17 S550 next steps...

[Duffie112]

Hey guys, I currently have a 17 GT with a Roush CAI Ngauge and Lund performance tune with MBRP street cat back, what is next? Longtubes? GT350 IM? Not sure what would be most beneificial next. Any input? Thanks guys! :ford:

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[Zelek]

Long tube headers for sure with a tweaked tune for those.

Wheels/Tires/Suspension would be another set of options too.

 

[kluke15]

1. long tubes
2. tires
3. springs

 

[Duffie112]

I currently have an airlift setup on stock pp wheels, I want to do the stop the hop kit from Steeda and upgrade to some better tires in the near future. Just doing some research on if Steeda is the way to go or BMR, so many decisions lol. Thanks for the response guys!

 

[Chad11491]

I'd do longtubes. Wait and see where the 18 IM lands for people performance wise and see if you'd like to do that vs gt350.

for suspension i've had both BMR and Steeda's IRS kits and prefer steeda by far. No NVH and less hop. I had noticeable harshness comparatively with the bmr kit.

 

[Dalton@Evolution]

I would say GT350 Manifold.

 

[bunk22]

I agree with the others unless you have an auto, then IMO, aftermarket tq converter. Best mod I did but of course my stock one failed at 16k miles so it was either another stock converter or aftermarket. I chose a Circle D 4c. If a manual, ignore me

 

[Duffie112]

I have a 6 speed sorry lol, so it looks like I’ll be looking into a set of headers. I have a MBRP street 3” cat back now. I’m looking at the MBRP catted 1 -7/8 headers from CJ’s. Any thoughts? I’m hoping it’s not obnoxious lol. I hear people saying how loud there car is when they throw headers on it.

 

[Zelek]

I have a 6 speed sorry lol, so it looks like I’ll be looking into a set of headers. I have a MBRP street 3” cat back now. I’m looking at the MBRP catted 1 -7/8 headers from CJ’s. Any thoughts? I’m hoping it’s not obnoxious lol. I hear people saying how loud there car is when they throw headers on it.

Catted headers help with the noise and rasp a little but you need a reasonable catback behind it. I'm not sure how the MBRP sounds with headers. That's the whole reason I went with the Corsa Sport. It's still pretty loud. Gets brutal when I really go WOT, but it's civil when i want it to be and sounds good.

Headers will increase volume a ton, and the cold start on a stock tune is brutally loud. A tune can help fix that which it did for me with Lund.

 

[Duffie112]

Gotcha, my cat back isn’t crazy loud now, it does get a bit louder when your WOT but it’s still tolerable, I guess there is only one way to find out lol. Now the question is how does the catted headers do with inspections? Does it pass? How are you guys getting around that? Thanks for all the input guys!!

 

[twistedoctane]

I have the steeda IRS kit and love it. No added NVH. Just as good as 'go fast' parts in my opinion.

 

[beefcake]

long tubes and mani, let me know if you need help with anything or selection

 

[tj@steeda]

I currently have an airlift setup on stock pp wheels, I want to do the stop the hop kit from Steeda and upgrade to some better tires in the near future. Just doing some research on if Steeda is the way to go or BMR, so many decisions lol. Thanks for the response guys!

Happy to help when you make your decision - some good feedback from the members below - if there any questions I can help with, don't hesitate to ask.

Best Regards,

TJ

 

[gameovergt]

Steeda suspension is great so far. CJ Pony Parts steering wheel also made car more fun to drive.

 

[Zelek]

Gotcha, my cat back isn’t crazy loud now, it does get a bit louder when your WOT but it’s still tolerable, I guess there is only one way to find out lol. Now the question is how does the catted headers do with inspections? Does it pass? How are you guys getting around that? Thanks for all the input guys!!

I have two tunes, one with the rear sensors off and one with them on. I'm currently running the tune with them on and still have no check engine light. It's been about 6 months now running that tune.

Inspection is all based on where you are. Where I am in Texas in Williamson county, there's no emissions, no visual, just safety inspection. I have to be able to pass the OBDII test on startup and with the rear O2's off, you fail instantly. I run catted headers more for the rasp reduction and the possibility of having to do visual inspections or an emissions test in the future if anything changes. We're talking negligible horsepower differences between both catless and catted.

If you have visual inspection, definitely go with the cats.

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