Fitment of Exhausts

[ORCoaster]

Does a 1.8 8V exhaust fit on a 1.6 NA diesel?  Seems like all these exhausts are about the same.  I got a line on an entire system, 4 into on header, exhaust pipes, cat and muffler from an MK1 Cabriolet.  Will it go on the Rabbit.  Big price reduction and in new shape. 

Let me know so I can buy for Christmas or let it pass to another.  Thanks.

[rabbid79]

I think it will fit just fine.  I put a 4-into-2 manifold and then 2-into-1 downpipe on my 1.5D no problem.  I think the thing you might have to worry about is if it hits the shifter linkage.  I can't say for sure where the hanger locations are on a cabriolet, but I'd image they're the same as your car.

[ORCoaster]

The Pictures the seller has lead me to believe there will be no trouble.  I plan to take a spare exhaust mani over to be sure that part fits.  I thought the Cabrio routed down the same side as my Rabbit.  Passengerside underneath. right side of linkage.  Will be nice to have 2 inch flow if it does fit. 

[R.O.R-2.0]

unless its a NICE header, its gonna hit your steering rack...

[burn_your_money]

And if you look at the used header where the rack would be when installed, if it's nice and shiny or covered in surface rust (depending how long it's been off the car for) you'll know if it will hit or not.

Both are built on the A1 chassis. It will fit.

[R.O.R-2.0]

And if you look at the used header where the rack would be when installed, if it's nice and shiny or covered in surface rust (depending how long it's been off the car for) you'll know if it will hit or not.

Both are built on the A1 chassis. It will fit.

thats a great way to tell if it hits or not... provided both cars have the same motor mount adjustment..

the car i got my header off of, was a gasser, and it never hit..

then i put it on a 1.6D car, and it hit the rack every time i wanted reverse, or coasted in gear..

they dont always hit..

mk1 4dr gas, fits fine..

mk1 4dr diesel, hits the rack..

[ORCoaster]

OK, I bought it tonight.  Even gave me the exhaust gaskets and nuts to hold the header on.  Brand spank me new.  Seller said about 500 miles on it.  I also got the bracket that goes from the header to the side of the transmission.  So maybe it will clear linkage just fine. 

It came with a high flow cat on it.  Question is; do I install as is or just section it out with a couple of flanges on a short pipe?  Not sure what effect the soot in the diesel will have on the cat itself.  I could possibly sell it here if I don't need it on there. 

What the verdict?  Install as is or, remove and replace with straight pipe? 

Also got a windshield for 50 so I can quit worrying about the crack going up the  middle now. 

[R.O.R-2.0]

DO NOT INSTALL A CAT ON YOUR DIESEL!!!

[ORCoaster]

Well that is a pretty plain answer.  Thanks Kev

[R.O.R-2.0]

Well that is a pretty plain answer.  Thanks Kev

you're welcome <3

[ORCoaster]

But don't the big arse Fords and Dodges have them on their engines?  Are they not needed on our weenie 4 bangers?  Do they plug up so bad they defeat the bigger pipe diameter flow? 

Explanation please.  I just can't brain on this tonight. 

[R.O.R-2.0]

But don't the big arse Fords and Dodges have them on their engines?  Are they not needed on our weenie 4 bangers?  Do they plug up so bad they defeat the bigger pipe diameter flow? 

Explanation please.  I just can't brain on this tonight. 

the newer ford/cummins/GM trucks have diesel particulate filters, not catalytic converters..

they are basically a cat for diesel exhaust..

the gas cat will clog with soot in no time.. it will also restrict flow.. there is no such thing as a cat that DOES NOT restrict flow to some degree..

WHY do you want to install a cat on your diesel?

the only VW IDIs to get a cat, was the ecodiesel.. and it clogged with soot as well..

[burn_your_money]

the only VW IDIs to get a cat, was the ecodiesel.. and it clogged with soot as well..

And AAZs in Canada. Like Kev said, don't do it.

[theman53]

If you have laws that state you have to have a cat, I recommend this one    

It is a NON cat, but looks like it and doesn't restrict flow like the ones ROR is talking about. Plus it makes me LOL

[ORCoaster]

Guys,  I don't need a Cat on my car.  I know that.  It is just that the header, exhaust system, muffler, tailpipe combo I picked up across town was from a gasser and IT had the CAT.  I wasn't sure it would prevent flow but I have been set straight on that.  Particulate Filters?  Odd they still refer to them as Cats. 

So My take on this is get a piece of pipe to span the distance and let er rip?  Or do a resonator to defeat the highway drone noise?  Most all miles are highway for me. 

More Opinons welcome.