Exhaust System blog
Explore expert guides, upgrade insights, maintenance tips, product comparisons, and installation knowledge across a wide range of automotive performance and replacement parts.
Cheap vs. Expensive Downpipes: What Are You Really Paying For?
A premium downpipe does not automatically make more horsepower than a cheaper pipe; the extra money should buy measurable improvements in fitment, turbo-outlet geometry, weld quality, catalyst documentation, thermal control,...
Exhaust Leak After Downpipe Installation: Where Should You Check First?
If ticking, exhaust odor, or a new warning light starts right after a downpipe install, inspect the joints that were disturbed before blaming the turbo, catalyst, or tune: the turbo...
Do Catted Downpipes Smell?
Do Catted Downpipes Smell? A properly sealed catted downpipe can produce more noticeable exhaust odor than the original converter, especially during roughly the first 1–5 minutes after a cold start,...
How Much Louder Does a Downpipe Make Your Car or Truck?
Compare catted, catless, resonated, and diesel aftertreatment setups before you buy, then use rpm, load, and fitment clues to diagnose unwanted noise.
Will a Downpipe Pass Emissions? Catted, Catless, OBD, and State Inspection Guide
A downpipe can pass an emissions inspection only when the exact pipe, catalyst or diesel aftertreatment layout, engine calibration, OBD status, and local inspection rules match the tested vehicle. A...
Do You Need a Tune for a Downpipe? Engine Platform Guide
A downpipe does not automatically require an ECU tune, but the right answer changes with the engine platform, catalyst layout, pipe size, ECU strategy, and how hard the vehicle will...
Will a Catted Downpipe Cause a Check Engine Light?
A catted downpipe is the turbo-outlet exhaust section built with a catalytic converter, and it can still trigger a check engine light when catalyst performance, sensor placement, installation, or calibration...
Catted vs Catless Downpipe: Which One Should You Choose?
Compare catted and catless downpipes for power, sound, exhaust smell, CEL risk, tuning, fitment, towing, and U.S. emissions rules. See which setup makes sense for daily driving, work trucks, or...
Black Downpipe-Back Exhaust: Fitment, Sound, Heat, and Use
Compare T409, T304, and aluminized steel black downpipe-back exhausts for diesel trucks, including corrosion resistance, heat wrap, towing use, fitment, and legal considerations.
FEATURED PRODUCTS
