02BLKWS6MD

iTrader: (22)

Whats the best flowing catback on the market? I have a corsa catback setup right now and I've had magnaflow, slp loudmouth 1, and TSP true duals but they were too low. I was wondering if there was something out there that flowed better then what I have.

gsxr1k2

iTrader: (6)

I've got my new pacesetter Y and TSP Rumbler for 250.00 right now. Pretty much about straight through. Matt at TSP told me the almost see no difference in hp between the True duals and the Rumbler.

02BLKWS6MD

iTrader: (22)

no one else?

teke184

iTrader: (5)

what you have flows pretty well. compared to something like the LM or Rumbler you'd probably only see 1-2hp in all reality.

but the BEST flowing catback would be the 4" mufflex...assuming you put a good muffler on it. i think they come with flowmaster

TXZ28LS1

iTrader: (5)

i think best flowing would be loudmouth!!! but magnaflow and hooker catbacks are good catbacks as well.

SS1875

iTrader: (34)

My Borla flows rather well....I think they are all pretty close . Would be interesting to see if there is any difference between them when installed on the same car and run on a Dyno.

dondb

iTrader: (1)

Don't forget to look at the GMMG...it's damn good

teke184

iTrader: (5)

and darn $$$


"I think they are all pretty close . Would be interesting to see if there is any difference between them when installed on the same car and run on a Dyno"

agreed and AGREED!

figure the worst flowing catback is probably the flowmaster, and my guess would be you'd still see 10hp over stock. best (3" pipe) catback would be either the loudmouth or rumber, and figure those are good for 15hp.

so with the dozens of choices, and only a 5hp range, go with sound, look, and budget.


or better yet....go TDs

2001 Pewter WS6

iTrader: (43)

I only lost 1rwhp with my Corsa compared to the cutout open in the I pipe. This was on a 383 Stroker. The Corsa flows really well...

02BLKWS6MD

iTrader: (22)

yeah I had true duals they were really nice but too low. I think I'm just gonna put an electric cutout on the car.

01 BERGER CAMARO SS

iTrader: (77)

I think borla, due to the fact you can control how loud it can be with a simple wrench or from a switch if u install an electric cutout. Tips are pretty sweet too

MYSTIC-1SC

iTrader: (14)

i would think the lm1 flows pretty well.

C_B64

iTrader: (7)

I lose 15 rwhp and 14 rwtq from a cutout to my Hooker Catback

jmilz28

iTrader: (13)

4" Mufflex will flow the most, period, most power potential. They are NOT stainless so will rust eventually and have no tips.

omcar

iTrader: (10)

Magnaflow is a straight thru design and can't be beat..

SS DNA

iTrader: (7)

I think either a Loudmouth 1 or a GMMG would flow the best.

studderin

iTrader: (28)

Also think of the weight, I have a mufflex 3.5 and the thing weight like 2x with my 2OTL weights. thouse things are heavy. Same with some true duels, some of you guys have 70-80#s systems

When I had h/c on my 346, it made 460/408 thu the SLP 20tl, and 466/410 with the 4inch Ipipe open at the end of the TA. Over the smooth blend to 3.5 over the rearend, then 3.25 into the mufflar.

01ssreda4

iTrader: (96)

^^^yeah catbacks with full size mufflers can get heavy. i can disconnect my 3 inch duals at the header and hold it and it seems about like thirty pounds but it doesn't even get to the end of the torque arm. the hooker mufflers themselves are supposed to flow really well. i saw a write up one time on flow cfm of mufflers and i believe it was in the top 3 in full sized mufflers.

jmilz28

iTrader: (13)

wrong - 3" will not outflow 4". I love the magnaflow but math doesn't lie.

J-Train

Bigger is not always better, flow more yes, but there is something to be said for a little back pressure, depending on mods to the car, 3" may make better numbers than 4"