If you're not supercharged, I'd suggest stock 2.25" piping and a 30" straight through magnaflow. Definite increase in top end power with minimal low end loss. The sound is slightly louder than stock with 2.25" piping, with a nice low growl on acceleration, very sporty aggressive sound at WOT, not ricey.

2.5" piping IMHO is not necessary on NA motors and will drone for sure. I have the suggested Magnaflow and 2.5" with an upgraded s/c and it still drones with a hint of rice below 2500rpm on acceleration, but won't drone on highway or higher speeds at all. I'm gonna put a resonator on since I'm only going for the performance bennies.

IMHO the difference in piping does make a difference. Not only in exhaust tone, but also in low end torque loss and overall flow. I had both sizes with the 30" mag and it's noticeable. I stuck with the 2.5" after seeing hp went up by 10-15hp across the board on the dyno, and that's with forced induction.

 

You should post a pic of the papers.

 

SO....from what i can gather...18" MAGNAFLOW with stock 2.25 piping seemz to be the best liked so far......

 

i will be replacing my flowmaster super 40 with a magnaflow. nuf' said.

 

My muffler shop put on a of the shelf turbo muffler never did say the brand, couldnt tell a bout power as the truck was new to and never drove it till i rebuilt the 22 re but a couple of years later it has a nice sound. I'm sure it was'nt a fancy one cause cat back including the muffler was only like a buck and a quarter or so.
Jim

 

Hooker AeroChamber 2.25

 

REVIVE
I'm looking to get the FM 50 soon, 2.25 I/O but what offset of the inlet/outlet should I get? It's snowy here now and I don't feel like getting under the truck to figure it out, lazy I guess!

 

I'm in tulsa as well!!! Also, go with the borla cat back thats what i got and it sounds good.

 

how much do these things usually average in price?

 

jesus guys..we're talking MAYBE one or two horsepower...you WILL NOT notice that LITTLE gain EVER...now you may notice a better throttle response..or a peppier 0-60 or something..but you'll not notice the 1 or 2 horsepower

go with whatever tickles your fancy LMAO

 

Here you go. I think they take off like 10 to 15% off if you ask. I got them to go from 10% to 15% off on my IS-F. But like camo said dont expect much hp just tone, but it sounds awesome.

http://www.autoanything.com/exhausts...0A2567782.aspx