What happens when you upgrade your Jeep’s air filter and exhaust system? I want to open it up with a dual exhaust but have not decided what of air filter yet
What happens when you upgrade your Jeep's air filter and exhaust system?
- Thread starter Juggernaut
- Start date
Your air filter doesn't have any thing to do with the exhaust unless the filter is plugged with dirt then the engine will just starve for air.
Chrysler engineers have the intake system dialed in for maximum filtering and flow. Using a good name brand filter is all that is needed at that end.
Others will chime in about exhaust upgrades.
Check this link out.
wranglerjkforum.net
Others will chime in about exhaust upgrades.
Check this link out.
Air Filter Upgrade
Anyone have any recommendations for, or experience with, air filter upgrades? What's the major difference between the less expensive Red Rock or Rough Country ($150-175) versus the K&N or Flowmaster at $325?
wranglerjkforum.net
Yep, Stay far far away from K&N kinda filters that allow "extreme air" or some crap. Just a way of allowing debris into the block.Chrysler engineers have the intake system dialed in for maximum filtering and flow. Using a good name brand filter is all that is needed at that end.
Others will chime in about exhaust upgrades.
Check this link out.
Air Filter Upgrade
Anyone have any recommendations for, or experience with, air filter upgrades? What's the major difference between the less expensive Red Rock or Rough Country ($150-175) versus the K&N or Flowmaster at $325?
Project Farm youtube has a demonstration of various air filters and K&N was really bad. Same kinda thing with cold air intake, just don't.
Stick with stock, save a jeep.
I have no opinion of exhaust.
BlkGryWrangler
New Member
Nothing substantial happens, trust me on that.
An air intake will do nothing whatsoever on your JK as the factory airbox is not a weak point.
A cat-back exhaust will do nothing either. Some will claim a 5 HP gain or something silly, but that's not something you can actually measure on a dyno as such a small number can be chalked up to nothing more than variables in ambient temp, engine temp, etc.
If you're looking to gain more power, you're going to need to spend more money.
Getting more air into the engine can increase power, but only when you open up the entire air pathway. That would mean intake, bigger intake manifold plenum / runners, ported head, bigger valves, higher compression, etc.
Simply bolting on a cold air intake will do nothing whatsoever on these engines.
An air intake will do nothing whatsoever on your JK as the factory airbox is not a weak point.
A cat-back exhaust will do nothing either. Some will claim a 5 HP gain or something silly, but that's not something you can actually measure on a dyno as such a small number can be chalked up to nothing more than variables in ambient temp, engine temp, etc.
If you're looking to gain more power, you're going to need to spend more money.
Getting more air into the engine can increase power, but only when you open up the entire air pathway. That would mean intake, bigger intake manifold plenum / runners, ported head, bigger valves, higher compression, etc.
Simply bolting on a cold air intake will do nothing whatsoever on these engines.
You will definitely feel a little bump in throttle response. My guess is if you look at the results on a dyno what you will see isn't so much a gain of power but increased throttle response due to the power band having been slightly moved around.
I try to explain things using the bottleneck example to people.
If you open things up with an air intake, it's the same as taking a 2-lane highway and converting it to 4-lanes for 3 miles, but then having it merge right back into 2-lanes after that. All you're essentially doing is moving the bottleneck further up the road.
The real gains come when you expand the entire thing.
The money spent on intakes and exhaust is better spent on beer and bullets.
Michael Shatto
Member
My experience:
All Cat-Back systems work. Better power.
No Cat-Back system works at the speed (RPM) at which you drive.
Breathing is important. Watch the Gale Banks Video on YouTube. But remember the cost/benefit of any changes you make.
That stuff will make no difference when you are stuck and your stock Jeep can get you a speeding Ticket.
All Cat-Back systems work. Better power.
No Cat-Back system works at the speed (RPM) at which you drive.
Breathing is important. Watch the Gale Banks Video on YouTube. But remember the cost/benefit of any changes you make.
That stuff will make no difference when you are stuck and your stock Jeep can get you a speeding Ticket.
Michael Shatto
Member
Ever think you were descending when your GPS showed you were actually ascending? The Butt-Dynamometer is just not accurate.
So I read the literature, saw that their own dynamometer showed that their cat-back, muffler and 'intake' worked! and I installed them. In spite of the fact that their own dynamometer showed it only worked 3,000 RPM above and beyond where the engine runs under normal driving conditions, meaning I paid a lot for sound.
I will install a snorkel because, over time longer filter changes will pay for it. And I've water come onto the hood of my JK.
So I read the literature, saw that their own dynamometer showed that their cat-back, muffler and 'intake' worked! and I installed them. In spite of the fact that their own dynamometer showed it only worked 3,000 RPM above and beyond where the engine runs under normal driving conditions, meaning I paid a lot for sound.
I will install a snorkel because, over time longer filter changes will pay for it. And I've water come onto the hood of my JK.
Hooperdog
JK Enthusiast
Does an air intake or catback improve the sound on a 3.6?
I had a CJ5 with the 304 and it sounded great with magnaflow muffler although you could hear it coming a block away. Never had a radio, never missed one.
Is there such a thing as a sweet sounding V6? -or should I forget about it and spend the money on a good radio?
I had a CJ5 with the 304 and it sounded great with magnaflow muffler although you could hear it coming a block away. Never had a radio, never missed one.
Is there such a thing as a sweet sounding V6? -or should I forget about it and spend the money on a good radio?
My opinion is if you want your Jeep to sound good, go drop $70k on the new Hemi or drop a crate motor in your current Jeep. Jeeps are not muscle cars. I prefer much good music over the sound of my 35" MTs and a 6-cylinder.
And, so-called muscle cars with 6-cylinder engines are not muscle cars. There's nothing worse than seeing a really nice Challenger at a stop light and when he hits the gas at green, it sounds like a lawnmower.
And, so-called muscle cars with 6-cylinder engines are not muscle cars. There's nothing worse than seeing a really nice Challenger at a stop light and when he hits the gas at green, it sounds like a lawnmower.
