BR02SS

I really like the mufflex catback but is there a noticeable gain in hp to make it worth it.

HCI2000SS

iTrader: (2)

A catback alone might get you 5-10 hp, but nothing that you will probably notice

BR02SS

Well I have headers ory pipe and then just a magnaflow muffler it sounds good just a little to quiet for me

lemons12

iTrader: (71)

If that is the version with the good merge and 4", then yes it is worth it power wise.

bwilde86

iTrader: (5)

Just do a cutout before the magnaflow

BR02SS

I thought about that but I don't like a cutout at WOT

lemons12

iTrader: (71)

Magnaflow flows good, minimal gains to be had with a nice merge.

BR02SS

I bought the car with the setup that's on it. Looks kinda homemade to me after the ORY but I think the exhaust on ls cars are weird anyway. So I don't guess I know what to look for as far as a good merge is concerned

lemons12

iTrader: (71)

Post a pic.

Blk98Vert

iTrader: (2)

Stay away from the Mufflex with the Spintech muffler, thats on par with the Flowmaster for the worst flowing catback

lemons12

iTrader: (71)

I thought the mufflex was the nice merge with a 4" I?

i might be thinking of something else. I have been out of the bolt on world for so long.

Blk98Vert

iTrader: (2)

It is. They have the Flowmaster merge Y pipe which is great. But Mufflex uses 3 different mufflers. A Flowmaster which is from what I understand also pretty bad, a Magnaflow which is just a straight through muffler which is great, and the Spintech mufflers which are crap. I remember a few years back I got in an argument with a friend about this and was able to pull up multiple threads about losing double digit horsepower/2 tenths+ at the track

BR02SS

i will get the car up on the lift tomorrow and take a picture of whats on it right now.

So pretty much stay with the magnaflow

Blk98Vert

iTrader: (2)

If you buy the kit from them yes, do the magnaflow.

BR02SS

I will check that out

Blk98Vert

iTrader: (2)

hawks third gen also sells a 4" catback with no muffler so you can add the muffler of your choice or no muffler at all.

Blackpanther99

iTrader: (8)

Just go Magnaflow on the 4".