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Author Topic: Best decat downpipe for gti mk5?  (Read 2725 times)

Offline hussnainh8

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Best decat downpipe for gti mk5?
« on: July 21, 2019, 07:53:16 am »
Hello

Whats the best decat downpipe to  buy for a gti mk5 edition 30? I have a miltek cat back resonated exhaust system and currently a 200 cell sports cat which I want to replace for a decat downpipe to gain more power.

Will all the decat downpipes cause the engine light regardless of which one I buy?

Are the ebay downpipes any good? You can pick one up for around £125 brand new.. why are the ebay ones a lot cheaper than lets say miltek?

Last but not least.... does anyone want to swap a 200 cell sports cat downpipe for a decat downpipe?

Thank you!

Offline rich83

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Re: Best decat downpipe for gti mk5?
« Reply #1 on: July 21, 2019, 08:40:07 am »
Best or cheapest?

Milltek or Powervalve (BCS) are the best.

eBay are the cheapest.

Offline hussnainh8

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Re: Best decat downpipe for gti mk5?
« Reply #2 on: July 21, 2019, 09:20:13 am »
Value for money.. whats the difference buying a miltek or bcs compared to ebay decat?

Offline amanda

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Re: Best decat downpipe for gti mk5?
« Reply #3 on: July 21, 2019, 09:54:34 am »
Miltec for def .......I have one on mine  :P

Offline rich83

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Re: Best decat downpipe for gti mk5?
« Reply #4 on: July 21, 2019, 11:32:55 am »
Value for money.. whats the difference buying a miltek or bcs compared to ebay decat?

eBay is sh*te quality materials. Milltek or BCS will be better grade of stainless and put together better. BCS better than milltek and have fantastic after sales.

Offline hussnainh8

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Re: Best decat downpipe for gti mk5?
« Reply #5 on: July 21, 2019, 04:45:16 pm »
Miltec for def .......I have one on mine  :P

Is yours full miltek and is it resonated or non resonated? I want to get pops and bangs but currently I have miltek catback with a 200 cell sports cat and want the pops and bangs to be loud but at the same time I dont want any drone? 🤔

Offline hussnainh8

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Re: Best decat downpipe for gti mk5?
« Reply #6 on: July 21, 2019, 04:45:55 pm »
Value for money.. whats the difference buying a miltek or bcs compared to ebay decat?

eBay is sh*te quality materials. Milltek or BCS will be better grade of stainless and put together better. BCS better than milltek and have fantastic after sales.

That would make sense.. time to find a miltek downpipe for sale 🤣

Offline pudding

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Re: Best decat downpipe for gti mk5?
« Reply #7 on: July 27, 2019, 01:32:35 pm »
Best = track slag.

Most others aren't full bore.  Remember turbo outlet is about 88mm, most DPs are only 3" ID (some even less!) which is an undesirable step in the flow.

TS also use proper OEM spec flex coupling of a decent length, which is important.

http://trackslag.com/index.php?id_product=35&controller=product


2007 ED30 | 2009 TDI 140 | 2016 BMW 330D

Offline amanda

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Re: Best decat downpipe for gti mk5?
« Reply #8 on: July 27, 2019, 04:01:12 pm »
Miltec for def .......I have one on mine  :P

Is yours full miltek and is it resonated or non resonated? I want to get pops and bangs but currently I have miltek catback with a 200 cell sports cat and want the pops and bangs to be loud but at the same time I dont want any drone? 🤔

My mk5 gti is cat back non res and does occasionally give a pop and bang under spirited driving but my other car is full Milly non res decatted ........that will pop and bang and spit flames when driven but I don’t seem to notice any droneing but maybe because it is a much bigger car than the golf  :star:
If you get a remap you can have pops and bangs coded in!!!!