I agree with the points raised by Greg.

The 928 was an expensive car new, and producing new parts is not going to be at a discount for Porsche (low run rates and high margins).

Parts have lasted well considering its age. A 91 is 31 years old now and the 95 is 27! The parts have really held up well considering age and mileage of many of those cars on the road. Doubt you can find another car of that vintage holding up so well.

Just use the GTS liners and stuff them in, they will do a world of change in NVH department. Also note that the new parts use newer material (that I hope is as good or better) than original.

 

The new liners basically suck.

If your old liner is still more-or-less in one piece do this: https://rennlist.com/forums/928-foru...ix-update.html

 

+1 @worf928 - completely agree. Buying that POS part was the triumph of monopoly over the little guy. It simply couldn't be made to fit. I cut the heck out of it and barely got it in. None of the holes were even close and the thing had to be stretched to get it into position. And by the way good luck to the GTS people because it wasn't' even wide enough for the S4. Very very poor performance from a $500 part which, by the way, is nothing high tech - it's a vacuum molded plastic sheet. I'm not sure what to say ti those who excuse Porsche, a $multibillion octopus, from basic quality expectations.

By the way, while the taillight harness was an extortionate $450, at least it fit.

 

Absolutely!!!

Sound that never enters the body, is sound you dont have to work 100x harder to manage IN the body..

 

This doesn’t fill me with confidence as I’m breaking out the tin snips today to see if I can make it fit.

Still think I may have the older part - it’s definitely too wide so the comment that the part supplied now isn’t even wide enough for S4 doesn’t compute with what I have!

 

So, how does this flopy foam rubber thing mount into the well?

 

Every replacement liner is different from the last replacement liner it seems.

Expect that at least one hole won’t line up. Typically the holes for the plastic push-pin style fasteners are the ones that don’t line up.

Prepare to reform, with a heat gun, portions of the liner where there is close proximity to the wheel to avoid rubbing.

Plan to inspect the liner carefully after the first drive to determine what reforming, if any, is required.

 

Very accurate Dave (more accurate than the liner)! I trimmed a strip from outer edge to give me fighting chance of squeezing it in. It's an OK fit with the top holes lining up, but getting all the other holes lined up is like waiting for stars to align! If the push pin holes are lined up square to the holes, then it's a stretch to get others in correct position.

I'm getting some new hardware tomorrow so will put screws in loosely and see how much stretch is allowed to reach all the holes. Thanks for warning about checking for wheel rub.

What a performance just to install a liner, but at least the new one isn't falling to pieces, and that thick new foam's an improvement.

Here's to Porsche Classic remanufacturing 1991 liners! Don't hold your breath.

 

At this point the “Flex Seal” fix is better than a new liner as far as I’m concerned as long as the original liner doesn’t have chunks missing.

If the new part actually fit, then I’d not have this opinion.

 

I finished installing the liner today. I was able to line up all holes except one (upper hole in first photol) only by stretching the liner. When i did that I found the wheel would rub against the liner! It was OK when i removed the two screws at bottom of forward side of liner, and used hot air to push the liner material back where it was rubbing (would probably have been ok just removing the screws). I took the first photo below while those screws were still in. Forgot to check for rubbing before driving off so was only alerted by unhappy sound as soon as she was rolling!

You can see from the photos that it's not a great fit, with a gap at bottom of lower rear 'ear' (odd as nothing trimmed away at bottom, and the position is set by the slot that fits around bracket on car). The original had a moulded depression to fit over the peg at the inner rear of side rubbing strip. The new one had no such moulding so I chopped a piece out around that peg (4th photo from top), otherwise it was pushing strip away from car!

On test drive it's wonderfully quiet in that corner, so that's something.

But it's not ideal having no screws at all securing forward side and having that gap. I could try to make new holes in the liner to match the speed nuts, but not sure they'll be access from behind to mark where they should be made. When Roger says he's fitted hundreds with no problems including S4 then I know he's speaking from experience, so I think I got a bad example or maybe the date sticker was wrong and it was an earlier GTS only liner all along. I'd like to replace the left side too (it's great having new sound-absorbing foam) but I'll wait to hear more positive reports about whicjhever liners Porsche is selling now before buying a new pair.

 

A fiver for a set of ear buds for your mobile phone is a way cheaper approach-

I must see if Iatera thinking appraoch can trump you for 20 quid of less!

Well done!

Fred