Basic question.

Dont feel like spending on the aluminum bolted Y pipe at the moment, because there are other things I'd prefer to have.

I was wondering if anyone knew the diameter/size of silicone coupler I could use to replace the awful stock black rubber connector instead? This would be cheap and effective for me, more so than the aluminum Y pipe.

My black rubber Y pipe coupler is nearing the end of its life and a silicone replacement would be fine by me.

Thanks in advance guys

 

2.75" straight. Got mine a few months ago from Hose Techniques

You should also check to make sure the coupler from the pipe to the intercooler is in good condition.
Just found a tear in mine that was causing a boost leak.

 

Yep....and silicone will last along time with decent clamps and stock boost levels. But know that the Efini 'Y' pipe also flows marginally better too.

 

This is what I replaced mine with and just cut it to fit.


Would it be possible to be getting 170kw (228hp) on the wheels with this boost leak on a stock car with induction, down-pipe and exhaust (no software)? As far as I can remember my car was boosting .4bar..

 

Thanks guys, new silicone coupler is on its way here now.

Wow, that photo is pretty cool. Those stock rubber couplers were never going to be up to the job for very long anyways.

The Efini aluminum Y pipe is the ultimate fix, but this will do the job in the interim

 

Mine looked just like that. Was maxing out at 5 psi and the could hear the leak like it was coming through my HVAC vents