5k6

iTrader: (19)

I searched and did not find a definite answer. Is there a HP difference between a resonated test pipe and a test pipe? I have a HFC and want to know what I should go with.

fsugatorbait

iTrader: (16)

If the resonated test pipe doesnt taper than there is no difference.

Zeus

iTrader: (66)

I've not seen a difference with the Megan resonated delete pipe vs straight... however, it has no taper, and is perforated in the proper direction (away from flow).


BTW It's not a shameless plug... I don't sell them separate, and Megan is out until mid to late this month... I think.

5k6

iTrader: (19)

btw zeus will the megan catback fit the IX?

fromWRXtoEVO

iTrader: (18)

I personally have a collection of all: two 3"HFC, one resonator test pipe and one straight test pipe.The resonator test pipe can almost flow as much as a test pipe but the main two handicaps to this matter is that the some resonator test pipes have smaller diameter and also the resonator cavity disturb the flow a bit.

This is just my observation. As far is performance go, this is how I personally would categorize:

cat delete straight trhough the most boost and flow
resonator cat delete lesser flow but still better than a HFC
3" HFC good flow but slows down spool up and boost


my .2c

Carlos

shbomb8188

iTrader: (23)

does megan's resonated test pipe fit all aftermarket cat-backs and dp's or just megan parts?

Warrtalon

iTrader: (6)

It fits pretty much everything. It's not even an issue of fitting...the flanges just need to mate up, and that's pretty standard.

accident

iTrader: (60)

how much quieter will it make it over a straight pipe?

fsugatorbait

iTrader: (16)

Not much. I had the older style resonated TP that tapered in the middle to ~2.5 inches. When I put on a standard TP the volume increased slightly and was not as deep, but it would be hard for a 3rd party to tell.

Vroompsh

iTrader: (5)

i've had both, i agree that the megan pipe sounds a bit deeper, but the test pipe flows better i think

Zeus

iTrader: (66)

I'd like to see the flow bench numbers please... that is unless people are just speculating...

anjapower

iTrader: (18)

The resonated one definitely sounds deeper and quieter.

As far as flow there shouldn't be much of a difference if the ID is the same throughout.