{"product_id":"porsche-997-1-carrera-exhaust-mufflers-race-headers-yonristic-performance","title":"Porsche 997.1 Carrera Exhaust Mufflers \u0026 Race Headers - Yonristic Performance","description":"\u003cp\u003eSuperior Porsche 997.1 Carrera Exhaust System by Yonristic Performance Center X-pipe clarity. Tuned side cans. True PSE valve integration.\u003c\/p\u003e\u003cp\u003eThe 997.1 Carrera family (3.6\/3.8 NA flat-six) is one of the sweetest-revving 911s ever built, but the factory exhaust keeps a lid on its character. The big center canister and conservative cross-over dull throttle response, flatten the midrange, and leave the note a little hollow—more hush than heartbeat. Our Yonristic system replaces the entire center section with a true X-pipe core flanked by tuned high-flow cans, then routes to compact side mufflers that preserve tone while controlling volume.\u003c\/p\u003e\u003cp\u003eThe result is the sound the 997 deserves: cleaner harmonics, fuller midrange, and a hard-edged, motorsport top end—without the droning that plagues straight-through conversions. Design \u0026amp; Sound (what you see in the photos) True Center X-Pipe: Positioned at the pulse-exchange sweet spot, the X equalizes pressure between banks, improving scavenging and sharpening the engine’s attack as revs rise. Tuned High-Flow Cans (center): Sized and placed to knock out the 997’s boom frequencies; they smooth the note under cruise while keeping the exhaust path free-flowing.\u003c\/p\u003e\u003cp\u003eCompact Side Mufflers: Unpacked, straight-through internals maintain velocity and give the car a rich, classic 911 timbre at light load with a fierce wail when you lean on it. No Drone Tuning: Geometry and can volumes are modeled around cabin resonance zones, so highway cruising stays calm while exterior character remains aggressive. Valve Control — OEM behavior, plug-and-play We retain the factory PSE valve locations and actuator mounts; on PSE-equipped cars the behavior is fully preserved.\u003c\/p\u003e\u003cp\u003eFor non-PSE cars, our optional remote valve kit gives you two characters on demand—refined for long trips, or wide-open for back roads. Materials \u0026amp; Craftsmanship Built from AISI 304 stainless steel for daily-driven durability (titanium available by request), each system is derived from 3D scans of the 997 underbody for perfect alignment. CNC-machined flanges and brackets lock to factory points, while back-purged TIG welds ensure smooth internal transitions and long life under heat cycling.\u003c\/p\u003e\u003cp\u003eMandrel bends keep the cross-section consistent from inlet to tips. Performance — realistic gains you can feel On a healthy 997.1, a well-designed X-pipe cat-back typically delivers +8–12 whp and +8–12 lb-ft with noticeably crisper throttle response. Pairing our system with 200-cell sport cats and a quality ECU calibration commonly lifts total improvements into the +15–25 whp range, with a broader, cleaner pull to redline.\u003c\/p\u003e\u003cp\u003eThe headline, however, is tone quality and weight: deleting the bulky center canister drops mass and replaces the muted stock voice with a sharp, classic flat-six cry. Fitment \u0026amp; Options Models: 997.1 Carrera \/ Carrera S \/ Carrera 4S (and GTS applications supported—confirm valve\/connector style at order). Tips: Quad outlets in polished, satin black, burnt, or carbon finishes.\u003c\/p\u003e\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cp\u003e100% bolt-on, reversible; uses factory mounting points; no cutting or welding.\u003c\/p\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eWorks with OE manifolds or aftermarket headers\/sport cats. Premium Quality Mufflers for Enhanced Performance The Porsche 997.1 Carrera exhaust system by Yonristic Performance features premium grade mufflers designed to optimize exhaust flow. Crafted from high-quality stainless steel, these mufflers deliver durability and resistance to corrosion while ensuring a noticeable improvement in both sound and performance.\u003c\/p\u003e\u003cp\u003eThey produce a deeper, sportier exhaust note that amplifies the driving experience without becoming overwhelming. Perfectly engineered for the 997.1 Carrera model, these mufflers allow enthusiasts to enjoy a robust and responsive ride while maintaining excellent emissions compliance. Precision-Built Race Headers for Maximum Power Yonristic's race headers included in the Porsche 997.1 Carrera exhaust system provide a significant boost in engine efficiency and horsepower.\u003c\/p\u003e\u003cp\u003eDesigned with smooth bends and equal-length tubing, the headers improve exhaust scavenging, which increases power output across all RPM ranges. This precision-built setup ensures an aggressive exhaust tone, delivering that race-inspired sound while optimizing performance on both street and track. Installation is straightforward, with parts engineered for a direct bolt-on fit, maintaining factory reliability and enhancing your Carrera's competitive edge.\u003c\/p\u003e\u003cp\u003eDurability Meets Style with Expert Craftsmanship Beyond performance, the Porsche 997.1 Carrera exhaust system stands out for its superior craftsmanship and stylish design. Yonristic Performance uses top-tier materials and advanced welding techniques, resulting in a robust exhaust system capable of handling intense driving conditions. Its polished finish and well-designed components enhance the visual appeal of your Carrera’s rear end.\u003c\/p\u003e\u003cp\u003eEvery element is tested for fit, function, and durability, ensuring you receive a product that not only sounds and performs great but also lasts. This combination makes the system a smart upgrade for enthusiasts seeking longevity and style\u003c\/p\u003e","brand":"Yonristic Performance","offers":[{"title":"AISI304 Stainless Steel \/ Catback System","offer_id":58726719029629,"sku":null,"price":3774.0,"currency_code":"USD","in_stock":true},{"title":"AISI304 Stainless Steel \/ Catback + Free Flow Headers","offer_id":58726719062397,"sku":null,"price":4247.0,"currency_code":"USD","in_stock":true},{"title":"AISI304 Stainless Steel \/ Catback + High Flow Headers (200 Cell)","offer_id":58726719095165,"sku":null,"price":4382.0,"currency_code":"USD","in_stock":true},{"title":"TI-6AL-4V Titanium \/ Catback System","offer_id":58726719127933,"sku":null,"price":4854.0,"currency_code":"USD","in_stock":true},{"title":"TI-6AL-4V Titanium \/ Catback + Free Flow Headers","offer_id":58726719160701,"sku":null,"price":5260.0,"currency_code":"USD","in_stock":true},{"title":"TI-6AL-4V Titanium \/ Catback + High Flow Headers (200 Cell)","offer_id":58726719193469,"sku":null,"price":5867.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0405\/5649\/5001\/files\/385_c04a1c3e-76f5-4839-afdd-77e4fedb3b6e.jpg?v=1789999640","url":"https:\/\/www.bafmotorsport.co.uk\/products\/porsche-997-1-carrera-exhaust-mufflers-race-headers-yonristic-performance","provider":"BAF Motorsport","version":"1.0","type":"link"}