Performance Exhaust [Archive] - Jeep Patriot Forums

: Performance Exhaust


mudd puppy
05-19-2007, 01:25 PM
Hey I got a good question. Since the Caliber and the Patriot are build on the same platform, will the mopar performance or the Mega flow cat-back exhaust fit out trucks?

Jimmy TJ
05-31-2007, 03:14 PM
Magnaflow has just released a kit for the Caliber, I've asked their rep on a Dodge forum I belong too about the "coming soon" kit they have listed for the Patriot. I had a Magnaflow kit on my Ram and it was really nice, so if they produce one for the Patriot, sign me up!

BDEE
05-31-2007, 03:54 PM
I dont know about the mopar or mega flow systems, but if it was me, Id be all over magnaflow. Im currently rocking some magnaflow goodness on my car, and I love it.

pfontainejr
05-31-2007, 04:01 PM
count me in too!!!!!

NightMR
05-31-2007, 07:55 PM
Has anyone heard what these sound like on the other cars? I thought about this a long time ago actually and I'm all about vehicle modification, but I just dont know about this. With a 2.4L 4cyl, I'm afriad my Jeep will sound a lot like my MR2, which doesn't appeal to me at all.

Buddha09
06-21-2007, 04:54 PM
I had a 2.5" magnaflow cat-back with a 3" GHL downpipe on my 2002 VW Jetta 1.8T. My god I loved the peformance gains and the sound it produced. To my surprise, it was pretty quiet with a mellow tone when I would just "cruise" to wherever I was going. As soon as I went WOT, the entire turbo-back system would roarrrrrrrrrr to life :D

Thumbs up for magnaflow products and GHL

OH8 Patriot
10-03-2007, 02:22 AM
I'm getting ready to do the exhaust on mine but I'll be using Flowmaster. I have been in the wholesale exhaust distribution biz for 14 years and I sell both Magnaflow and Flowmaster, but it's been my experience that Magnaflow's just do not hold up as well-to abuse and to normal wear and tear. All that water vapor and condensation from vehicle start up and from your catalytic convertor goes into the muffler and Magnaflows seem to soak it up(they have a packing which Flowmaster does not)-especially when the muffler is mounted far in the back of a vehicle instead of up closer to the engine where things can dry out faster( i know it sounds odd but you can't belive the amount of Magnaflows I've had to warranty because they would rust from the inside out-yes even stainless steel can rust) It's about a 50 to 1 ratio when it came to the warranties. There isn't that much difference in the sound when it comes to these little 4 bangers anyways-they all sound like a bunch of bees in a tin can lol If you do have your exhaust changed make sure your muffler shop re attaches that little ground strap that is connected to the stock muffler---if he doesn't it can sometime create electrical problems. The Pat's come with a weird exhaust system so if your guy keeps scratching his head wondering which muffler he can use--the Flowmaster #52580 should work perfectly-it's meant for a suv and he should be able to install it without too much difficulty-he will have to use 1 small piece of pipe and make 2 90 degree bends-one for the inlet and one for the outlet--this particular Flowmaster has both the inlet and outlet on the very same end--Magnaflow is using the same exact design for their kit--i've also thought of using a Camaro Flowmaster--that way i'd have the dual outlets--will see

quasimodem51
10-03-2007, 08:50 AM
"a bunch of bees in a tin can" - I love it! :)

SoDak-Jeep
10-04-2007, 05:04 AM
I would really love to see some pictures of a Patriot with that Camero exhaust. That sound like it would look really cool. And while we're at it, if anyone can post sound clips that would be sweet too. Pics of any of these systems would be super!

nearly.normal.jimmy
10-04-2007, 11:56 AM
[QUOTE=SoDak-Jeep;31757]I would really love to see some pictures of a Patriot with that Camero exhaust. /QUOTE]

Use the SEARCH function.

FreeAgent
10-04-2007, 10:19 PM
Magnaflow is now developping a exhaust system specialy for the patriot it will be release in a couple of week.. look on her website!!!

1miracle2
10-18-2007, 04:20 PM
Hey OH8 Patriot...
When you do yours of course put some pix up bud!
I found a Pat here also w/a dual out set up also. Looks alright!
hmmm...
Exhaust, Filter & maybe a chip if they make one would be cool!
That should give the Pat a good pepe feeling!

Tiburon
10-18-2007, 10:13 PM
Comeing soon to a show room near you:

http://www.magnaflow.com/02product/shopdisplayproducts.asp?SID=4Jeep&zone=Trucks&id=639&cat=Patriot

kai
10-19-2007, 02:15 PM
autoanything.com has Gibson exhausts for Patriots up

MYITLOG
10-19-2007, 04:23 PM
question.... when upgrading to magnaflow or flowmaster exhaust, would it give the pat better milage/better performance or is it just a better sound?

thanks!

REPUBLIC
10-19-2007, 05:09 PM
http://www.magnaflow.com/02product/shopdisplayproducts.asp?SID=4Jeep&zone=Trucks&id=639&cat=Patriot
Just called this product is still in R&D.

Patriotic
12-08-2007, 10:22 PM
Ill definately be going to Flowmaster for mine.

jp-ajdayt
12-19-2007, 12:49 PM
borla.com is working on one and is supposed to email me when it is available. I assume I can get 7 or 8 more horsepower with a catback exhaust and maybe a K&N drop in filter - and better gas mileage too.

HawgGuy
12-19-2007, 03:23 PM
Once again I am reposting pictures of my custom Magnaflow exhaust. THis system was built by Lakewood Muffler in Denver and cost me $364. It uses a Camaro 1999-2001 Magnaflow muffler.

It looks good, sounds great and is not too loud. Also does help performance especially when teamed up with a K&N airfilter. Also took care of the rattling against the Drawtite 2" hitch.

Elliot

sciron4x4
12-19-2007, 04:00 PM
question.... when upgrading to magnaflow or flowmaster exhaust, would it give the pat better milage/better performance or is it just a better sound?

thanks!

In most cases, when you upgrade your exhaust to a higher/free-er flowing setup, you will gain some MPG (in most cases, probably nothing worth writing home about, but still SOMEthing). To truly gain performance with mileage when you do your exhaust, install a higher/free-er flowing intake as well (even something as simple as a K&N filter, or something). No sense in allowing more air to get out if you're still taking the same amount in.

cadavev
12-19-2007, 04:34 PM
yep always want to do an air intake to make the package breath much better i like the camaro exhuast may go that route how does it sound with the magnaflow muffler??

OH8 Patriot
12-19-2007, 04:57 PM
http://www.magnaflow.com/02product/shopdisplayproducts.asp?SID=4Jeep&zone=Trucks&id=639&cat=Patriot
Just called this product is still in R&D.

I've been in the exhaust biz working for a wholesale distribution company for almost 14 years now and I can safely say that Magnaflow is one of the worst companies out there when it comes to putting out a part number in their catalog or online and then keeping the darn thing in "R&D" for a very long time if not bringing it out at all. They will release it if there is a big enough call for it, but if you are in a hurry I'd go to your local shop and have them custom make you a system. Chances are it will be cheaper for a shop to build it than for you to buy one of the kits. Granted the kits are nice because of the mandrel bends, but almost any shop can order mandrel bent elbows and U bends from their suppliers and make a nice kit for you. Buyers beware--most muffler shops hate it when you take in some kit you bought off of ebay and then try to take it to them to have put on. They feel it's like taking your own eggs to Denny's to be cooked for you. The internet is fun and sometimes the deals are great, but they feel it has taken a huge chunk of their business away. Just be prepared to either install the kit yourself if you buy it online(have fun doing that without a rack lol) or pay the extra that the shop will probably charge you in labor to make up for his lost sale. In some cases buying a kit even from online can cost MORE than what a decent shop would charge to install a performance muffler & a nice stainless tip.

luffing
12-19-2007, 08:38 PM
Duh, what's a 'cat-back'?

jp-ajdayt
12-21-2007, 02:47 PM
Duh, what's a 'cat-back'?

A cat-back is the exhaust system to the rear of the catalytic converter (pipes and muffler)

DarbyWalters
12-21-2007, 03:03 PM
A chambered muffler (like FlowMaster) is not the best for a small displacment engine...something that is flow thru is usually better (Borla, Dynomax, Magnaflow). On a small displacement engine you do not want ANY interuption in flow from chambers or baffles.

OH8 Patriot
12-21-2007, 05:37 PM
A chambered muffler (like FlowMaster) is not the best for a small displacment engine...something that is flow thru is usually better (Borla, Dynomax, Magnaflow). On a small displacement engine you do not want ANY interuption in flow from chambers or baffles.

I would disagree with you on this a tiny bit as quite a bit of hype from the straight through is better muffler manufacturers. It sound great right--straight through-no baffles etc? There is no question that it is a definate boost over the stock system of most vehicles which are very restrictive for sound control reasons. But all the straight through designs do is just that-allow for the air to flow right on in and out. What a Flowmaster actually does is there are plates positioned in a specific way as to draw MORE air down the exhaust system and work as an expansion chamber. When the air gets to the Flowmaster as it is being pulled, it allows the engine to work easier and cooler. Now all performance exhaust mufflers do this to some extent, some more so than others. In a vehicle like our Pat's the actual hp increase will be negligable to minor--maybe a 7 to 10hp gain at most. What is key is the different sounds that each individual will like--there is no doubt-some people hate the way Flowmasters sound and some hate the Magnaflow/Borla ones as they sound like a glasspack(which they are in essence a modern glasspack).
All of the American made performance muffler companies spend millions of dollars on R&D and even more on advertising. They all outperform the stock exhaust-with an increase in sound levels-there is NO getting around that so, if you are in the market for performance--be prepared for a mild to radical increase depending on what item you go with. One last item--for the love of god, would people stop putting 3" exhaust systems on 4cylinder engines that barely put out 150hp--all you are doing is robbing yourself of horsepower and making your cars sound like S*** :D

DJ XS
12-21-2007, 08:24 PM
One last item--for the love of god, would people stop putting 3" exhaust systems on 4cylinder engines that barely put out 150hp--all you are doing is robbing yourself of horsepower and making your cars sound like S*** :D

Wow, thanks a lot. So coming from a person who does not know any better. What particular setup, model, model # would you recommend? I am really interested in upgrading my muffler. Thanks

OH8 Patriot
12-21-2007, 11:37 PM
Well the easiest setup would be a Flowmaster #52580 as it would be the easiest one for a muffler shop to install and shouldn't be too aggressive in the sound--it has the inlet and the outlet on the same end. It will give you one tailpipe which you can have a nice stainless tip attached to. If you want a "dual exhaust look" ask for the #53083-this one is a camaro style with a big case so it shouldn't be too crazy with the sound-this one does come with a 3" inlet(this is just a 2 or 3 inch long inlet-not the whole exhaust system) so your shop will have to make a small adaptor to fit your exhaust pipe which any shop should be able to do. The tailpipes are 2 1/2". Both of these items come in a 5" tall x 10" wide x 17" long case. If you want to go aggressive with the sound, ask for a Super 40 or the smaller cased Super 44 although both of those items will require the use of some mandrel bends or a very good mufflerman who knows how to use his tubing bender. Here is the link that will show you the 2 part #'s I described. http://www.flowmastermufflers.com/80_series.html

RHill
12-22-2007, 11:57 AM
FWIW, the Patriot already comes with a pretty large, unrestrictive muffler. IMO, any performance gain from replacing it is probably going to be negligible and only in the above 3000 RPM range with your foot to the floor. If your foot isn't to the floor, then you won't be using the "extra" power, if any. So, basically, a replacement muffler is going to be a different sound. IMO, two tail pipes coming out from under the rear of a vehicle with a 2360 CC (143 cubic inch) engine is an appearance styling thing.

Here is an exhaustive instrumented test on ten dual mufflers with headers and a three inch exhaust system for a 455 V8 Pontiac LeMans done in 1995. The test also included open headers.

http://www.pontiacstreetperformance.com/psp/exhaust.html

The best muffler for performance was a 2.5 inch input Walker Dynomax 17749. It even beat the 3.0 inch input Walker Dynomax 17734. The choice was between performance and noisier mufflers. Conclusions were large case muffler and put it as far to the rear of the car as possible, so that the exhaust gases would be cooled and reduced in pressure and effective volume as much as possible before entering the muffler. Sounds like the Patriot.

The Camaro muffler designed for a high performance 5.7 litre V8 should definitely give very little back pressure and will give you two tailpipes, but at what cost in sytem life? I don't know.

I still have the original stainless steel dual exhaust system on my 1995 Chevy Caprice 9C1 police package with 195,000 miles on it. This longevity used to be impossible. Mufflers and exhaust pipes lasted less than 50,000 miles back in the sixties. That's how Midas got started.

I bought the 2.4 litre 5MT 4WD Patriot for gas mileage. All else equal, I would have bought the 3.7 litre 6MT 4WD Liberty for not much more than the Patriot. I can afford the Liberty and it's gas bill. I deliberately chose less performance to get better gas mileage to reduce my subsidy of the middle east terrorists. I use a Scangauge II to help me maximize my mileage.

I plan to use my OEM Jeep exhaust system for many years and use my mod money for other things. If the muffler rusts out in my ownership of the Patriot, then I'll replace it, perhaps with an aftermarket muffler.

FWIW and IMO and YMMV. :)

HawgGuy
12-22-2007, 09:54 PM
I forgot to mention in my last post, that although the Magnaflow exhaust I put on, teamed up with the K&N airfilter did give me substantially more performance and better sound, it did NOT improve the mileage at all.

DarbyWalters
12-23-2007, 08:00 AM
Scavenging with a small displacement engine would have to take place MUCH closer to the exhaust ports. A Flowmaster or any chambered muffler 5 or 6 feet down the pipe is not going to "suck" more exhaust out of the cylinders. The only exception would be a rotary engine...because their exhaust temps are so high and they act like a two stroke engine and scavenging effects do occur at that distance (but not with a chambered muffler-rotaries don't like ANY blockage or turns). The best hope for a small displacement 4 cylinder is too make it as smooth as possible. Even if bends are mandrel...a straight section will flow better. The biggest gains with no other changes are going to be in the 1.5-3 hp range. You might also save a bit of weight with an aftermarket muffler and get a better sound.

OH8 Patriot
12-23-2007, 10:03 PM
I forgot to mention in my last post, that although the Magnaflow exhaust I put on, teamed up with the K&N airfilter did give me substantially more performance and better sound, it did NOT improve the mileage at all.

that tends to happen alot when you put on a performance exhaust-simply because you hear that great sound when you are accelerating and you just can't keep your foot off the throttle lol--I've been guilt of that for sure.

OH8 Patriot
12-23-2007, 10:13 PM
FWIW, the Patriot already comes with a pretty large, unrestrictive muffler. IMO, any performance gain from replacing it is probably going to be negligible and only in the above 3000 RPM range with your foot to the floor. If your foot isn't to the floor, then you won't be using the "extra" power, if any. So, basically, a replacement muffler is going to be a different sound. IMO, two tail pipes coming out from under the rear of a vehicle with a 2360 CC (143 cubic inch) engine is an appearance styling thing.

Here is an exhaustive instrumented test on ten dual mufflers with headers and a three inch exhaust system for a 455 V8 Pontiac LeMans done in 1995. The test also included open headers.

http://www.pontiacstreetperformance.com/psp/exhaust.html

The best muffler for performance was a 2.5 inch input Walker Dynomax 17749. It even beat the 3.0 inch input Walker Dynomax 17734. The choice was between performance and noisier mufflers. Conclusions were large case muffler and put it as far to the rear of the car as possible, so that the exhaust gases would be cooled and reduced in pressure and effective volume as much as possible before entering the muffler.

The Camaro muffler designed for a high performance 5.7 litre V8 should definitely give very little back pressure and will give you two tailpipes, but at what cost in sytem life? I don't know.

I still have the original stainless steel dual exhaust system on my 1995 Chevy Caprice 9C1 police package with 195,000 miles on it. This longevity used to be impossible. Mufflers and exhaust pipes lasted less than 50,000 miles back in the sixties. That's how Midas got started.

I'm buying the 2.4 litre 5MT 4WD Patriot for gas mileage. All else equal, I would be buying the 3.7 litre 6MT 4WD Liberty for not much more than the Patriot. I can afford the Liberty and it's gas bill. I am deliberately choosing less performance to get better gas mileage to reduce my subsidy of the middle east terrorists. I have a Scangauge II on the way to help me maximize my mileage.

I plan to use my OEM Jeep exhaust system for many years and use my mod money for other things. If the muffler rusts out in my ownership of the Patriot, then I'll replace it, perhaps with an aftermarket muffler.

FWIW and IMO and YMMV. :)

The Walker 17749 is one of their Super Turbos-it is an EXCELLENT muffler. I know alot of people may say "an old fashioned turbo muffler?" ,but it is a very free flowing,quiet, if not one of the most quiet performance mufflers out there. I had a set of 2 1/2" Super Turbos on a GTO I owned--they were mild sounding but gave great service. When my dad owned his muffler shop back in the 70' & 80's, Walker was a great company to do business with. Unfortunately they have been bought and sold so many times and they are not as popular as they used to be-at least here on the west coast.

DJ XS
12-31-2007, 01:00 AM
Well the easiest setup would be a Flowmaster #52580 as it would be the easiest one for a muffler shop to install and shouldn't be too aggressive in the sound--it has the inlet and the outlet on the same end. It will give you one tailpipe which you can have a nice stainless tip attached to. If you want a "dual exhaust look" ask for the #53083-this one is a camaro style with a big case so it shouldn't be too crazy with the sound-this one does come with a 3" inlet(this is just a 2 or 3 inch long inlet-not the whole exhaust system) so your shop will have to make a small adaptor to fit your exhaust pipe which any shop should be able to do. The tailpipes are 2 1/2". Both of these items come in a 5" tall x 10" wide x 17" long case. If you want to go aggressive with the sound, ask for a Super 40 or the smaller cased Super 44 although both of those items will require the use of some mandrel bends or a very good mufflerman who knows how to use his tubing bender. Here is the link that will show you the 2 part #'s I described. http://www.flowmastermufflers.com/80_series.html

Thank you very much. I will use all of your information.

homac
12-31-2007, 01:55 PM
....when it comes to these little 4 bangers anyways-they all sound like a bunch of bees in a tin can lol If you do have your exhaust changed make sure your muffler shop re attaches that little ground strap that is connected to the stock muffler.....

Great information OH8 ! I especially like the "bees in the can" analogy.....

TorancisJeep
02-19-2009, 07:33 PM
HawgGuy--please post some sound clip or video of your dual magnaflows!