Sign in to follow this  
Followers 0
dalplex

Wanted: 451 muffler

10 posts in this topic

Hi, looking for 451 muffler. 

 

The joint between the flexpipe and muffler is leaking and it and it seems not easy to be replaced with universal flexpipe.

 

please advise the condition and cost.

 

thanks

 

Share this post


Link to post
Share on other sites

Here are 2 examples of replacement flex pipes that should work as a replacement.

 

https://www.ebay.ca/itm/1-3-4-x-8-x-12-Flex-Pipe-Tube-Stainless-Steel-w-Neck/190611296392?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055119.m1438.l2649

 

https://www.ebay.ca/itm/17510D-Exhaust-Flex-Pipe-Stainless-Steel-Double-Braid-1-75-1-3-4-x-10-Long/161466184762?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055119.m1438.l2649

 

If a shop is telling you it can not be done, they are certainly not qualified to do the work.  Any place that can weld stainless should be able to replace the flex pipe.

1 person likes this

Share this post


Link to post
Share on other sites

Thanks.

 

If the connection has a little bit of straight pipe to clamp. Yes. It is fairly easy.

 

The problem is the elbow shape connection is so short, making it barely possible to play with.

 

I will try to put on some putty and tape first.

Share this post


Link to post
Share on other sites
On 1/28/2018 at 8:19 AM, Huronlad said:

If a shop is telling you it can not be done, they are certainly not qualified to do the work.  Any place that can weld stainless should be able to replace the flex pipe.

 

Stainless welding gear doesn't appear to be necessary, the muffler and OE flange will weld decently with a mild steel wire or stick.  Booneylander and I have both done this, click here for details.

1 person likes this

Share this post


Link to post
Share on other sites

Mig welded them together after failed by bronze.

 

Then realized the alignment on the flange was off and basically can not seal.

 

So, after fighting with rear flange bolt and putting back the rear panel for 2 hours end with square back to original.

 

I think a dealer part of 485 is right choice.

Share this post


Link to post
Share on other sites

take it to a muffler shop and get them to weld it

 

find a muffler shop that isnt attached to a big corporate name....the franchised ones are usually just parts changers 

 

if you ever come north visit steve at the muffler shop on the kingsway in sudbury..."the muffler shop" is the actual name of his place ..he's good at patching up weird stuff

Share this post


Link to post
Share on other sites

Bought new assembly from dealer and installed in 2 hour.

 

The original one will be available for sale.

Share this post


Link to post
Share on other sites

Hi guys, I may be in the same boat later this year, but am thinking of making my own system using a stepped glass pack design muffler and maybe using the cats or seeing if you could remove half of it, noise depending...I do not like loud exhaust systems any more, yep, I'm old!  But, after looking at the stock exhaust can I think if you catch it before it seperates fully you could make up a "U" shaped trough and semi pinch that over the pinched area of the muffler nd tig weld it and repair the stock muffler.....yes it's all theory so far but I will be looking into it in a few months. I also saw what's inside our mufflers, plenty of restrictions which if you were to either gut them a bit or install a freer flowing can you may notice a bit more get up and go??? Especially if you installed a freer flowing air filter such as a K/N..?    The engine is simply an air pump, so if you increase the intake you must increase the exhaust flow...and visa versa......simply opening up the exhaust won't necesariloy increase the over all flow if the restriction is in the intake side also.     It's a ballancing act and you also must worry about upsetting the tuning of the engine for the computer not to get effected to throw codes at you.    I am a sick modder and always looked for HP in all my other vehicles, but so far it's just to get it to run well with a 45HP deisel engine with my new to me smart....lol.  Christ even my 650cc KLR started with less and now has more than what this has...lol.  Went from 37 to 50 HP and cost me thousands to achieve it.....sure it's fun to search for it, but also not 100% worth what it takes to get it....lol...I'ts a sickness...so hopefully I don't go down the same rabbit hole  I usually go down.   Sorry to go on.....another issue I seem to have.

 

Share this post


Link to post
Share on other sites

This thread was discussing the exhaust for the 451 (2008-2015) model.

 

The 450 cdi and 451 are sufficiently different that there are separate sections for both.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0

    Chatbox
    You don't have permission to chat.
    Load More