should actually cut the small pipe off and reweld it so that it doesnt go all the way through the big peice

then you might get a bit of a power gain as the exhaust gasses are still sorta getting out, rather than going to a dead end then having to find there way back to the small hole

anybody remember the early Cortina in Street machine witht he big block in it.. that had the straw out the back.. ha ha it had hubcaps venetians the whole deal..

maybe it's worth pointing out that I made this pipe only to keep the car quiet. As you can see I already have a "high flow" attachment that can go on if I'm after the extra power.

It's basically a solution so I can drive the car around and not worry too much until I add a cat and extra muffler into the 3 inch pipe.

Most of you will know how hard it is to find space for mufflers under a 1200 sedan, let alone trying to find a place for a cat and still keep it high enough off the ground

Wouldn't the huge back pressure affect more than the performance?

Like what?

I suppose there's going to be more flange leakage but I don't imagine it would perform much worse than the stock silvia pipe. I think they came out with about a 2inch exhaust but mine is still 3 inch from the turbo down to the diff which gives the gases time to contract before they have to go through the small pipe.

I dont know maybe higher valve temps and as a result valve seats burning out?

i have a car mag somewhere that has an SR20det in a 1200 coupe with the same setup that kululadotgroen posted up. i'll try and find the mag.

Yeh but he would loose the sleeper look. Coz if you see a pee shooter your not gonna expect a run for your money are ya?

who looks at the exhaust anyway

bogan falcodore drivers so they know weather to back down or not to avoid humiliation

Use the big pipe but cut it short and leave the pee shooter hanging out/ out of sight out of mind theory.

Yeah I'd sugest keeping the little pipe connected to a side of the big one without the reducer so that when your standing near it it's still pushing some exhaust out, so as to keep confusing people