At last! A proper DPF delete.

**gldgti** · 21-08-2009, 10:28 AM

Originally Posted by benough

Agreed but Mischa and I were thinking about it some more.

Can the drivetrain handle it? I wouldn't do it if I had DSG. Also the the clutch gonna wear out real quick?

Also if I did it I would upgrade ALL of the engine mounts.

the dsg is a grey area, but the manual box should be ok - clutch will only wear out if you slip it.... and if it starts slipping because of too much torque, well, you'll have to upgrade

**benough** · 21-08-2009, 11:53 AM

As Franklin D. Roosevelt said "With great power comes much wheelspin"

**Greg Roles** · 22-08-2009, 01:10 PM

A clutch upgrade would be smart.

Did some research on this, and it seems the DPF removal itself is worth about 15hp, and the rest of this powerup is due to some sort of tune which includes removing the DPF regeneration cycle.

Exhaust temps apparently become an issue beyond this sort of power, but I'd bet with no DPF, the turbo would spool up far quicker, the overall temps would be lower, and there would be a nice improvement in economy. That kind of balances out the fact you'll be putting out more particulates, but using less fuel overall.

Only downside is it's only a matter of time till they start measuring particulates on diesels, and this would be very obvious. Still great news for us DPF types.

**gldgti** · 22-08-2009, 02:38 PM

Originally Posted by cogdoc

Only downside is it's only a matter of time till they start measuring particulates on diesels,

i loath the day

**benough** · 24-08-2009, 11:58 AM

Originally Posted by cogdoc

A clutch upgrade would be smart.

Did some research on this, and it seems the DPF removal itself is worth about 15hp, and the rest of this powerup is due to some sort of tune which includes removing the DPF regeneration cycle.

Exhaust temps apparently become an issue beyond this sort of power, but I'd bet with no DPF, the turbo would spool up far quicker, the overall temps would be lower, and there would be a nice improvement in economy. That kind of balances out the fact you'll be putting out more particulates, but using less fuel overall.

Only downside is it's only a matter of time till they start measuring particulates on diesels, and this would be very obvious. Still great news for us DPF types.

If the DPF is only losing 15hp then it really isn't that huge a hinderance as I had previously thought.

So are you saying the 240hp on the customcode website is not a "DPF delete + Stage 1 tune" but just a "DPF and regen cycle delete tune"? If that were so I assume that this wouldn't put any increased stress on the engine like a "Stage 1 tune" would.

Also when these cars come out of the "3 year no need for a rego check" period will the DPF be on the list? If catalytic convertors are checked I can't see why a DPF wouldn't be.

**GoLfMan** · 24-08-2009, 01:03 PM

It'd be a dam shame the day they start checking on soot emissions. But honestly I dont know how they could possibly police it.

if I had a GT I'd be doing this ASAP!

except I cant find a second hand one!!!!

Seems people are holding onto the dam things!

I hope that this chip and DPF delete will be available for all other VAG cars with the same engine?

**Greg Roles** · 24-08-2009, 03:13 PM

Nothing is certain as I took the 15hp from a UK Seat forum post as it was the only real specific thing I could find. In my opinion the considerable fuel economy increase tells me it's a major restriction. There are similar impressive gains in the states when guys ditch their DPF off their pickups.

I'm sure Gavin from Custom Code will get us the actual figures shortly.

Golfie, the fact that DPF's are now a requirement tells me getting rid of it altogether needs to be carefully calculated. The states are about to make retrofitting DPF's to older diesels law, and we'll follow at some point.

**benough** · 24-08-2009, 03:18 PM

Ok cool.

Were people doing this when catalytic convertors were new?

Also did catalytic convertors inhibit the exhaust flow when they first came out and did they evenutally mature enough so that they don't inhibit the exhaust flow anymore?

My point is that our DPF's are the first generation? (correct me if I'm wrong) and wouldn't they be likely to mature?

Maybe when my DPF packs in it I can just install a good one from a secondhand MK8 Golf

**Greg Roles** · 24-08-2009, 06:34 PM

DPF differs dramatically from a cat, ( the DPF canister actually has a portion of cat in it ) but where a cat is a large number of small, straight through "straws", your DPF has all dead ends, the exhaust is forced through the ceramic walls thus trapping the soot, and then finds it's way to an outlet. It's nowhere near as good a flow path as a cat, and massively more restrictive.

Hopefully yeah DPF's will get better. With a rrp of $5000, you really going to be upgrading?

The MK6 diesels have even more anti pollution gear than we do, and I can't see Mk 7 or Mk 8 getting any simpler sadly.