factory Y-Pipe, these bolt right up to the factory manifolds and give you a true dual exhaust. With this option, you can use any GT catback for your year Mustang.

Because this conversion gives you a true dual exhaust, you will have noticeable performance gains. You car will be able to support more horsepower, though how much of a horsepower gain you will see depends on whether you keep your cats or go for an off-road set-up.

Of the two options, this is the easiest. There is no precision cutting or welding, and it can be done by anyone with basic tools and knowledge.

Other Recommendations

If you have a stock V6, there are a few things we recommend to keep you from losing low-end torque and having a sluggish car.

Get a mid-pipe with catalytic converters. True, you won't see as much of a horsepower gain but, using a mid-pipe with cats creates enough backpressure to keep your low-end torque drivable.


Use a Chambered Muffler (such as Magnaflow, Steeda, Pypes), instead of a straight-through muffler.
Note: If you really want to use an off-road mid-pipe on a stock car, switch to steeper gears (4.10s or higher). This will get you into your power band faster, and the low-end torque difference will be less noticeable.

If your V6 has forced induction or nitrous, it is okay to use a straight-through muffler and an off-road mid-pipe."

[oakcharger]

ok..... I think i got a plan... All magnaflow so no chambered mufflers.. going to keep the stock RT X pipe to 1 Magnaflow 14256 and a Magnaflow 14263 then out to the rear to 2 Magnaflow 14362's and have the current tips welded to the 14362's at the rear.... 4 muffler system should give a really nice sound and might pump up back presure abit... Good idea ? bad idea ??? lol

On a side note was thinking about flowmaster 40's in the Center and some resos at the rear.. really like the magnaflow sound, not a fan of the mustang sound on a mopar....