Muffler Help

[fat-lad]

hey people, no not another problem lol

going to be making an exhaust for the s1. looking through just jap and looking at the 3'' mild steel belmouth dump pipe and 3'' catco highflow cat,

has anyone put a justjap bellmouth dump pipe on there series one?? did it fit ok??

anyone using the 3'' catco hiflow cat also??

[-RBD2-]

catco cat is ok i think,got an x-force on mine.cant vouch for the dump tho.ive got an advance dump/front pipe combo into cat into single magnaflow cannon. 3inch all the way

[66yostagea]

I have a JJ s/s bellmouth, X Force Hi Flow Cat, 3" cat back, and 3x6 cannon. No probs with fit. 3" cat back was done by GC Mufflers.

[fat-lad]

thanks hugh, shouldnt be much diffrence between stainless and the mild steel one i hope

[kidafa]

yeah the jjr bellmouth front dump is a good mod and will fit your series one. I'd get the mild steel option as its easier to heat up and re-work if you really need to... Should fit fine but every so often people have trouble with them tapping the floor or gear box support. have fun fitting it Haha dump pipes are so annoying espesh 3inch as the bolts foul on the pipe when you try to do them up.

Got a three inches catch cat myself too....... Good mod again to help get it breathing.

You will notice the most improvements out of these mods with some sort of tunability like piggybacks or an aftermarket computer. But I suggest getting your breathing sorted first so you don't need to pay for double dyno time if that makes sense.

Hope this helps

Chris

[-RBD2-]

only 3inches chris?

me too...

[66yostagea]

only 3inches chris?

me too...

Me two!

Yes getting the bellmouth on can be a pain. In a couple of places I had to use allen head cap screws.

[_Ryan_]

I have the JJR dump and catco cat, dump is a little tight on bolts, cat is a little short IIRC, but still fits.

[kidafa]

Me two!

Yes getting the bellmouth on can be a pain. In a couple of places I had to use allen head cap screws.

Yeah I should have recommended this too, have a spare car handy so when u get the bolts off you can zipp to your closest hardware store and get some hex headed bolts to suit.... They are a pretty standard thread size cos I had a few lying around in the shed from some kind off bike repair