Custom Exhaust

[DocDuvi]

Anyone done a custom exhaust on their Ti since i cant reall y find a deal on a cat back system
I was thinking of going custom

[BleMW]

um. custom is much more expensive.
I bought my bosal (cat all the way back) for 160$ on here one time (not typical but as an example - you may be able to get away with one for less than 250$ - a custom one, unless it's poorly constructed may cost up to 1000$.)


however, i've done one, not on my bmw.

what you will need to do (since i don't know emission law in florida)
is research what materials can be used. You then select either the piping or tubing (weird but done before) you would like, constructed from the material.

You will then need to construct an adapter to your cat

you will then need to decide how you would like this attached. I suggest welding metal hangars which will "plug&play" into your vehicle's frame or need be welded.

keep in mind that you may or may not get the result you were after unless you take consideration of accepted air circulation models. If it's a straight back tube, dependant upon the material, it may be VERY loud.

[pnosker]

Or... much easier route: take it to an exhaust shop

[pdxmotorhead]

I had a full system custom welded on my Jeep with all top line parts and it cost < $800. And its a way harder setup to build....

Not stainless though...

Dave

[BleMW]

Originally Posted by pnosker

Or... much easier route: take it to an exhaust shop

i think that's TOO much easier

[FATHER]

In the TI i use a custom exaut and header, all with muffler about $300.00 2inch diameter

[DocDuvi]

hey father wasup what part of PR you from im at Trujillo right now for about a month in my parents

anyways is 2" good enough for the ti

[BleMW]

Originally Posted by DocDuvi

hey father wasup what part of PR you from im at Trujillo right now for about a month in my parents

anyways is 2" good enough for the ti

you should go 2.25"

[iking3i]

WELL I TOOK MY CAR TO THE LOCAL MUFFLER SHOP AND THEY CUT OFF THE PIPE JUSS AFTER THE SEC O2 SENSOR. THEY RAN A STRAIGHT 2.25 MASTERFLOW PIPE TO THE BACK TAKIN OUT THE RESONATOR AND WELDIN ON THE ENHAUST. HE DID A GREAT JOB. HAVE NO PROBLEMS WAT SO EVER AND ONLY COST $80.. REGRET TAKING OF THE RESONATOR THO...

[pnosker]

No caps please, but which exhaust did you use?

[iking3i]

you can weld on any type of exhaust... i just put on the one my friend gave me.. its a univeral re-active exhaust.. its not the top of the line.. but sounds awsome.. if i were to keep the resonator on it would have been even better..

[FATHER]

No i live in Carolina and is true i use 2.25, sorry, it make a loud sound and great performance but i sold muy Ti about 4 months ago, because i was mariage and i go to be father coming soon

[campaiar]

Great timing for this post....

I just had my cats and resonators taken out at lunch. Its a little too loud now, so I'm searching for new muffler options.

[pnosker]

How much do you think a stainless cat back would run, if it used the stock hangars and I had my own muffler and resonator?

[weezer]

I did a similar route with my previous car (92 Audi 90 2.3L Inline 5) and regret I did that. I went to a muffler shop and had the guy took out the resonator and replaced it with a straight pipe and kept the the rear can. It sounded way loude than I expected it; too much droning in the 2000-4000 rpm range, and no good for cruising on the highway. It was cheap, and it gained 10hp when I dynoed it; cost me only $75.
I still think, for the money, The Stromung is the best buy on the market. A Straight through construction, full stainless with 2" piping and three inch resonated tip.