TA1 catback for BMW M135i F40 b48 Variable Exhaust Valve With Controller

• Over 40% lighter than standard stainless steel – significantly reduces rear unsprung mass, improving throttle response and handling agility.
• Excellent heat resistance, corrosion resistance, and aging resistance – maintains shape and color under sustained high loads.
• Lasts over 3 times longer than stainless steel exhaust systems.
• Natural titanium matte finish develops a unique blue-purple heat coloration after high-temperature use – performance and visual appeal in one.

Precision Fitment: 1:1 OEM Mold, True Bolt-On Installation

• The product was developed based on a 1:1 scan of the original exhaust pipe data—the pipe routing, hanger positions, and connection points are exactly the same.
• Direct bolt-on replacement for the factory catback system – no cutting, no welding, no custom fabrication needed.
• Perfect fitment eliminates rattles, leaks, and drone – maintains factory underbody clearance and drivability.

Adjustable Valve System: Variable Exhaust with Dedicated Controller

• Valves open: Delivers aggressive, deep, and penetrating roar with no annoying drone – crisp, high-RPM wail without distortion, unleashing the authentic naturally aspirated sound.
• Valves closed: Near-stock quiet performance – stays low-key and street-legal, ideal for daily commuting and relaxed cruising.

Performance Upgrades: Weight Reduction + Improved Flow + Enhanced Sound

• Lightweight: Saves approximately 8–10 kg (18–22 lbs) over the factory stainless steel system – reduces rear-end weight and improves front-to-rear weight distribution.
• Better exhaust flow: Smooth inner walls and optimized pipe diameter reduce backpressure and increase flow velocity – small gains in horsepower and torque with sharper throttle response.
• Pure sound: Titanium’s unique acoustic properties deliver a clearer, more resonant tone – no harshness, no muffled lows, no breakup at high RPMs.

Quality Assurance – Precision Engineering, Every Detail Matters

• High-temperature pull-rod welding technology – inner and outer double-layer welding for smooth, strong, leak-free joints that won’t crack.
• Service life of 10+ years.
• Reinforced titanium hanger brackets with OEM-spec rubber bushings – effectively dampen vibration for a quieter, more comfortable ride.

Custom Logo Option

• Laser-engraved custom logos available upon request.

Vehicle Fitment

• BMW M135i F40 b48

Package Includes

• TA1 Titanium Catback Exhaust System
• Dedicated Wireless Remote Controller + Control Module for variable exhaust valve

FAQ

• Why Choose Us?

We have mass production compatibility for exhaust systems covering over 3,000 vehicle models worldwide.

If you cannot find a suitable exhaust product for your car, feel free to contact our professional customer service team for a one-on-one custom fitting solution.

We maintain a complete exhaust mold library and continuously develop new models to cover most mainstream vehicles on the market.

We also provide one-stop customized processing services, including free logo customization, to fully meet your personalized modification needs.

• Production lead time ？

Custom Exhaust Systems:

The production lead time for stainless steel exhaust products is 2 weeks.

The production lead time for titanium alloy exhaust products is 3 weeks.

• Our Shipping Methods？

We partner with major global carriers including UPS, DHL and FedEx. Standard shipping takes 7–10 business days.

Delivery times may vary slightly due to customs inspections, local logistics arrangements or unforeseen international transit conditions.

We will send you the tracking number immediately after shipment, so you can monitor your package status in real time at any moment.

We support two mainstream international delivery terms: DAP and DDP.

1. DAP: The customer takes charge of destination customs clearance and any applicable import duties and local taxes.
2. DDP: Full door-to-door delivery service, with all customs clearance procedures, import duties and taxes fully covered by us.

By default, all orders will be delivered under DAP shipping terms.

• Logo customization service

Free logo customization is available if you supply your own logo design. Please contact us to confirm the arrangement.