Deepseadiver

iTrader: (3)

It's been about a week since I have requested parts! I called and sent a few PM's on EVOX boards, but still no invoice and no way to pay.

One last question. Will the downpipe with the external O2 dump fit up to the existing cat? If not, will I need a special testpipe? (is it shorter or longer, the test pipe?)

Also do you sell a test pipe that is different? a normal one that will bolt up to existing downpipe and catback exhaust?

Sorry for all the questions, I just want to know what I am getting.

dragon831

iTrader: (1)

^^^ what he said.

Also, anyone have a sound clip with an external dump?

STi2EvoX

While it is pretty common knowledge that the downpipe on the X doesn't add any power, every single test from every other company, including impartial 3rd party shops, have shown gains with the O2 housing/downpipe combo. Dave and I disagree on this, but I and many others think that it was very likely that the reason he showed no gains on that part was because A: it was an MR that was about at the limit of the TC SST's torque capacity, and B: the MR uses the airflow/torque limiter tables and airflow check tables in the ecu to communicate with the ecu in the tranny and will limit power output if the tables aren't adjusted or if the tranny is at it's limits.

Al at dynoflash also noted that an MR on his dyno with almost the exact same parts and power levels was experiencing clutch slippage. It is still unclear as to whether or not it was in fact clutch slippage, or if it was the ecu cutting power. Perhaps he can comment further on the issue. But again, every single test, including those from 3rd party shops and individuals with nothing to gain by promoting the product, have shown gains on GSRs. To the OP: do your research and decide for yourself.

STItoEVOX

iTrader: (2)

^^woo! Great, thorough answer! And might I add, GREAT username also.

STi2EvoX

^Why thank you, screen name jacker! J/K