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Home > Maintenance & Modifications > Alternative or modded exhaust on Freelander 2 3,2Liter i6.
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Redfox



Member Since: 07 Jan 2024
Location: Copenhagen
Posts: 154

Denmark 2007 Freelander 2 i6 SE Auto Izmir Blue
Alternative or modded exhaust on Freelander 2 3,2Liter i6.

Hi all,

Since I bought the i6 Freelander 2 just before New year, I've taken a look at the exhaust system. A bit tight I'd say regarding the 4 cats and the exhaust manifold. So, let's for the easiness' sake, talk about the cat back exhaust system.

1/ are there any real world better performing cat back systems?

2/ What do they give? Noise, power, torque, look etc.

3/ Only in relation to engine performance mods or as a stand alone?

4/ have someone built their own in tigged stainless steel?

5/ Isn't the first thing to do, a opening up or at least a check on intake air? (tubing).

I absolutely loathe K&N etc. filters. I have done enough dyno tests to see what they do and doesn't do. Standard paper filter is fine by me. I want to retain the off road capabilities, incl. wading. evt. even better. Snorkel? Noise? EC approval on snorkel, tuning and exhaust? Legal by law now in the EV.

Any comments are highly appreciated, more so the ones from people what have actually tried it in real life.

Btw. is the facelift front fender making the off road driving worse or is it the same? (angle etc.).

Kind regards,
Redfox.

Post #439409 14th Feb 2024 11:11 pm
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BossBob



Member Since: 30 Sep 2010
Location: Bristol
Posts: 1384

England 2007 Freelander 2 TD4 GS Manual Baltic Blue

If you fit the spats in front of the front wheels that are part of the facelift you’ll be restricting ground clearance. The same with the stiff plastic mudguards. The fuel tank is the lowest point of the chassis and grounds out before anything else. The snorkels I’ve seen for the FL2 are a bit pointless unless you change the ducting within the front wing as the whole thing is porous. I don’t know about the i6 but the diesel air filter has a drain valve which is often missing.

Post #439411 15th Feb 2024 7:42 am
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I Like Chips



Member Since: 25 Jun 2017
Location: Ascott Under Wychwood
Posts: 1540

United Kingdom 2011 Freelander 2 SD4 HSE Auto Indus Silver

Wondering if the one way drain valve serves any real purpose.Yes the air box does need a drain but why not just a hole

If wading you will have to be very very deep to get water in it am I right ?

I know water can be sucked in via the air intake hence the need for a drain hole

Post #439412 15th Feb 2024 7:51 am
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BossBob



Member Since: 30 Sep 2010
Location: Bristol
Posts: 1384

England 2007 Freelander 2 TD4 GS Manual Baltic Blue

No, the bottom of the airbox is well below the vent in the wing and the system is under suction when the engine is running. There have been reports that people have found the vent missing as a result of driving through puddles, let alone proper wading, with water getting in the airbox splashing and saturating the air filter which would essentially block it and the filter being sucked further down the inlet pipes along with water.
In reality, unless you waterproof the whole engine bay and its electrical components you will be asking for failure. The standard starter motor and alternator aren’t waterproof, nor is the fuse box. The radiator and intercoolers are reminiscent of filter systems used to take solids out of slurry and need serious cleaning to avoid them being blocked by baked on mud.

Post #439415 15th Feb 2024 10:33 am
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MotionInc



Member Since: 17 Jun 2019
Location: North America
Posts: 1354

Canada 2008 LR2 i6 SE Auto Tambora Flame

When I did a search years ago, I could only find Magnaflow 15576 which is still available for the LR2/FL2 in N.A. A custom shop might be an option.

Last edited by MotionInc on 15th Feb 2024 1:31 pm. Edited 1 time in total

Post #439418 15th Feb 2024 1:29 pm
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Dean1234



Member Since: 18 Jan 2022
Location: Northamptonshire
Posts: 219

United Kingdom 2010 Freelander 2 TD4_e XS Manual Biscay Blue

On the subject of air filters/air boxes... We had found by going through some deeper puddles that our air filter was getting wet. Just like so many others out there, our 1 way valve/vent at the bottom of the air box was missing so water was able to easily get up and into the air box. We then found out that you can replaced and upgrade the valve/vent and made a little video about it. To us, this is the most important "fix" that we have done on the car and highly recommend everyone checking their airbox.



Even with that modification, after we did this (which I know isn't normal every day driving)...

https://youtube.com/shorts/HrKzNxmLOpw?si=lZbzkg9Q7c1TFdip

Our air filter was half coated in mud (most likely from the mud run). MuddyMods have recently launched this which should further solve the issue...

https://www.muddymods.com/collections/free...-way-valve

MuddyMods also sell a raised intake which changes the ducting.

https://www.muddymods.com/collections/free...-2-snorkel

You can see it being fitted to Joel's car here...



But as Boss Bob has said, you might just be moving any water issues from the airbox to something electrical. Smile https://www.youtube.com/@scottandalana4x4

Post #439419 15th Feb 2024 1:30 pm
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Gland rover



Member Since: 15 Mar 2015
Location: South Australia
Posts: 22

Australia 

I noticed a significant increase in power when driving with the four catalytic converters de-cored.

Post #441189 28th Apr 2024 1:20 pm
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MotionInc



Member Since: 17 Jun 2019
Location: North America
Posts: 1354

Canada 2008 LR2 i6 SE Auto Tambora Flame

Hell Yes!!!

Post #441193 28th Apr 2024 2:25 pm
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MotionInc



Member Since: 17 Jun 2019
Location: North America
Posts: 1354

Canada 2008 LR2 i6 SE Auto Tambora Flame

Gland rover wrote:
I noticed a significant increase in power when driving with the four catalytic converters de-cored.


All the O2 sensors did not require a bypass?

Post #441195 28th Apr 2024 2:30 pm
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Gland rover



Member Since: 15 Mar 2015
Location: South Australia
Posts: 22

Australia 

There’s a few ways to bypass the O2 sensors. It’s just the second pair that need to be modified to avert an error. Using a spacer is probably the easiest way. I just wrapped the ends of the second pair of 02 sensors with a reinforced insulated aluminium tape as a temporary fix, until I fitted spacers - haven’t had an error yet.
Better fuel economy also, though this is counteracted by the accelerator being more enticing (fun) to use.

Post #441211 29th Apr 2024 6:21 am
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MotionInc



Member Since: 17 Jun 2019
Location: North America
Posts: 1354

Canada 2008 LR2 i6 SE Auto Tambora Flame

Good to know. Thumbs Up

Post #441220 29th Apr 2024 11:23 am
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Nodge68



Member Since: 15 Jul 2020
Location: Newquay
Posts: 2082

United Kingdom 2009 Freelander 2 TD4 SE Manual Rimini Red

Gland rover wrote:
There’s a few ways to bypass the O2 sensors. It’s just the second pair that need to be modified to avert an error. Using a spacer is probably the easiest way. I just wrapped the ends of the second pair of 02 sensors with a reinforced insulated aluminium tape as a temporary fix, until I fitted spacers - haven’t had an error yet.
Better fuel economy also, though this is counteracted by the accelerator being more enticing (fun) to use.


No use for those in most of Europe though, where the cat function is checked at the annual road worthiness test. Hyundai Ioniq 5 Ultimate. The family car.
2009 Rimini Red SE TD4. Gone.
2006 Tonga Green i6 HSE. Gone.
Audi A5 convertible, my daily driver.
1972 Hillman Avenger GT, the project.

Post #441351 3rd May 2024 4:42 pm
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Redfox



Member Since: 07 Jan 2024
Location: Copenhagen
Posts: 154

Denmark 2007 Freelander 2 i6 SE Auto Izmir Blue

Exactly, and you will loose the reg. plate immediately and get a heavy fine on the spot.
With the new road inspections (on the road), the same will happen, and you will get a choice of either loose the plate now and here and have it towed away, or they will take the car forever (with your signature), where it will be sold and the money goes in the big black bottomless government moeny-box.
Such is the EC, I am afraid.
You Brits don't realize how fortunate you are to have voted out.

Kind regards,
Redfox.

Post #441353 3rd May 2024 4:56 pm
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Lightwater



Member Since: 21 Aug 2014
Location: Sydney Northern Beaches
Posts: 4906

Ukraine 2013 Freelander 2 2.0T SE Auto Fuji White

Option for increasing performance:

Click image to enlarge

Alloy wheels help as well! Procrastination, mankind's greatest labour saving device!

Acoustic insulation ARB TPMS 3xARB air compressors After cooler Air tank On-board OCD pressure air/water cleaning Additional 50L fuel Carpet in doors ABE 2x1kg Waeco 28L modified fridge Battery 4x26ah Solar 120w Victron MPPT 100/20 DC-DC 18amps 175amp jumper plug Awning 6x255/60R18

Post #441386 5th May 2024 12:36 pm
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Nodge68



Member Since: 15 Jul 2020
Location: Newquay
Posts: 2082

United Kingdom 2009 Freelander 2 TD4 SE Manual Rimini Red

Redfox wrote:
Exactly,
You Brits don't realize how fortunate you are to have voted out.

Kind regards,
Redfox.

You're the first foreign national I've heard say that. Most think the UK public were stupid for voting out.
Yes the government made a right pig's ear out of the negotiations, but I think coming out of European control was a good thing. Hyundai Ioniq 5 Ultimate. The family car.
2009 Rimini Red SE TD4. Gone.
2006 Tonga Green i6 HSE. Gone.
Audi A5 convertible, my daily driver.
1972 Hillman Avenger GT, the project.

Post #441392 5th May 2024 7:11 pm
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