Here is my MY2017 genuine diffuser with matching tailpipe trims the garage managed to avoid welding on the tailpipes. Basically they fabricated the 2017 exhaust trims to fit the OEM rear box and the only sacrificial element is cutting off the curve end of the pipe, So if the exhaust needs replacing you can take the trims off and reinstall.
If Mods/Admin allow I can pass on the garage details who can either supply and fit, OR supply everything (inc diffuser) and modded trims for the competent diy'er to have a go. Its a simple process IMO and pricing is cheaper than Lexus UK
This is my first post in this forum, so apologise if this is in the incorrect thread.
I bought a used Lexus IS300h from 2014, as my judgment wasn't that great, I got one without many of the features (executive model).
I was looking into a couple of things, but there is not much to be found, is there a possibility to add some of the safety features which are in the other models?
Also, I was looking at the speedometer of the f sport model, can this be upgraded after the purchase?
Just after a little bit of info. I am after a rear tyre for the IS. She currently has Bridgestone on her which is what Lexus put on her when I purchased her. I only need one for the passenger side as the other still has 4mm of tred left. Just wondering what everyone's opinion was. I am after a quiet tyre and eventually will replace the set once she needs them.
What's your opinion?
Last summer, just after I bought my LS, I discovered that one of the exhaust pipes didn't blow as strong as the other. The difference was quite significant. At first I panicked a bit, but a quick inspection LED me to discover a leak in the right back box, precisely its bottom wall, centrally located around half way length-wise. It was big enough. The corrosion was pretty bad, so I decided to get a new one.
I wanted the best solution, and thought that I should get it from Lexus, (a ton of money) or if from any other shop, it should be as close as possible to the original. The search was long an painful, and I was giving up when found a small (home business) manufacturer in Poland. They are making all kinds of custom-made muffler replacements. I pre-ordered and in less than two weeks I had both of my boxes delivered - brand spanking new as shown on the picture.
I also had a chat about my problem with the engineer from that company, who said that LS430 back box has a built-in design flaw, and that's why they all corrode and screw you up always in the same way.
Not waiting any longer I grabbed an angle grinder and the results you see on the pictures.
As it turns out, the mid-section wall has a flap on a metal spring. This spring gets exposed to pretty corrosive environment (water, and temperature), and you don't have to wait very long (I wonder how long) before it's so corroded that the flap cannot open any more. This leads ( you can guess) to excessive exhaust gass back-pressure build up, which is not very nice for the engine nor it is good for the performance. My flap was quite badly stuck closed, which also leads to excess water accumulation in the compartment before the flat, which in turns causes the bottom of the box corrode all the way through.
On the finishing note, I am happy the new boxes do not have that annoying flap, the car runs nice and quiet, so far no problems. What I discovered in this case is to me an example of typical blind over-engineering, without thinking through about materials, the environment they are working in and the consequences.
Had I gotten my brand new boxes from Lexus (for an astronomical price) , I would have had the same problem back in a few years soon....