MK5 Golf GTI
All Things Mk5 => How to Guides / Troubleshooting => Topic started by: Black9 on May 29, 2012, 01:03:25 am
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So read a post on here about a member who removed his pre-cat on his gti with stock exhaust.
How Wld I go About doing the same? Is the pre-cat located just after the Downpipe? Is there a sensor in it and if so where would I move the sensor to!?
Can I expect this to free up the revs a bit and add a bit more exhaust noise? Talk to me :happy2:
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I've got pre cat delete on my powerflow cat back system.expect more noise and also more power if custom remapping.do a search as this topic has been mentioned a few times. On ko3 golf,stage 1 Rtech map,pre cat delete and itg intake managed 256 bhp and near to 300 torques on there rolling road.next up for me is sports cat. :evilgrin:
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I did this a week and a half ago and it feels like it pulls harder at higher revs. The precat is before the bend in the downpipe. It took me and a mate about 3 hours all in. Exhaust noise is a little bit more but mostly I hear more turbo. And very loud pops from the exhaust when I change gear within the first few mins of driving. But that depends what rpm you change at.
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So read a post on here about a member who removed his pre-cat on his gti with stock exhaust.
How Wld I go About doing the same? Is the pre-cat located just after the Downpipe? Is there a sensor in it and if so where would I move the sensor to!?
Can I expect this to free up the revs a bit and add a bit more exhaust noise? Talk to me :happy2:
Ah your saw my thread :grin:
It's as simple as I mentioned, there are links to pictures on pg 2 IIRC. I got my local trusted garage to do it for me :happy2:
Gray
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Will get round To this eventually :popcornsoda:
So many other parts I'm in the process of replacing :sad1:
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Me and a friend had a go at this today, started un-tightening the 1st bolt (one you can see from engine bay) felt real tight, we tried WD40 (left for 10mins) still felt tight.
so heated up with blow torch, got a few turn out of it but still was really tight, my mate said it feels like itmight snap....i have heard a few people mention this
Anyone have a link to get a replacement bolt and seal kit?....or just buy straight from VW
Thanks guys
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Bolt and gasket part numbers on my thread, in the general area, probs about page 2 or 3 by now :happy2: