When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
It's not going to run very well, because you're placing the O2s further back in the exhaust stream. They're set at a certain distance so they can react to changes in the air/fuel mixture, and moving them farther back increases the distance of the feedback loop. It may run well enough to get it to a tuner, but I wouldn't plan on keeping it that way for long. Not to mention, you're greatly increasing exhaust flow out of the engine, so in turn your engine's ability to ingest air will increase. If untuned, the air/fuel mixture could become dangerously lean.
For only headers, consider doing a mail-in tune instead of dropping big bucks on a dyno tune. I did a Frost mail-in tune for my stalled and bolt-on car and it turned out really well.
FWIW, I have a mail order tune on my Camaro with headers, high flow cats, and a BTR stage 4 LS3 cam, and it rips. I second doing a mail order tune, it's too cheap not to.
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.
7 Most Reliable High-Performance Engines GM Has Ever Built
Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...
