Zer0 Cylinder

alright, they have like 4 presilencers....certain years, n/a, mt, at.......whats the difference?

say you were getting custom exhaust welded, would it really matter which ones you had?

any better than the other?

thanks!

Zer0 Cylinder

^^^

Ocelot

I think the N/A ones are more open than the turbo ones, but don't quote me on it. Might as well just get the one thats made for your application though.

Zer0 Cylinder

haha well, if i an automatic, planning to convert to manual, and making a custom true dual.......

i mean i wanna know what the differences are before i pay $50 too much, if the cheaper ones would work the same.

poor_red_neck

wait... they have a different one from MT to AT? Are the exausts on the automatics the same?

shiftnmadkwik

transmission is a different size slightly between the auto and the manual, the 89+ doesnt have a back pressure tube or require the air pump to be removed, whereas the 88- does, i think the downpipes are different lengths between the auto/manual to clear the transmission.

the turbo ones have different flanges. i think
... holla!

shiftnmadkwik

zero, the rb site has instructions for doing a dual resonator setup kinda... here:
If you are planning on using two (2) Power Pulse Presilencers in conjunction with our Road Racing Header for a long primary system on a 1989-92 6-port engine, we recommend using two (2) of our standard presilencers (Part No. 16400) used on 4-port engines.



btw the convertable is also a different shape, probably to clear more bracing