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Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

This item fits the following BMWs: 

E30 BMW M3

E28 BMW 524td 528e 533i 535i 535is M5

E24 BMW 633CSi 635CSi M6

Free ground shipping! 

This Supersprint performance exhaust is built from the Euro M5/M6 exhaust layout but fits the non-M E24/E28 (see fitment notes below). It features oversized dual 50mm stainless steel pipes leading from the catalytic converter. This Supersprint system has a center resonator and rear muffler with free-flow designs for a sporty sound and less restriction to free up horsepower. Both systems are bolt-on to the stock factory catalytic converter (see fitment notes below) and use all of the stock hangers and gaskets. This makes for an excellent replacement exhaust system because the sound is such a great match to the M30 engine and retro cool that these cars have now. It's a classic growl and throaty sound without being overly aggressive. We've had nothing but compliments on the sound from this system. The previous mild steel versions have been discontinued - this system is now 100% T304 stainless steel!

Supersprint exhaust is widely recognized as the leader in complete exhaust system upgrades - extremely high quality, well designed for optimal flow, and amazing sound. Even at a premium price Supersprint is an unbeatable exhaust system because every aspect is done to such a high level. A Supersprint exhaust rewards you with a terrific sound, long lasting construction and excellent fitment. The Supersprint sound is very 'European' which fits the sporting sophistication of BMWs perfectly. Most systems are also modular - sections can be added or removed to custom tailor the exhaust sound to your preferance. Aside from 'Race' systems, their mufflers meet European noise laws so you get a refined and tuned sound without being excessively loud. Most Supersprint systems are built with larger diameter piping to improve exhaust flow which helps the engine do less work and make more horsepower! Supersprint exhausts generally run at a premium over other systems but no other system on the market can match their quality, performance, or reputation!

Fitment Note 1 (flanges):
1982-1988 635, 1984-1988 535 models should have a stock 3-bolt flange where the center resonator and front catalytic converter meet. This Supersprint system is a direct bolt-on replacement to this system.
1988-1989 635 BMW changed the center resonator and cat flanges from a 3-bolt triangle to a 2-bolt diamond-shaped flange. The Supersprint center resonator uses the 3-bolt flange. So you must either cut off the 3-bolt flange and reinstall the original 2-bolt flange. Or cut the 2-bolt flange from the cat and weld on a new 3-bolt flange (BMW p/n 18111178137 and gaskets p/n 18301723886, available separately).

Fitment Note 2 (hangers):
This system was originally designed for the Euro E24/E28 which does not have the rear hanger attachment over the tips like on a US model (you will need the Euro hanger setup). In addition the tips are shorter on the Euro muffler since the Euro bumpers do not extend as far as the US bumpers. So the tips on this muffler will sit just past the valance but tucked far under the bumper.
 

section:center resonator + rear muffler

connects to:stock cat section*

tip style:80mm dual round

material:T409 stainless steel (both sections)

This item fits the following BMWs:
1982-1988 E28 BMW 535i 535is
1982-1989 E24 BMW 635CSi

There are many benefits to installing harnesses in your BMW -

• maintain a proper driving position
• keep you planted in the seat and not bracing with your left leg or shoulder
• lower lap times thanks to improved driver confidence
• advanced technology is safer than standard 3-point belts

It's hard to put into words just how effective harnesses are in improving your driving experience. In addition to the obvious safety benefits, harnesses make you a better driver by removing distractions so your hands and feet are used for car control instead of bracing against a door panel or dead pedal. Everyone with harnesses will agree: they are a must-have upgrade to your driving experience and they wish they had installed them sooner.

The Rallye harnesses are Schroth's universal fit, bolt-in harness design that still meets DOT and TUV specs. The Rallye 4 harness fits most BMWs better than a Rallye 3 type thanks to its four mounting points that bolt to four existing anchor points in the BMW chassis: outboard lap belt anchor on B-pillar, inboard lap belt anchor on seat, and both rear seat belt anchors. The Rallye harnesses are a fixed, semi-permanent install but a quick-connect buckle is included in the rear seat harness so that the front and rear sections can be separated and tucked away when not in use. This also allows you to use the stock 3-point seatbelts in the front and rear seats without obstruction. All Schroth harnesses feature their asm technology that prevents your body from sliding under the lap belt and redces head and chest deceleration forces. Rallye belts are not side-specific; they fit either the Left or Right side of the vehicle.

Optional: Schroth Grips. Schroth harness grips slide into the ends of your Schroth harnesses and give your fingers something to lock onto when tightening the harness. Otherwise, your hand - or glove - has to yank on the end of the strap which might be slippery. Sold per harness for both shoulder and both lap belts (4 Grips total).

Seat Compatability: Schroth approves this harness only for stock seats or seats that have passed independent crash testing. The seat design must have a separate headrest and backrest. Single piece headrest and backrest (e.g. - F8X M3/M4 seats, Porsche 911 seats) are not approved because the shoulder straps fall to the sides and will not secure the driver properly. Observe all guidelines and instructions for installation and fitment.

E36 Fitment Note: a special bolt is required for installation on the stock E36 seat. Make sure you order this bolt for any E36 installations. Click here for the link to the bolt.

Rallye 4 Harness Summary:

• Suggested Use:  autocross, daily driver
• Shoulder Belt:  2" pull down
• Lap Belt:  2" pull down
• Buckle:  Rallye push button
• Installation:  permanent bolt-in
• Seat Compatability:  approved only for stock seats with headrest separated from backrest
• HANS compatible?  No.

When using any racing harness in any environment - even normal street use - adhere to this advice: "all the way tight, all of the time". Never loosen or slacken the belts for comfort or convenience! A loose racing harness will not protect you.

BMW Shifter Carrier Arm Bushings - Round are essential for enhancing shifting precision and feel in your BMW’s manual transmission. These 90A urethane bushings from Turner Motorsport replace the stock rubber bushings, which tend to wear out quickly, resulting in sloppy shifting. Designed to fit at the front of the shifter carrier arm, these bushings securely attach the carrier to the transmission, providing a stiffer connection that minimizes excessive play without increasing vibration. This upgrade is perfect for enthusiasts seeking a more responsive shifting experience.

These bushings are compatible with various BMW models, including the E30, E36, E46, E28, E34, E39, E24, and Z1 Roadster, and serve as a direct replacement for BMW part #25117519669. Installation is simple when the shifter carrier is removed from the vehicle.

Key Benefits:

• Enhances shifting precision and overall feel
• Replaces worn-out stock rubber bushings
• Made from durable 90A urethane for long-lasting performance
• Reduces excessive play without adding unwanted vibration
• Easy installation when the shifter carrier is removed
• Compatible with numerous BMW models, including E30, E36, E46, and more
• Direct replacement for BMW part #25117519669

For BMW enthusiasts seeking unique wheel options, ECS Tuning presents the H&R TRAK+ wheel adapters, perfect for those with a penchant for individuality. These lightweight adapters facilitate the installation of 5X112 Audi/VW wheels featuring a 57.1 center bore onto your BMW. Simply install these adapters and effortlessly mount your new wheels for an immediate visual upgrade.

Sold in pairs, two sets are necessary to adapt all four wheels. Every H&R Hub Conversion kit comes complete with all the necessary hardware required for seamless vehicle fitting.