 | Home > Puma (Tdci) > 2.2 Defender Exhaust Question |
 
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| keith Member Since: 15 Aug 2012 Location: Edinburgh Posts: 2212  
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Yep i understand. For me when it comes to exhausts then no company can make pre made parts exact , only a custom made SS will do that way it can be bent and shaped exact to suit . Unfortunately because of my 2.2 dpf only the mid and end boxes off can be done but atleast its breathing abit better and no noise increase
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28th Nov 2012 10:18pm |
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| keith Member Since: 15 Aug 2012 Location: Edinburgh Posts: 2212
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No mate done the mid box first then 3 wks later the back . I found that mid box removed increased smoother accelaration and more power so therefor less restrictive , then i found that every now and then the power was being held up and could feel that the back box was doing the restriction and the performance and smooth power came when it cleared its self so then i took off as a temp experiment . I find now a total differance with clean smooth unrestricted performance , a must do . Remember that the dpf and cat are there to do the job . Has to be good for the car and no wind up on th turbo because its all behind the dpf and cat . That silly back box is just a waste of space behind the wheel.
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28th Nov 2012 10:36pm |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20367 
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No DPF for mine just EGR but I agree on the centre box. massive great load of junk. As I mentioned before it seemed vulnerable to me. $W33T $0U7H3RN $UG4R
🇬🇧🏴🏴🏴🇮🇪🇺🇸⛽️🛢️⚙️🧰💪 |
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29th Nov 2012 10:36am |
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| benn01 Member Since: 21 Jan 2015 Location: Brazil Posts: 43 
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I know this is an old thread...but is it confirmed that improvement is much better with mid and rear silencers removed? Price difference at the exhaust place is the same.
Is there a video out there that has the sound of a straight through exhaust? I could only find one for decat and midbox removed. Also, if I am having the catalytic converter cut out does the crossmember need to be tampered with? I read somewhere that if it is being cut then the motor can be jacked up a bit...I just can't find the thread. |
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26th Jan 2015 7:05pm |
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| benn01 Member Since: 21 Jan 2015 Location: Brazil Posts: 43
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any thoughts?
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27th Jan 2015 7:51pm |
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| bell-auto-services Member Since: 08 Jul 2007 Location: North Yorkshire Posts: 2232 
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Removing the centre and mid box does help it breath a little better yes, as for a measured bhp its a neglibale measured gain.
The 2.2 has in most cases a DPF and a CAT and to remove it does need programming of the ecu as well as the cross member removed and engine lifted slightly to get it outand then is put back after the exhaust change. Pete |
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27th Jan 2015 8:07pm |
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| Pickles Member Since: 26 May 2013 Location: Melbourne Posts: 3784  
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There's not much point in changing/deleting anything on the exhaust if there are going to be no measurable performance gains, which I suspect would be the result if you did a before & after dyno run changing NOTHING else.
On a high revving petrol engine maybe, but with a slow revving diesel like the 2.2 Puma, I don't think so. Pickles. |
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27th Jan 2015 9:36pm |
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| AndrewS Member Since: 10 Apr 2007 Location: Hereford Posts: 3707 
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I would like to find an exhaust fitment or alteration that would make the vehicle sound better
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27th Jan 2015 9:48pm |
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| bell-auto-services Member Since: 08 Jul 2007 Location: North Yorkshire Posts: 2232
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The only mod that will make it louder is a Decat/DPF. Its one of those jobs thats a apin in the arse just for a little noise.
Pete |
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27th Jan 2015 10:04pm |
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| benn01 Member Since: 21 Jan 2015 Location: Brazil Posts: 43
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I have a 2.4 not a 2.2...so your thoughts are decat and mid box cut out are the way to go? Leave the rear silencer alone?
Slight improvement would be worth it as the cost is next to nothing. Thanks. |
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28th Jan 2015 12:29am |
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| Willey Member Since: 29 Jan 2015 Location: Sydney Posts: 5
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With the 2.2's whats the best way to remove the DPF along with how to get rid off the unnecessary bits which will give it a nice note with out making the engine sound loud?
I have heard how the DPF's get blocked with time. |
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18th Sep 2015 1:44pm |
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| Defender-Stu Member Since: 14 Jun 2012 Location: South West England Posts: 1320
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So after reading this I will say that putting a straight though pipe to replace the whale of a centre box lets the car beathe better but wont need a remap and wont cause any issues? Am I right?
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19th Sep 2015 10:17am |
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| 4wheeler Member Since: 13 Apr 2010 Location: Melbourne Posts: 87 
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Willey, Unless something has changed in the last few months, Australian delivery Defenders don't have a DPF fitted, only a catalytic converter. There is a blanking nut located in the top of the exhaust outlet where the sensor for the DPF would be if fitted.  Click image to enlarge |
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19th Sep 2015 10:44am |
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| YOLO110 Member Since: 14 Feb 2015 Location: Perth Oz and Stansted UK Posts: 1642
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I would be interested in the answer to this too... The centre box is HUGE and does compromise ground clearance too!  YOLO... You Only Live Once... |
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19th Sep 2015 11:00am |
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