But I live outside the US. So its difficult for me to get a tune from BB.
Also I think i can only get high flow cats as the noise level will attract the cops here.
Minor performance mods help.
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But I live outside the US. So its difficult for me to get a tune from BB.
Also I think i can only get high flow cats as the noise level will attract the cops here.
Is it the SCT X4 tuner?
Is it better than the diablo sport i3? (the price is similar)
iamdub
Full Access Member
They tune via internet, you'll just have to source an AutoCal. You use the AutoCal to collect data, email it to them, they tweak it, email it back to you, you upload it, etc. I've never worked with the Diablo, but I think you can get a custom "Diablew" tune via internet with that as well. @kbuskill can give you details.
Factory cats are already "high flow". Aftermarket ones are the same, just smaller in size and sometimes insufficient. For your budget, a tune would be the biggest bang-for-the-buck. If you want some sound, just replace the factory muffler with a ~$50-$100 aftermarket one. No need to replace the pipes, etc. An Airaid MIT would be a nice addition as well. Do those things before you get the tune.
This autocal thing is expensive. Also everything is expensive here.
A tuning garage here said they will tune my tahoe for 500$. But I'll loose my stock tune I think
And I saw this S&B CAI for 400$. As in the summer it gets really hot so I think a closed box intake might be good. Or get a K&N filter and put some holes in the Stock air box?
And a muffler for 100$ or less.
And thats my budget 1k.
gooffeyguy
Tom
The factory airbox is a "cold air" setup. It draws its air from the cooler fender area.
Just get a good oiless type of filter, like an AEM dry flow. Oiled filters tend to coat the air flow sensor elements and can cause problems if not kept clean
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I was planning to buy K&N filter. So this is better? I live in a dusty area. With sand everywhere.
TY
Allow me to offer this based on personal experience. Go to Bankspower.com and research part #64322, their Pedal Monster with iDash Super Gauge. $574.00. Watch their customer videos to see their amazement. It is completely plug and play. No change to your tune, etc. Uses all the power already in the engine. Moves all the response of the engine up into the first half of the pedal travel. 3 levels of performance increase, with 10 increments in each level. You will not realize you are driving the same Tahoe. My 2007 PPV with 187,000 miles is a completely different vehicle now.
Spohn Suspension: Spohn.net, offers a $99.00 front end lift kit, using spacers at both ends of the strut. I rebuilt my rear suspension with their products: world class parts. Serviceable and red powder coated.
Now you have $300.00 left to spend.
iamdub
Full Access Member
As @gooffeyguy said, just get a good filter. The factory air box IS a "cold air intake" and you already have it. It will flow more air than what that engine can suck at full throttle at 6,000 RPM. It is NOT a restriction. Sure, it's not as pretty as an expensive aftermarket one, but is appearance for something under a closed hood worth $400? The only functional improvements the factory setup could use is a good seal between the filter box and fender and a smoother duct to the throttle body. The original foam seal is thin and loses it's effectiveness with age, especially after the adhesive fails and the foam falls down, exposing the air box to the hot underhood air. Why would anyone in their right mind drill holes in a box designed to isolate the intake air from the hot engine bay air?! Here's a quick, simple and cheap solution for that in my build thread: https://www.tahoeyukonforum.com/threads/growing-up-doesnt-have-to-suck.93510/page-68#post-1451013
To give you an idea of how well the factory setup works, my intake air temps are consistently in a range of 1-4 degrees over ambient, depending on cruising or idling. Also, I have an AEM DryFlow filter. K&N bought AEM or AEM bought K&N, so these filters are the same regardless what's embossed on the rubber seal. Just don't get the oiled type. The dry one flows and filters GREAT. I've had it installed for over 50,000 miles and have removed it for cleaning twice with the first time after 20,000 miles at least. The duct to the throttle body was CLEAN, as in, nothing to show a streak when I wiped it and nothing on the paper towel.
The Airaid MIT has been proven to add a few horses but really shines with the meaty growl it produces under throttle. As far as sound, I was satisfied with just the intake growl but I still wanted a louder muffler. You only hear it when the engine is under load, so it's not a nuisance when cruising. To save the cost of the MIT, you can make your own duct from the filter box to the throttle body with PVC or ABS plumbing pipe, some silicone couplers and spray paint. It'll work essentially the same, just won't look as cool.
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