Your factory exhaust is choking your engine's potential. This Black Friday & Cyber Monday (Nov 21 - Dec 2), reduce backpressure and maximize throttle response with SPELAB's performance upgrades.
🔥 PERFORMANCE EXHAUST SALE 🔥
Nov 21 - Dec 2: 15% OFF Sitewide (Code: BFCM15)
Nov 28 (Black Friday): 20% OFF First 200 Orders (Code: CL20)
Many drivers think exhaust upgrades are just about noise. They are wrong. A properly engineered Performance Exhaust System is about Efficiency. By removing restrictions, you allow the engine to expel spent gases faster, allowing the turbo to spool quicker and the engine to run cooler.
1. Diesel Performance: Lower EGTs & Faster Spool
For Cummins, Powerstroke, and Duramax owners, the factory exhaust (filled with DPF/CAT filters) acts like a cork. Understanding turbocharger efficiency helps explain why reducing this backpressure is critical.
📉 Reduce Backpressure
Our 4" and 5" Turbo-Back Systems minimize flow resistance. This means your turbo doesn't have to work as hard to create boost, improving longevity.
⚡ Instant Throttle Response
Less restriction means the turbo spools up faster. Say goodbye to that dangerous lag when merging onto the highway.
Top Picks for Reliability & Power:
- Turbo-Back Exhausts: Essential for 6.7 Cummins and 6.4 Powerstroke builds to drop EGTs by up to 200°F.
- Up-Pipes: Don't lose drive pressure to leaks. Our Powerstroke Up-Pipes use heavy-duty bellows to handle heat cycles without cracking.
2. Gas Performance: Headers & Scavenging
For naturally aspirated or supercharged engines (like the LS or HEMI), power is made at the manifold. Stock cast manifolds are rough and restrictive.
SPELAB Stainless Steel Headers feature mandrel-bent primaries that:
- Increase Exhaust Velocity: Creating a scavenging effect that pulls exhaust gases out of the cylinder.
- Boost Top-End Power: Allows the engine to breathe freely at high RPMs.
- Compatible Models: Deals available for Chevy LS Swaps, Ford Mustang, and Nissan 370Z.
3. On-Demand Flow: Electric Cutouts
Sometimes you need maximum flow for the track, but need to stay street-compliant for the drive home. Wondering if they work? Read our guide on how exhaust cutouts improve performance.
Our Electric Exhaust Cutouts give you the best of both worlds. By bypassing the muffler at the flip of a switch, you eliminate the final restriction point, maximizing horsepower exactly when you need it.
Up to 20% off
Get Black Friday Deal
Up to 20% off
Get Black Friday Deal
Up to 20% off
Get Black Friday Deal4. Weight Reduction & Handling
Factory exhaust systems are incredibly heavy. A full DPF/DEF system on a modern truck can weigh over 100 lbs.
Replacing this with a lightweight Stainless Steel Race Pipe significantly reduces the vehicle's curb weight. This improves the power-to-weight ratio and handling dynamics, making the truck feel lighter and more agile.
💰 The Performance Bundle: How to Hit $800
Invest in a complete system overhaul to qualify for the Free Premium Exhaust Tip (Value $150).
The Recommended Build:
- The System: Start with a 5" Turbo-Back Exhaust Kit for maximum flow (~$450).
- The Source: Add High-Flow Headers or Up-Pipes (~$250).
- The Control: Add an Electric Cutout Kit for track days (~$150).
Total: $850+. Benefit: You get the 20% Discount (First 200 orders), 3X Points, and the free finishing tip!
