Impressions of the GLI / Audi TT brake upgrade kit for MKIVs?

deezelpower

Veteran Member
Joined
Feb 18, 2004
Location
Martha Lake, WA
TDI
2004 Jetta TDI, 2015 Audi Q7 TDI
Having had them for 9 months now, I've noticed no MPG loss. Just returned from a 2400+ mile roadtrip from WA > SoCal > WA, averaged 46-47mpg @ high interstate speeds, with 16" 205 winter tires+studs.

33k miles later, and still loving them!
 

Seatman

Top Post Dawg
Joined
Apr 23, 2010
Location
Scotland
TDI
2014 Skoda rapid elegance 1.6 cr tdi
Going to the 288's or 312's is good, one thing is the size of the brake pad, it's like twice as big on either compared to the 280's. When are you doing the rears? I went with the 256 vented, if they come of any of the front wheel drives they fit straight on, just callipers and carriers, the 4x4 car brakes can be used but need spacers due to the carriers.
 

deezelpower

Veteran Member
Joined
Feb 18, 2004
Location
Martha Lake, WA
TDI
2004 Jetta TDI, 2015 Audi Q7 TDI
When my rears wear out, I'd like to replace them with vented R32 rears. It's an awful lot of money to spend though, seeing $800'ish just for parts. Haven't decided yet.
 

Seatman

Top Post Dawg
Joined
Apr 23, 2010
Location
Scotland
TDI
2014 Skoda rapid elegance 1.6 cr tdi
When my rears wear out, I'd like to replace them with vented R32 rears. It's an awful lot of money to spend though, seeing $800'ish just for parts. Haven't decided yet.

OUCH! That's a hell of a price.
 

Pat Dolan

Veteran Member
Joined
Apr 19, 2002
Location
Martensville, SK
TDI
2003 A4 Variant, 2015 Q7
When my rears wear out, I'd like to replace them with vented R32 rears. It's an awful lot of money to spend though, seeing $800'ish just for parts. Haven't decided yet.
Because you are towing, your choice of more brake makes perfectly good sense.

For those who are NOT, I hate adding any more pork to the already chubby bits of unsprung weight on the MkIV. I was finding the original discs and pads not wearing evenly any more, or working that well for that matter. Just for jollies, I went with drilled Zimmerman (Brembo) rotors and Tekstar pads (although everyone afterwards told me I should try Akebono). Not only was the difference dramatic - and continues to be impressive - but in reality what one is really feeling is simply lower brake pedal effort vs. perceived acceleration. The OEM brakes are far more than adequate for a 100 or so HP car.

Granted, at 200 or so HP, it really would be time to look at some more disc size - at the cost of a lot of weight. Now, if someone would just make a 288 mm carbon composite set, we could have our cake and eat it too.
 

duwem

Veteran Member
Joined
Apr 11, 2012
Location
Wi
TDI
2002 Golf GLS TDI 5 Speed
Buddy of mine has a 337 Golf that I drove once, stops way quicker than mine does.

Anyone using used parts from someone parting a GLI/337? Seems a used set runs about $600 +/-100 plus shipping
 

Pat Dolan

Veteran Member
Joined
Apr 19, 2002
Location
Martensville, SK
TDI
2003 A4 Variant, 2015 Q7
Buddy of mine has a 337 Golf that I drove once, stops way quicker than mine does.

Anyone using used parts from someone parting a GLI/337? Seems a used set runs about $600 +/-100 plus shipping
I have yet to find a production car that wouldn't lock the wheels with its stock brakes - so any quicker stop is a function of tires, not brake size.
 

mike

Veteran Member
Joined
Sep 28, 1999
Location
New England
TDI
2015 Q5 Tdi, RIP 2003 Jetta GLS 5sp
I have yet to find a production car that wouldn't lock the wheels with its stock brakes - so any quicker stop is a function of tires, not brake size.
bravo!
I concur.
Think about it...
 

gallaj01

Veteran Member
Joined
Mar 25, 2008
Location
Madison, WI
TDI
2002 Jetta Wagon TDI GLS, 2001 Jetta TDI GLS, 2017 Golf AllTrack
I'd stick with the VR6/1.8T brake upgrade to be honest. The only other thing I'd do is the REAR upgrade from the GLI from solid rotors to vented discs..
+1

I like the VR6/1.8T front brake upgrade with performance pads. Plenty of stop power but able to retain 16" wheels and some 15" OEM wheels (I use 15" Avus wheels for winter set-up). Also better sliding mechanism (no more filing corrosion off the spindles pad guides!).

The rear GLI/337 rear vented brakes are an easy upgrade and well worth it IMO. I upgraded these before upgrading the front and did notice a difference in braking. Also, I had to use rear spacers to get my 15" wheels to clear these brakes. Keep in mind that you will need to trim part of the old heat/splash shields off to accommodate the larger and thicker rear discs. . I have the proper brake shields for the GLI/337 rear brakes, but I am waiting for a rear wheel bearing to go bad since you have to pull off the rear hubs to replace the shield :confused:
 

trailhead

Veteran Member
Joined
Mar 9, 2013
Location
Don Valley Toronto
TDI
05sPD-BEWagon "Diesel Girl"
I'm just about to commit to a GTI/GLI 312/256 set. I'm concerned about clearance with 16" wheels? Also, is there any difference in the master cylinder between my wagon and what would have powered these brakes in a GTI/GLI?

Thanks
 

dremd

Veteran Member
Joined
May 31, 2007
Location
South Louisiana
TDI
06 sprinter. 03 jetta wagon premium with 6 speed ALH swap, 14 JSW
I went from 280's to 288's

My opinion is that I went from 1 good stop at any speed, or 60 mph towing 1500 lbs to the brakes outperform the power. That said, I went from OEM pads to Hawk pads at same time.
 

deezelpower

Veteran Member
Joined
Feb 18, 2004
Location
Martha Lake, WA
TDI
2004 Jetta TDI, 2015 Audi Q7 TDI
I'm just about to commit to a GTI/GLI 312/256 set. I'm concerned about clearance with 16" wheels? Also, is there any difference in the master cylinder between my wagon and what would have powered these brakes in a GTI/GLI?

Thanks
I can't speak to the rear brakes, but the 312mm fronts will clear most 16" wheels on the market. I researched / googled extensively before I bought the 16" Borbets for my winter snows. I've seen references of using steelies and clearance problems though.

If you find a 16" that you really like, find a tire shop that has one in stock and then ask them to do a test fit. Most online tire shops (tirerack, discount tire) says you cannot mount 16's with these brakes, but just ignore them and buy local and test fit if you can.

The master cylinders are, possibly, the same for all of the MK4 models. Someone with more knowledge can chip in. I've noticed no issues whatsoever (other than the improved bite and sensitivity, and I run OEM pads!)
 
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