I currentally have a BR 3 inch turbo back with a bullet muffler where the cat was and a bullet muffler on the end. Im going to be up grading my stock o2 housing to eather a EPM o2 dump or a Invidia hi flow o2 housing. What do you think the hp/tq differnce would be between the two.

Current set up
Stock turbo all the bolt ons 93oct (meth in 2 weeks )

I herd the EMP dump helped make much more tq?

 

My personal favorite is still the Megan. I don't like dumps b/c they are so loud at WOT (had one on a DSM) and the Megan has been proven to make more power than the Invidia.

 

With your setup (stock turbo on methanol), WG will be mostly closed during peak torque so dumping of WG isn't needed. But near peak HP when WG opens (either boost control or psi on turbine) the benefits of the EPM will be had.

So to answer your question, and I can only assume this, there will be no improvement of torque but great improvement of HP

 

What test did you see that says the megan makes more power. I have been considering the invidia / an O2 dump but would like to see more data. Thanks.

 

Search around for Buschur's dyno test; he tested quite a few and settled on the Megan/eBay version.

 

If I recall correctly the invidia is the least amount of gains out of all of them! If you go with the o2 get a titek they make a good product.

 

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