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    #21
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    I personally wouldn't recommend a gutted cat over a straight pipe.
    It's not going to make that much of a difference on a diesel, it'll certainly be better and freer flowing, but not as good as a straight pipe.

    On a TD, there is a large snail-like restriction in the exhaust so it isn't as critical, but on an normally aspirated petrol, it can make things worse in certain cases.
     
     

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    #22
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    And EVERYONE should get a magnetic pick-up tool, one of the best invetions since the ratchet!
     
     

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    #23
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    Quote Originally Posted by Xmak 330d View Post
    Can get magnetic pic up tools that are great at retrieving stray bolts, basically a magnet on a telescopic shaft.

    Cheers there 18inch MV2 style wheels

    Nice wheels just had a look for some, they look mint! Maybe if i win the lottery ill treat myself haha!!
     
     

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    #24
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    Quote Originally Posted by TheEnd View Post
    I personally wouldn't recommend a gutted cat over a straight pipe.
    It's not going to make that much of a difference on a diesel, it'll certainly be better and freer flowing, but not as good as a straight pipe.

    On a TD, there is a large snail-like restriction in the exhaust so it isn't as critical, but on an normally aspirated petrol, it can make things worse in certain cases.
    I was just planing on replacing the cat straight after the turbo, the decat pipes are £150 which seams alot for about 2ft of bent pipe. Read lots a post saying the turbo is free to spin up faster due to less back pressure. So thought removing the innards of a standard cat would do just the same job.
     
     

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    #25
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    Order my Oil breather filter kit today and looking forward to fitting that and cleaning the EGR valve over weekend and getting the remap sorted ASAP :-)
     
     

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    #26
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    Quote Originally Posted by Xmak 330d View Post
    I was just planing on replacing the cat straight after the turbo, the decat pipes are £150 which seams alot for about 2ft of bent pipe. Read lots a post saying the turbo is free to spin up faster due to less back pressure. So thought removing the innards of a standard cat would do just the same job.
    It should do. It won't affect the exhaust tuning like in a petrol where it uses timed pulses of exhaust gasses to help clear out the cylinders, so in your case, it'll always do something good, but a straight pipe might be just that little bit better!

    If you can find an old cat, it'll certainly have a better £ to bhp ratio than a specially made and expensive pipe.
     
     

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    Xmak 330d (14-03-2011)

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    #27
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    gc gaz - Just to mention that if and when you do decide to change your rims, it would pay off to look for a lighter set than the MV2 (18x8 - 11.23kgs and 18x8.5 - 11.93kgs). Reduction in unsprung weight and rotational mass is always a winner if you are looking to get the most out of your ride. Without spending mega money, if you look about there are decent lightweight rims that will not cost the earth.

    If you are not that fussed about getting the most performance, then just get the rims that are the most pleasing to your eyes
     
     

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    gc_gaz (16-03-2011)

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    #28
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    Quote Originally Posted by DirtyTorquer View Post
    gc gaz - Just to mention that if and when you do decide to change your rims, it would pay off to look for a lighter set than the MV2 (18x8 - 11.23kgs and 18x8.5 - 11.93kgs). Reduction in unsprung weight and rotational mass is always a winner if you are looking to get the most out of your ride. Without spending mega money, if you look about there are decent lightweight rims that will not cost the earth.

    If you are not that fussed about getting the most performance, then just get the rims that are the most pleasing to your eyes
    Ah rite I didnt realise that there was a massive differnece so i will bear that in mind!!

    Wont be getting alloys for a while as mine only had new set on last summer so gonna wear those out first :-)
     
     

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    #29
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    Weight reduction is always a good thing but reduction of rotational mass is even better (hence the reason for the use of lightweight flywheels, driveshafts, propshafts, pulleys and the like).

    Also back onto your modifications, if you have not got a front decat pipe already...here is one worth bidding on.

    http://cgi.ebay.co.uk/STAINLESS-STEE...item19c3ee793e

    I actually have one from the same people on mine. The build quality and fit is damn well good. I saw you mentioned of a remap. I would personally leave that to be the last thing you do as when you get it custom mapped, you can get it done to make full use of all the other engine enhancements you have made.
     
     

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    #30
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    Quote Originally Posted by DirtyTorquer View Post
    Weight reduction is always a good thing but reduction of rotational mass is even better (hence the reason for the use of lightweight flywheels, driveshafts, propshafts, pulleys and the like).

    Also back onto your modifications, if you have not got a front decat pipe already...here is one worth bidding on.

    http://cgi.ebay.co.uk/STAINLESS-STEE...item19c3ee793e

    I actually have one from the same people on mine. The build quality and fit is damn well good. I saw you mentioned of a remap. I would personally leave that to be the last thing you do as when you get it custom mapped, you can get it done to make full use of all the other engine enhancements you have made.
    Ah right whats a decat pipe do and is it easy to fit, affect MOT?

    Had a go at fitting the Oil breather filter today via the walkthrough on here and got on perfectly until I realised I had the wrong filter! DOH!
     
     

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