Contour Enthusiasts Group Archives Forums Modifications Duratec Performance Sho Shop Exhaust Setup

We have a Cat and then a resonator... Cat comes before resonator...

Mysticali- Personal preferences I guess. The topic of sound was not mentioned. Only performance per $$$. You are correct, it is loud but not raspy.

Mine rasps like a SOB with the Bassani. I guess having the resonators in the tips and not in the single pipe of the cat back is to blame. Only rasps when cold, so I can deal with it for 5 minutes every day.

PA- thank you 5 min of rasp and then sweet sounds.

OK ... I have read just about every resonator post. It comes down to two choices: Edelbrock 5503 and Dynomax Bullet 24215.

Which one sounds better with the the sho y-pipe + cat and the stock SVT exhaust?

My concern is that I may want to do a catback system down the road. Some have posted that the Edelbrock may not be compatible with this plan.

Just curious, with y-pipe, new res and stock exhaust, how much more performance would catback bring for the buck?

Thank you all for your help.

For anyone who is interested, I called Sho Shop to ask some questions.

1. The y-pipes with cat are in stock, so not wait.

2. I asked about the hi-flow resonator they have and why it is $119. I was told that this is a prototype project. Apparently it is something completely new. Details will be posted on their site in about a week when the kit is ready.

I might take the bait and try it as long as I am ordering the y-pipe.

I have sold quite a few different resonators to numerous CEGer's either building a new Cat-back or just trying to get rid of rasp or drone.
The Edelbrock is a nice piece, but it is heavier than most due to it's ceramic packing.
Now I and other run Magnaflow resonators. They are built well, are costed right and come in many more different sizes than say the Dynomax Bullet which the smallest is 2.5".
Magnaflow make 2", 2.25", 2.5", 3" and 4" resonators varying in lengths of 14" 18" and 22" and cost $57, $62 an $67 dollars for the respective lengths, regardless of size of pipe (except for 3" and bigger).
For me to ship them to you, add another $7.

Also if I order $300 of parts at once. I get free shipping from MAgnaflow to my distributor, so I tryin to bulk order whenever I can. So if you and some other want a resonator let me know.

PS stainlees if for people with too much money. The Aluminized stuff from Magnaflow is pretty good, plus I always paint my exhaust with high temp temp so it's protected well (and I live in MI, a part of the salt belt!). I only recommend stainless for the rear most mufflers as they are almos always visible and also tend to get blasted by road debri, this is an instance where Aluminised would suffer.
Everything else under my car including pipes is aluminized. (Mind you my flex pipes and X-pipe are stainless as they are only made this way due to the heat they are prone to be subjected to).

Flyer - I've twiddled with my exhaust a lot (too much) and I say this to you:
If you're planning on a catback down the road, replace the resonator with whatever's cheapest. Save the $.

BTW, I rolled my own, and I felt a good gain when I added 2.5" piping after the y-pipe.