View Full Version : full kooks vs slp long tubes and axle back

05-22-2012, 11:33 PM
well basicly i just put slp loudmouths on my car a week ago and now the next step for me is a set of long tubes. now i seen people going with slp and then using the factory mid pipes,and also seen alot of people just running full kooks and corsa. so does anyone now how much hp diffrents would thier be if any?
thanks jon

05-24-2012, 12:59 AM
Midlength to Longtube headers is about a 10-15rwhp difference. Much more noticeable if you plan on a bigger motor, or forced induction

I am running no cats into factory mid pipe with an x-pipe welded in into a custom magnaflow axle back. No loss of power. I'm sure a full custom mandrel bent 3in exhaust would be best, but my setup worked for now

05-25-2012, 01:21 AM
Not sure where your budget is but I am very happy with the ARH LT's and their mid pipe. No cats. Very quiet with factory axlebacks, and perfect (for me anyway) w/ GXP axlebacks.

05-25-2012, 02:05 PM
Currently run the Kooks 1 7/8 LT's and Corsa to quiet it down a bit (until I go WOT :D). No complaints here whatsoever.

05-31-2012, 10:45 AM
SLP longtubes have a terrible merge pipe from the Cat to the exhaust.

05-31-2012, 05:30 PM

05-31-2012, 09:46 PM

09-09-2012, 09:54 AM
I have 1 7/8 arh with high flow cats x pipe and gxp mufflers and it sounds awsome

09-09-2012, 07:00 PM
You can run Kooks LT's and their x-pipe (either catted or not) and still tie into your axle back. That's what I run but I'm a solo axle back. I like it loud!

09-09-2012, 10:49 PM
well im thinking just the slp long tubes, i already had a x pipe installed and i hate to spend money twice:judge:.

09-12-2012, 10:21 AM
well im thinking just the slp long tubes, i already had a x pipe installed and i hate to spend money twice:judge:.

Look inside at the cat when you get them. The 2 1/4" pipe is almost touching the cat element. The set I installed got cut apart and fixed before I would install them.

09-21-2012, 09:55 PM
im almost have tempted to knock the cats out and have them tuned out when i finally do get around to getting a set of lt, then just put a set of mufflers on it.

09-22-2012, 06:15 PM
Consider the kooks 1-7)8 mid lenghths with cats and use your existing mid