TheSamba.com :: View topic - Empi Exhaust-J tubes install

Thu May 29, 2025 3:16 am

Trying to install a new exhaust from Empi.......Yeah.... I know :(

Have J-Tubes and having a hard time lining up the tubes to the exhaust.

Besides using heat to bend these suckers has anyone used band clamps to mate the jtube to the exhaust??

https://www.amazon.com/JEGS-30732-Preformed-Exhaust-Clamp/dp/B078WJMP15

The jtubes do not even want to slide into the exhaust. Very frustrating

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Thu May 29, 2025 4:12 am

Band clamps wont work even if you founf them in the smaller VW sized exhaust.

Is the OD of the J-Tubes too big or is it just alignment? If too big them you need different J-Tubes, what exhaust was on it before the EMPI purchase?

I always have the J-Tubes or Exchagers off, first mount the extrator/mufler with nuts started but loose, then slid the J-Tubes/Extractor in and start the nuts. Then start tightening everthing up.

Thu May 29, 2025 4:28 am

I just noticed that my Tubes do not taper at the end. I had these in my parts stash. These have the tabs on them for the sheet metal. I may order a new set that taper on the end and will fit inside the exhaust.

Its a 75 Super, no FI and no heater boxes.

It had a custom exhaust with a flow master and was loud as heck.

Thanks for the reply

Thu May 29, 2025 7:14 am

Not always, there are J-Tubes made in 1-3/8" tube that fit stock, the J-Tubes made from 1-1/2" Tube are necked down to fit 1-3/8 stock size. The J-Tubes you have now may very well be 1-5/8" diameter for performance exhaust.