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Discussion Starter #1
Hey all,

Had to do some work for an old client and now have some $$ for long awaited exhaust/intake mods. I am thinking of the Magnaflow cat-back single side exhaust using the stock y-pipe. Also thinking of pairing it with the AEM brute force CAI.

A local muffler shop will do either the exhaust kit (magnaflow 15848), or the muffler & aluminized pipes with polished SS tip for much cheaper than the all stainless kit.

So my questions are:

1. What are your opinions on the above combination for sound (I do not want much louder than stock) and performance?

2. Are the aluminized pipes OK to save money or should I bite the bullet and go with stainless?

3. If I decide to go with dual side exits, what diameter pipes should be used for the system to yield best performance?

4. Any other caveats in dealing with the muffler shop?

Thanks!
 

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how much is he charging to do it?

1. should be a bit louder but i am not sure your pipe diameter will also affect sound.
2.aluminized is fine unless your in an area where there is salt either from the ocean or from snow - road salt. personally i would go with SS.
3. i think a single 2.5 is best.
4. shops vary from place to place. check their welds for quality. should be nice and smooth ripples and not splotchy with gaps and lumps.
 

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Also keep in mind that you'll probably be getting crush bent pipes from a shop vs. mandrel bent pipes in the kit.
 

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I have just the 18" Magnflow muffler and it gives a nice growl. I paid 69, shipped.

AEM is a very good intake. Had one on my first Titan. But went with the Injen this time around and LOVE IT!
 

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Discussion Starter #5
SoBeGraphics said:
how much is he charging to do it?

1. should be a bit louder but i am not sure your pipe diameter will also affect sound.
2.aluminized is fine unless your in an area where there is salt either from the ocean or from snow - road salt. personally i would go with SS.
3. i think a single 2.5 is best.
4. shops vary from place to place. check their welds for quality. should be nice and smooth ripples and not splotchy with gaps and lumps.
The quote was 500 installed for the kit, 250 for the muffler and aluminized pipes plust a polished ss tip. I would love the ss but wow, what a price diff.
 

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Find a quality muffler shop that takes some pride in their work. I went to several shops before I found the right one. My shop owner considers himself a craftsman and his work reflects it in the final product. My system looks factory. Cat-back with true duals and the "X" just ahead of the mufflers.
It sounds mellow with virtually no drone at all.

As far as the CAI. I have a Fram Boost and love it.

With a 2 degree advance I'm a happy old man.
 

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Viking606 said:
Find a quality muffler shop that takes some pride in their work. I went to several shops before I found the right one. My shop owner considers himself a craftsman and his work reflects it in the final product. My system looks factory. Cat-back with true duals and the "X" just ahead of the mufflers.
It sounds mellow with virtually no drone at all.

As far as the CAI. I have a Fram Boost and love it.

With a 2 degree advance I'm a happy old man.
Do you have any pics of your exhaust setup?
 

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Titan5683 said:
Do you have any pics of your exhaust setup?
Sorry, no photos. It's something I really need to do.

Right where the tubes run together we installed the "X". Mufflers are side by side, up-right to allow a little extra room. Duals run out the back.

I will get a picture asap.
 

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Answers to your questions:
1. Good thinking of doing the intake and exhaust systems at the same time. I have custom Volant 2nd gen and I am happy with it. Works well with my true dual. And if you go true dual, I'd recommend an X-pipe.
2. If the $$ are not a factor, I'd recommend SS preferably 304 or aircraft grade. The 409's are cheaper but less resistant to corrosion.
3. I've personally used 2.5" in my system (True duals) and DID NOT loss low end torque proven by my 0-60 ft of 2.0xx sec.
Compare these data:
a. The 04 stock exhaust pressure is 3.55 PSI
b. "Banks Monster" 3 inch reduced the backpressure to 0.275 PSI.
c. Using true dual 2.5 inch improves further to 0.110 PSI.
4. Most muffler shops use the "crush & bend" system. These "crushed" bends have up to 30% decreased internal diameter over same diameter straight tubes. So if you use 2.5" diameter pipes and "crush-bend" them, you basically have an effective 1.75 inch restriction and worse at 1.4 inch if you start with a 2 inch pipe. Because of these factors, I'd recommend "Mandrel bend" system and use TIG welding over MIG.

Things to consider in your choices IMHO. Good luck :cheers:
Click on my SIG for more pics.
 

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1. The magnaflow setup depending on size will be a little louder than stock.
2. I would go with stainless the best would be 304 but most places carry the 409.
3. The best size for exhaust is 2.5 to 3 after the muffler. The y pipe needs to be from 2.25 to 2.5
4. I would recomend a Cat back system you will get mandrel bends instead of crush bends most exhaust shops use crush bends but if you can find a shop that mandrel bends that would be great. The JBA cat back is a great system and I have the K&N 77 series intake and I am loving my setup.

Good luck on the mods.
 

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I installed a JBA catback system last weekend and I am very pleased with it so far. Louder than stock, but not enough to wake the neighbors in the morning. The performance feels much better than stock. System installation was very easily.
 

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I say go with the Magnaflow kit and install it yourself. Mine took a little over an hour to do in the parking lot of my apartment complex. A saw's'all makes things easier, especially if the muffler bolts are rusted together. It's definitely louder than stock, but it ain't Banks or FM loud. Gains in low end torque are awesome. If you only want the look and sound, then go for the muffler shop custom kit. The mandrel-bent kit ain't cheap, but in my opinion, you get what you pay for in performance gains and it really is easy to install yourself. My CAI is the KN77, looks sharp when it's clean, which it definately ain't right now. BTW, you'll be able to beat those cawcamamie Daytona Rams and attract hordes of beautiful women in the process!
 

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Discussion Starter #14
Thanks for all the great info and advice guys!

Well, due to budget limitations, I went with the muffler only and let a local shop with a good reputation do the install. They did not do mandrel bends but I went with 3" pipe and the crush bends seem to be done in such a way that the diameter was not reduced very much. Seems to be just a bit of a ripple and slight pinch. I just didn't think for an extra $250, the minimal performance gain with mandrel bends was worth it. Of course, I could be mistaken.

My Ingen intake should be here in a couple of days; can't wait to install it. Now I just need to find someone to do the 2* advance. I think that will be it for the performance mods. Still have stock tires so those will be needing replacement in not too long.

Again, thanks for the input!
 

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Since we're on the topic of CAIs (and this seems to be an active topic), I have a question for some of you on here. I was browsing through the internet at different racing Titans and came across the Official Titan-OffRoad Race Truck (Titan-offroad.com) and saw that one of their sponsers happens to be S&B Performance Filters. It looks like they run the S&B CAI on the truck and was wondering if any of you have any experience, or know anyone who does, running this CAI. The price seems to be pretty reasonable, so I'm considering this setup for a future upgrade. Any info or comments are greatly appreciated.

Juday:cheers:
 
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