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PFL secondary decat


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#1
AJB-RS3

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So we're getting into the lands of real procrastination and boredom now! Hope everyone is doing okay and keeping safe.

Thought I'd see what everyone's opinion is between scorpion, Audi and milltek midpipes for PFL cars.

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#2
RS3Dell

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Tbh there all much of much just find the cheapest you can get as there only 2 pieces of pipe with a flange welded on them.

Or get your hands dirty & knock the cat's out as they don't make the slightest different at mot time & save yourself some money.

Dell.

Edited by RS3Dell, 19 May 2020 - 02:51 PM.

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#3
AJB-RS3

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Yeah, seems a slight difference but scorpion is 2 3/4" Milltek is 3" but scorpion doesn't have mot for road use. All a similar price too at around £200.

Think the milltek is a slightly deeper sound and slightly louder. I've got to wear a professional hat sometimes though so can't go full ASBO which rules DIY out lol

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#4
RS3Dell

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AJB-RS3.

Haven't the PFL got 2x 2nd cat pipes between the downpipe & back box ?

Dell.
RS3 8P 2012 Phantom Black, Bucket Seats,Optic Black Pack, MRC Stage 2,+ DSG Remap, Forge Intercooler, Autotech HPFP, HG Motorsport Intake Pipe, BMC Airfilter,Powerflex Gearbox & Dog Bone Mount Inserts, Fully Decatted OEM Exhaust, 443Ps 777Nm,8v 8 Pot Calipers,Reyland 2 piece Discs & DS2500s All Round,Bilstein B14, 034 ARB.MPS4s,VCDs User.

#5
Evil Diesel

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Yeah, seems a slight difference but scorpion is 2 3/4" Milltek is 3" but scorpion doesn't have mot for road use. All a similar price too at around £200.

Think the milltek is a slightly deeper sound and slightly louder. I've got to wear a professional hat sometimes though so can't go full ASBO which rules DIY out lol

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All will be pretty much the same so I would go with Dell's suggestion of gutting the cats in place and spending the £200 saved on Swarfega and beer.

 

To be honest, I would skip the Swarfega and go larger on the beer package or possibly toss a bottle of Glenfidditch into the mix.



#6
Evil Diesel

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I did manage to buy a botttle of Glenfidditch at Costco last time I went for £22.  On the shelves at Tesco for £35.  Should have filled my boots.



#7
AJB-RS3

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The Yamazaki distillers reserve is a nice one to try actually if you're a regular to costco!

In reality how loud is it to decat the standard mid pipes?

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Edited by AJB-RS3, 19 May 2020 - 09:37 PM.


#8
AJB-RS3

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AJB-RS3.

Haven't the PFL got 2x 2nd cat pipes between the downpipe & back box ?

Dell.

Yeah they do Dell

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#9
RS3Dell

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Yeah they do Dell
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In that case it doesn't matter what size the decat pipes are as they will be sleeve down if bigger to connect to the oem back section.

Dell.
RS3 8P 2012 Phantom Black, Bucket Seats,Optic Black Pack, MRC Stage 2,+ DSG Remap, Forge Intercooler, Autotech HPFP, HG Motorsport Intake Pipe, BMC Airfilter,Powerflex Gearbox & Dog Bone Mount Inserts, Fully Decatted OEM Exhaust, 443Ps 777Nm,8v 8 Pot Calipers,Reyland 2 piece Discs & DS2500s All Round,Bilstein B14, 034 ARB.MPS4s,VCDs User.

#10
AJB-RS3

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Any advice for doing this then guys? What a the best way to get the mod pipes off and knock the cat out?

Aaron

#11
RS3Dell

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Any advice for doing this then guys? What a the best way to get the mod pipes off and knock the cat out?
Aaron


Aaron.

Loosen the 2 clamps at the back on both secondary cats,undo the 6 flange stud nuts on the down pipe then drop the cat's down,but a word of warning the flange studs have a habit of breaking off so give then a very good lub before hand.

Now this is the fun part NOT ! with a very long drill or power chisel break up the cat material inside the pipes from the flange end.

I did mine with the help of a friend by hand which took some doing as the cat just compacts onto itself but it was worth it as the exhaust system still looks oem.

The simple way is to just buy the decat pipes & fit them.

Dell.
RS3 8P 2012 Phantom Black, Bucket Seats,Optic Black Pack, MRC Stage 2,+ DSG Remap, Forge Intercooler, Autotech HPFP, HG Motorsport Intake Pipe, BMC Airfilter,Powerflex Gearbox & Dog Bone Mount Inserts, Fully Decatted OEM Exhaust, 443Ps 777Nm,8v 8 Pot Calipers,Reyland 2 piece Discs & DS2500s All Round,Bilstein B14, 034 ARB.MPS4s,VCDs User.

#12
Ashy

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You can buy replacement cat delete pipes for the pfl from Audi, cant remember the part numbers off hand but they were only around £55 each.

I think they are from the tt or the fl RS3, there is a thread on here somewhere with the part numbers.



#13
AJB-RS3

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Cheers guys

Aaron

#14
Keithm

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Hi

I got a pair from toyo sports about £100, had them for a year there passed the mot again this year with them on, not at the Audi dealership, checked them for cracks or leakage, still ok, no corrosion and it came with all the hardware such as bolts and flange kit

Cheers

#15
AJB-RS3

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Awesome! Cheers Keith!

I've been thinking about getting the existing mid pipes this weekend but it's not sitting well with me so I'm just going to order some of the scorpion or Audi ones as they're not market not for road used.

Aaron

#16
RS3Dell

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Awesome! Cheers Keith!
I've been thinking about getting the existing mid pipes this weekend but it's not sitting well with me so I'm just going to order some of the scorpion or Audi ones as they're not market not for road used.
Aaron


Aaron.

If I remember correctly the scorpion decats have "Not For Road Use" on a little metal plaque with a spot weld at each corner 😁

Dell.
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#17
AJB-RS3

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Ah okay, maybe Audi ones it is then

Aaron

#18
RS3Dell

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Aaron.
If I remember correctly the scorpion decats have "Not For Road Use" on a little metal plaque with a spot weld at each corner
Dell.


Aaron.

Just grind off the retaining welds as others have.....sorted !

Dell.
RS3 8P 2012 Phantom Black, Bucket Seats,Optic Black Pack, MRC Stage 2,+ DSG Remap, Forge Intercooler, Autotech HPFP, HG Motorsport Intake Pipe, BMC Airfilter,Powerflex Gearbox & Dog Bone Mount Inserts, Fully Decatted OEM Exhaust, 443Ps 777Nm,8v 8 Pot Calipers,Reyland 2 piece Discs & DS2500s All Round,Bilstein B14, 034 ARB.MPS4s,VCDs User.

#19
0120raptor

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Ah okay, maybe Audi ones it is then

Aaron

Aaron

I have a pair of Scorpion secondary decat pipes for sale. They are only 3 weeks old.I have ordered the sports cats from Scorpion to replace them.

The trouble is if you have both secondary and gutted downpipe when stopped in traffic with the wind in the wrong direction you get choked with the exhaust fumes. They`ll be available as soon as Scorpion get mine built, probably mid June . 50% off new price. PM me if interested. 


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