Stillen High Flow cats

Jbernal15 · 07-19-2012, 01:38 PM

Just a question, Has anyone here installed the Stillen high flow cats in their Z? If so how do they sound? Im slowly building up my Z and was trying to get some info.

threeseventy · 07-20-2012, 01:52 AM

I had the G3 first, then the Dual Exhaust, just like you.. the cats added 50% to my enjoyment of the car. Sharp. Responsive. Alive. You know how it sounds when you're at a race and all the GT cars come down the straight and brake into the turn and they rev match the downshift and how awesome it sounds? There you go.

You'll need a tune with cats though, and UpRevs are north of $600 this year, so budget a grand overall to complete your build if Cats are all you have left..

Jbernal15 · 07-21-2012, 05:14 AM

Cool bro if you can, can up upload a sound clip of the sound? Or send it to my email?

simota1 · 07-21-2012, 07:04 AM

the stillen cats sound amazing... but if i could do it all over again i would recommend getting berks they are a tad bit louder for some reason.... plus stillen cats arent stainless...

simota1 · 07-21-2012, 07:05 AM

thats my z when i had high flow cats and a greddy spectrum installed

gy954 · 07-21-2012, 08:19 PM

I have the Stillen cats and they sound great..."throaty" at idle. The other day a delivery van pulls up in my drive and the driver asks could I please move my car so he can turn around. When I started her up he say, "Whoa!". Nice.

NuffZed · 07-26-2012, 05:23 AM

I did the CBE and HFC at the same time but the sound is great. I like the hiss, pop and gurgle the car gained. Adds personality. Dunno about you guys but my '12 started throwing codes until I added a set of O2 restrictor tubes to the HFCs.

Jbernal15 · 08-07-2012, 02:09 PM

thanks guys i appreciate the info

nightwish · 08-07-2012, 04:16 PM

If you replace it just keep in mind your warranty is out the door

chuckie311 · 08-07-2012, 06:46 PM

they cannot void your warranty beacuse you replace your cats know your facts!!

Tombonombona · 08-07-2012, 09:18 PM

When you start messing with emissions equipment, then they can start denying warranty.

nightwish · 08-08-2012, 04:31 PM

My statement above is from personal experience when i made a claim with the dealership, o2 sensor went bad only after 20k and had to pay out of pocket even with maintenance plus also found a list of other things voided. Keep the cat and u r good to go. People said just take it off before you go but that would mean every service and they do document if you mod here atleast. They can charge for diagnostic etc. Certainly not the entire warranty of the vehicle but more than you may think..I'm not here to debate just giving my two cents, smiles
"Drive hard and you will find yourself on the side of the road sooner than later"

nightwish · 08-08-2012, 05:47 PM

Just noted you drive a 2011

07-19-2012, 01:38 PM	#1 (permalink)
Jbernal15 Base Member Join Date: Jan 2011 Location: San Antonio & Laredo Age: 46 Posts: 15 Drives: 11 370Z - 07 GTI Rep Power: 14	Stillen High Flow cats Just a question, Has anyone here installed the Stillen high flow cats in their Z? If so how do they sound? Im slowly building up my Z and was trying to get some info. __________________ // G3 intake // Stillen Dual exhaust //

07-21-2012, 05:14 AM	#3 (permalink)
Jbernal15 Base Member Join Date: Jan 2011 Location: San Antonio & Laredo Age: 46 Posts: 15 Drives: 11 370Z - 07 GTI Rep Power: 14	Cool bro if you can, can up upload a sound clip of the sound? Or send it to my email? __________________ // G3 intake // Stillen Dual exhaust //

07-21-2012, 07:04 AM	#4 (permalink)
simota1 A True Z Fanatic Join Date: May 2009 Location: Dededo, Guam Posts: 6,642 Drives: solid red 370z 6mt Rep Power: 404	the stillen cats sound amazing... but if i could do it all over again i would recommend getting berks they are a tad bit louder for some reason.... plus stillen cats arent stainless... __________________ *TOP SECRET/POWERHOUSE AMUSE/ARC/DAYTONA RACING/VARIS/MINES/GANADOR/J-LINE/WORK EMOTION CR KAI/GT SPEC/CARBON SIGNAL/ZOOM ENGINEERING/ CARBON FIBER ELEMENT/STILLEN/* Last edited by simota1; 07-21-2012 at 07:07 AM.

07-21-2012, 07:05 AM	#5 (permalink)
simota1 A True Z Fanatic Join Date: May 2009 Location: Dededo, Guam Posts: 6,642 Drives: solid red 370z 6mt Rep Power: 404	thats my z when i had high flow cats and a greddy spectrum installed __________________ *TOP SECRET/POWERHOUSE AMUSE/ARC/DAYTONA RACING/VARIS/MINES/GANADOR/J-LINE/WORK EMOTION CR KAI/GT SPEC/CARBON SIGNAL/ZOOM ENGINEERING/ CARBON FIBER ELEMENT/STILLEN/*

07-21-2012, 08:19 PM	#6 (permalink)
gy954 Base Member Join Date: Mar 2012 Location: Sonoma County, CA Posts: 163 Drives: 2011 370Z Rep Power: 181	A Tale I have the Stillen cats and they sound great..."throaty" at idle. The other day a delivery van pulls up in my drive and the driver asks could I please move my car so he can turn around. When I started her up he say, "Whoa!". Nice.

07-20-2012, 01:52 AM	#2 (permalink)
threeseventy Track Member Join Date: Mar 2011 Location: Huntington Beach, CA Posts: 598 Drives: Opinion Rep Power: 15	I had the G3 first, then the Dual Exhaust, just like you.. the cats added 50% to my enjoyment of the car. Sharp. Responsive. Alive. You know how it sounds when you're at a race and all the GT cars come down the straight and brake into the turn and they rev match the downshift and how awesome it sounds? There you go. You'll need a tune with cats though, and UpRevs are north of $600 this year, so budget a grand overall to complete your build if Cats are all you have left..

07-26-2012, 05:23 AM	#7 (permalink)
NuffZed Base Member Join Date: May 2012 Location: Canada Posts: 105 Drives: 12 370ZR Blk Rose M6 Rep Power: 12	I did the CBE and HFC at the same time but the sound is great. I like the hiss, pop and gurgle the car gained. Adds personality. Dunno about you guys but my '12 started throwing codes until I added a set of O2 restrictor tubes to the HFCs. __________________ '12 Blk Rose 6MT Sport Nav - Stillen Gen2 intakes - Stillen HFCs and Cat Back Exhaust - H&R 15/20mm spacers - Koni Shocks - Swift Springs

08-07-2012, 02:09 PM	#8 (permalink)
Jbernal15 Base Member Join Date: Jan 2011 Location: San Antonio & Laredo Age: 46 Posts: 15 Drives: 11 370Z - 07 GTI Rep Power: 14	thanks guys i appreciate the info __________________ // G3 intake // Stillen Dual exhaust //

08-07-2012, 04:16 PM	#9 (permalink)
nightwish Base Member Join Date: Jul 2012 Location: na Posts: 111 Drives: na Rep Power: 12	warranty out the door If you replace it just keep in mind your warranty is out the door

08-07-2012, 06:46 PM	#10 (permalink)
chuckie311 Enthusiast Member Join Date: Jul 2012 Location: las vegas Posts: 313 Drives: Q50/G37 Rep Power: 12	they cannot void your warranty beacuse you replace your cats know your facts!!

08-07-2012, 09:18 PM	#11 (permalink)
Tombonombona Base Member Join Date: May 2012 Location: Sk, Canada Posts: 159 Drives: 2012 370z Mag Black Rep Power: 12	When you start messing with emissions equipment, then they can start denying warranty. __________________ Tom B. Exotic Speed R2 Titan Catback-GTM Stage 2 Supercharger 522 whp on a mustang dyno 2004 Subaru STi **SOLD WRITTEN OFF**

08-08-2012, 04:31 PM	#12 (permalink)
nightwish Base Member Join Date: Jul 2012 Location: na Posts: 111 Drives: na Rep Power: 12	not the entire warranty but parts My statement above is from personal experience when i made a claim with the dealership, o2 sensor went bad only after 20k and had to pay out of pocket even with maintenance plus also found a list of other things voided. Keep the cat and u r good to go. People said just take it off before you go but that would mean every service and they do document if you mod here atleast. They can charge for diagnostic etc. Certainly not the entire warranty of the vehicle but more than you may think..I'm not here to debate just giving my two cents, smiles "Drive hard and you will find yourself on the side of the road sooner than later" Last edited by nightwish; 08-08-2012 at 05:09 PM.

08-08-2012, 05:47 PM	#13 (permalink)
nightwish Base Member Join Date: Jul 2012 Location: na Posts: 111 Drives: na Rep Power: 12	my fault i took it off topic Just noted you drive a 2011

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