I have a 03 tl type s with a coupld of mods. I just ordered some headers, and spacer and already have a cat bat exhaust, for the last peice, im looking for a high flow cat. Any sugestions????

 

ATLP, XLR8, Magnaflow are the ones that come to mind. there could be more.

 

Did you feel any difference

 

i dont actually have one. i just know what some good brands are lol.

 

I thought the XLR8 was the only option? That's all I see on heeltoe, and they undertook vending ATLP parts.

I'm sure there's plenty of universals though.

 

our sponsoring vendor Excelerate has several cat options from budget to hi-flow with extended tube for O2 sensor,,
otherwise you need to add a shield -spark plug anti fouler- to the O2 sensor to slow and reduce the flow past it- or you freak the ecu out

ck his site www.excelerateperformance.com
or call Josh direct for best advice on what fits your needs and budget

 

XLR8 sells the 2.5"-2.5" version from random tech.... get those.

 

Yea im thinking about ordering it when i get out of work. does anybody know if they feel a difference and is it a lot louder. i removed my resinator threw wider piping on and have tusudo exhaust.

 

interesting.. i wonder if anyone took the tsudo axle backs and put on their own 2.5" to 2.25" mid pipe on.

 

it makes it a lil bit louder but it may make your exhaust really raspy with me that was the case the high flow cat made my exhaust really tinny and raspy and i took it off immediately the next day and sold it now im just running headers with stock cat and atlp exhaust. but if your exhaust has resonator still in it then it should be ok mine did not.

 

put it on the dyno to see the differance
your butt dyno wont feel 5 hp,,but 40 total,, yes!!
the torque range changes with those mods, so dyno will show you most efficient shift rpm

 

Yeah, keep the exhaust resonator, but remove the mid-muffler.

 

one last thing will i receive a check engine light when i throw the high flow cat on

 

I dont know if anybody ever did it but it sounds great, no rasp just a clean deep sound.

 

you might
UNLESS you add the reducer device -`spark plug anti fouler` slightly modded for our use-
to make the flow rate normal for the sensor

 

i have a magnaflow on my 02 non type S its cheap i paid like 120 i really didnt notice much sound or performance though