Contour Enthusiasts Group Archives Forums Modifications General Mods Sorry but have to ask Y-pipe how much droon/rasp

Ok i-dom-in-8, this is what i did:

SHO Y-pipe w/ cat
18" Edelbrock RPM 2.25"
stock tip mufflers

Sounds more rumbly than stock, with the same nice note (a little more healthy) at WOT. Big performance increase, as the stock res is 2" inside, and the sho y-pipe ends at 2.5". What i did was to have the shop make a reducer (2.5" to 2.25") pipe right after the cat on the y-pipe, then hook that up to the 2.25" edelbrock. BIG performance increase, prob 7-10 hp at 6500 RPM, and louder exhaust note, but very little drone. Kind of like Cardoc's exhaust sound, but a little more like a 6cyl rather than what his sounds like (8cyl, at least to me). Hope this helps.

Anyone have any experiences with Bassani and the Sho-Shop y-pipe that's got the hi-flow cat in it?

I'm worried about drone, since I run my Bassani without the tip resonators, and it's marginally close to being annoying on long hauls.

Any input would be greatly appreciated.

With the off road Y on my old tour, I was about a 12hp gain and 6tq. I have pictures of my dyno's on my link in my sig

the rotten egg smell is unfixable its the 3rd cat ford replaced mine many times on mine and my wifes car and it never went away so i gutted that cat out and no more eggs!!