Removed my secondary cats.

Machine monkey said:
How you getting on with TIG? If you need any advice and i can help just ask.

Mat
Click to expand...

Cheers m8 :thumbsup: I am actually looking for a training course to improve my TIG, I can do it, just need to perfect my coordination lol..

Mike
 
keep practising it is just about amps and cordination. And lotsof practice!!!

I did a really good 3 day course with these people when i first started.
https://www.google.co.uk/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwiNjZys5JvTAhUlIsAKHQvVA-kQFggvMAA&url=http%3A%2F%2Fwww.mgts.co.uk%2Fapprenticeships&usg=AFQjCNGZLBRqll0itY17l8Fxbv26JwB3PQ&sig2=v5rhaGJ8PiH8kdpSUjRhkQ
 
This thread's reminded me I really ought to get my decat pipes fitted :rofl: Did exactly the same as you Mike and gutted a donor set, just need to make up the ends now so then can easily be mounted up to the rest of the exhaust. I couldn't believe how much of an obstruction those secondary cats are! Every cat I've seen before, you can just knock out whereas these are nigh impenetrable
 
Player 1 said:
This thread's reminded me I really ought to get my decat pipes fitted :rofl: Did exactly the same as you Mike and gutted a donor set, just need to make up the ends now so then can easily be mounted up to the rest of the exhaust. I couldn't believe how much of an obstruction those secondary cats are! Every cat I've seen before, you can just knock out whereas these are nigh impenetrable
Click to expand...

Yup, they were a pig to gut!

Mike
 
Ok, just in the final throes of exhaust mod "Stage 3" :)

Looking at the supersprint X pipe's available for the ///M which delete the rear resonator (at a cost!) I thought, I want something similar... I assumed that the std resonator on mine does in fact "mix" the two pipes together inside it.

So, I've taken the exhaust off (again) and cut open the top of the little resonator, sure enough it allows the gasses from both pipes to mix and swirl around in there, before then shoving them back out via two pipes, if that makes sense. So anyway, I removed the internals with the plasma and fabricated two stainless tubes, which I then welded in place, before popping the lid back on and tig welding it up.

Just nipping to cash & carry, and will refit when I get home and hopefully, if I like the sound, post a vid.

I am hoping for even more of a "snarl" and popping, seeing as my complete exhaust is now effectively two separate, unmixed pipes from the cylinders to the tailpipes.

Watch this space...

Mike
 
So... is secondary cat deletion a service you can offer Aswell as the backbox modding for the Si?

If so how much are we talking, it's a great engine it just needs to be more vocal with cracks and pops and I think this does it perfectly!
 
RyanB88 said:
So... is secondary cat deletion a service you can offer Aswell as the backbox modding for the Si?

If so how much are we talking, it's a great engine it just needs to be more vocal with cracks and pops and I think this does it perfectly!
Click to expand...

Yes, I can do it - However, if doing again, I would not attempt to disturb the HORRENDOUS downpipe to exhaust joint as I did on mine, but would use 2 of the same sleeves I fit the backboxes with.

Let me see if "my man" has a spare set of Si cats, so I could have one ready made - Cost wise, I'd say an extra £200, which is there or thereabouts what an exhaust place would charge for cutting out the originals and welding in plain tube. The problem with that, is if an MOT tester realises the original secondaries have been removed, it could be an MOT fail. The way I do it, the car remains completely standard looking from underneath as I take off the heat shields, cut a hole in the top side and remove the guts, before welding them up and refitting the shields.

Mike
 
Ducklakeview said:
RyanB88 said:
So... is secondary cat deletion a service you can offer Aswell as the backbox modding for the Si?

If so how much are we talking, it's a great engine it just needs to be more vocal with cracks and pops and I think this does it perfectly!
Click to expand...

Yes, I can do it - However, if doing again, I would not attempt to disturb the HORRENDOUS downpipe to exhaust joint as I did on mine, but would use 2 of the same sleeves I fit the backboxes with.

Let me see if "my man" has a spare set of Si cats, so I could have one ready made - Cost wise, I'd say an extra £200, which is there or thereabouts what an exhaust place would charge for cutting out the originals and welding in plain tube. The problem with that, is if an MOT tester realises the original secondaries have been removed, it could be an MOT fail. The way I do it, the car remains completely standard looking from underneath as I take off the heat shields, cut a hole in the top side and remove the guts, before welding them up and refitting the shields.

Mike
Click to expand...
This sounds awesome, very impressed by your handiwork! Might have to start saving up and getting you to make mine sound this good! :D
 
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